WO2000075111A1 - Complexe metallique de formazan - Google Patents
Complexe metallique de formazan Download PDFInfo
- Publication number
- WO2000075111A1 WO2000075111A1 PCT/JP2000/003565 JP0003565W WO0075111A1 WO 2000075111 A1 WO2000075111 A1 WO 2000075111A1 JP 0003565 W JP0003565 W JP 0003565W WO 0075111 A1 WO0075111 A1 WO 0075111A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- formazan
- metal complex
- ring
- group
- present
- Prior art date
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- -1 Formazan metal complex Chemical class 0.000 title claims abstract description 213
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- 239000003446 ligand Substances 0.000 claims abstract description 19
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- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical group [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 claims description 58
- 229910052759 nickel Inorganic materials 0.000 claims description 29
- 229910052751 metal Inorganic materials 0.000 claims description 26
- 239000002184 metal Substances 0.000 claims description 25
- VMGAPWLDMVPYIA-HIDZBRGKSA-N n'-amino-n-iminomethanimidamide Chemical compound N\N=C\N=N VMGAPWLDMVPYIA-HIDZBRGKSA-N 0.000 claims description 23
- 125000000217 alkyl group Chemical group 0.000 claims description 15
- YLQBMQCUIZJEEH-UHFFFAOYSA-N Furan Chemical group C=1C=COC=1 YLQBMQCUIZJEEH-UHFFFAOYSA-N 0.000 claims description 10
- JUJWROOIHBZHMG-UHFFFAOYSA-N Pyridine Chemical group C1=CC=NC=C1 JUJWROOIHBZHMG-UHFFFAOYSA-N 0.000 claims description 10
- 125000001424 substituent group Chemical group 0.000 claims description 9
- 150000004696 coordination complex Chemical class 0.000 claims description 8
- 150000002500 ions Chemical class 0.000 claims description 8
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- 239000010931 gold Substances 0.000 claims description 7
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- WPBNNNQJVZRUHP-UHFFFAOYSA-L manganese(2+);methyl n-[[2-(methoxycarbonylcarbamothioylamino)phenyl]carbamothioyl]carbamate;n-[2-(sulfidocarbothioylamino)ethyl]carbamodithioate Chemical compound [Mn+2].[S-]C(=S)NCCNC([S-])=S.COC(=O)NC(=S)NC1=CC=CC=C1NC(=S)NC(=O)OC WPBNNNQJVZRUHP-UHFFFAOYSA-L 0.000 description 1
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- OINIXPNQKAZCRL-UHFFFAOYSA-L nickel(2+);diacetate;tetrahydrate Chemical compound O.O.O.O.[Ni+2].CC([O-])=O.CC([O-])=O OINIXPNQKAZCRL-UHFFFAOYSA-L 0.000 description 1
- WHGYCGOFTBFDLW-UHFFFAOYSA-L nickel(2+);diperchlorate;hexahydrate Chemical compound O.O.O.O.O.O.[Ni+2].[O-]Cl(=O)(=O)=O.[O-]Cl(=O)(=O)=O WHGYCGOFTBFDLW-UHFFFAOYSA-L 0.000 description 1
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- 150000002825 nitriles Chemical class 0.000 description 1
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- 150000004685 tetrahydrates Chemical class 0.000 description 1
- 125000003831 tetrazolyl group Chemical group 0.000 description 1
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- 125000004149 thio group Chemical group *S* 0.000 description 1
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- ZIBGPFATKBEMQZ-UHFFFAOYSA-N triethylene glycol Chemical compound OCCOCCOCCO ZIBGPFATKBEMQZ-UHFFFAOYSA-N 0.000 description 1
- 125000004385 trihaloalkyl group Chemical group 0.000 description 1
- WVLBCYQITXONBZ-UHFFFAOYSA-N trimethyl phosphate Chemical compound COP(=O)(OC)OC WVLBCYQITXONBZ-UHFFFAOYSA-N 0.000 description 1
- AAAQKTZKLRYKHR-UHFFFAOYSA-N triphenylmethane Chemical compound C1=CC=CC=C1C(C=1C=CC=CC=1)C1=CC=CC=C1 AAAQKTZKLRYKHR-UHFFFAOYSA-N 0.000 description 1
- WFKWXMTUELFFGS-UHFFFAOYSA-N tungsten Chemical compound [W] WFKWXMTUELFFGS-UHFFFAOYSA-N 0.000 description 1
- 229910052721 tungsten Inorganic materials 0.000 description 1
- 239000010937 tungsten Substances 0.000 description 1
- 238000001771 vacuum deposition Methods 0.000 description 1
- 229910052720 vanadium Inorganic materials 0.000 description 1
- GPPXJZIENCGNKB-UHFFFAOYSA-N vanadium Chemical compound [V]#[V] GPPXJZIENCGNKB-UHFFFAOYSA-N 0.000 description 1
- 239000000052 vinegar Chemical class 0.000 description 1
- 235000021419 vinegar Nutrition 0.000 description 1
- YEIGUXGHHKAURB-VAMGGRTRSA-N viridin Chemical compound O=C1C2=C3CCC(=O)C3=CC=C2[C@@]2(C)[C@H](O)[C@H](OC)C(=O)C3=COC1=C23 YEIGUXGHHKAURB-VAMGGRTRSA-N 0.000 description 1
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- YEIGUXGHHKAURB-UHFFFAOYSA-N viridine Natural products O=C1C2=C3CCC(=O)C3=CC=C2C2(C)C(O)C(OC)C(=O)C3=COC1=C23 YEIGUXGHHKAURB-UHFFFAOYSA-N 0.000 description 1
- 239000008096 xylene Substances 0.000 description 1
- 229910052727 yttrium Inorganic materials 0.000 description 1
- VWQVUPCCIRVNHF-UHFFFAOYSA-N yttrium atom Chemical compound [Y] VWQVUPCCIRVNHF-UHFFFAOYSA-N 0.000 description 1
- 239000011787 zinc oxide Substances 0.000 description 1
- 229910052726 zirconium Inorganic materials 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07D—HETEROCYCLIC COMPOUNDS
- C07D213/00—Heterocyclic compounds containing six-membered rings, not condensed with other rings, with one nitrogen atom as the only ring hetero atom and three or more double bonds between ring members or between ring members and non-ring members
- C07D213/02—Heterocyclic compounds containing six-membered rings, not condensed with other rings, with one nitrogen atom as the only ring hetero atom and three or more double bonds between ring members or between ring members and non-ring members having three double bonds between ring members or between ring members and non-ring members
- C07D213/04—Heterocyclic compounds containing six-membered rings, not condensed with other rings, with one nitrogen atom as the only ring hetero atom and three or more double bonds between ring members or between ring members and non-ring members having three double bonds between ring members or between ring members and non-ring members having no bond between the ring nitrogen atom and a non-ring member or having only hydrogen or carbon atoms directly attached to the ring nitrogen atom
- C07D213/60—Heterocyclic compounds containing six-membered rings, not condensed with other rings, with one nitrogen atom as the only ring hetero atom and three or more double bonds between ring members or between ring members and non-ring members having three double bonds between ring members or between ring members and non-ring members having no bond between the ring nitrogen atom and a non-ring member or having only hydrogen or carbon atoms directly attached to the ring nitrogen atom with hetero atoms or with carbon atoms having three bonds to hetero atoms with at the most one bond to halogen, e.g. ester or nitrile radicals, directly attached to ring carbon atoms
- C07D213/72—Nitrogen atoms
- C07D213/76—Nitrogen atoms to which a second hetero atom is attached
- C07D213/77—Hydrazine radicals
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07D—HETEROCYCLIC COMPOUNDS
- C07D213/00—Heterocyclic compounds containing six-membered rings, not condensed with other rings, with one nitrogen atom as the only ring hetero atom and three or more double bonds between ring members or between ring members and non-ring members
- C07D213/02—Heterocyclic compounds containing six-membered rings, not condensed with other rings, with one nitrogen atom as the only ring hetero atom and three or more double bonds between ring members or between ring members and non-ring members having three double bonds between ring members or between ring members and non-ring members
- C07D213/04—Heterocyclic compounds containing six-membered rings, not condensed with other rings, with one nitrogen atom as the only ring hetero atom and three or more double bonds between ring members or between ring members and non-ring members having three double bonds between ring members or between ring members and non-ring members having no bond between the ring nitrogen atom and a non-ring member or having only hydrogen or carbon atoms directly attached to the ring nitrogen atom
- C07D213/60—Heterocyclic compounds containing six-membered rings, not condensed with other rings, with one nitrogen atom as the only ring hetero atom and three or more double bonds between ring members or between ring members and non-ring members having three double bonds between ring members or between ring members and non-ring members having no bond between the ring nitrogen atom and a non-ring member or having only hydrogen or carbon atoms directly attached to the ring nitrogen atom with hetero atoms or with carbon atoms having three bonds to hetero atoms with at the most one bond to halogen, e.g. ester or nitrile radicals, directly attached to ring carbon atoms
- C07D213/78—Carbon atoms having three bonds to hetero atoms, with at the most one bond to halogen, e.g. ester or nitrile radicals
- C07D213/86—Hydrazides; Thio or imino analogues thereof
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07D—HETEROCYCLIC COMPOUNDS
- C07D213/00—Heterocyclic compounds containing six-membered rings, not condensed with other rings, with one nitrogen atom as the only ring hetero atom and three or more double bonds between ring members or between ring members and non-ring members
- C07D213/02—Heterocyclic compounds containing six-membered rings, not condensed with other rings, with one nitrogen atom as the only ring hetero atom and three or more double bonds between ring members or between ring members and non-ring members having three double bonds between ring members or between ring members and non-ring members
- C07D213/04—Heterocyclic compounds containing six-membered rings, not condensed with other rings, with one nitrogen atom as the only ring hetero atom and three or more double bonds between ring members or between ring members and non-ring members having three double bonds between ring members or between ring members and non-ring members having no bond between the ring nitrogen atom and a non-ring member or having only hydrogen or carbon atoms directly attached to the ring nitrogen atom
- C07D213/60—Heterocyclic compounds containing six-membered rings, not condensed with other rings, with one nitrogen atom as the only ring hetero atom and three or more double bonds between ring members or between ring members and non-ring members having three double bonds between ring members or between ring members and non-ring members having no bond between the ring nitrogen atom and a non-ring member or having only hydrogen or carbon atoms directly attached to the ring nitrogen atom with hetero atoms or with carbon atoms having three bonds to hetero atoms with at the most one bond to halogen, e.g. ester or nitrile radicals, directly attached to ring carbon atoms
- C07D213/78—Carbon atoms having three bonds to hetero atoms, with at the most one bond to halogen, e.g. ester or nitrile radicals
- C07D213/86—Hydrazides; Thio or imino analogues thereof
- C07D213/87—Hydrazides; Thio or imino analogues thereof in position 3
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07D—HETEROCYCLIC COMPOUNDS
- C07D401/00—Heterocyclic compounds containing two or more hetero rings, having nitrogen atoms as the only ring hetero atoms, at least one ring being a six-membered ring with only one nitrogen atom
- C07D401/14—Heterocyclic compounds containing two or more hetero rings, having nitrogen atoms as the only ring hetero atoms, at least one ring being a six-membered ring with only one nitrogen atom containing three or more hetero rings
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07D—HETEROCYCLIC COMPOUNDS
- C07D405/00—Heterocyclic compounds containing both one or more hetero rings having oxygen atoms as the only ring hetero atoms, and one or more rings having nitrogen as the only ring hetero atom
- C07D405/02—Heterocyclic compounds containing both one or more hetero rings having oxygen atoms as the only ring hetero atoms, and one or more rings having nitrogen as the only ring hetero atom containing two hetero rings
- C07D405/12—Heterocyclic compounds containing both one or more hetero rings having oxygen atoms as the only ring hetero atoms, and one or more rings having nitrogen as the only ring hetero atom containing two hetero rings linked by a chain containing hetero atoms as chain links
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07D—HETEROCYCLIC COMPOUNDS
- C07D417/00—Heterocyclic compounds containing two or more hetero rings, at least one ring having nitrogen and sulfur atoms as the only ring hetero atoms, not provided for by group C07D415/00
- C07D417/14—Heterocyclic compounds containing two or more hetero rings, at least one ring having nitrogen and sulfur atoms as the only ring hetero atoms, not provided for by group C07D415/00 containing three or more hetero rings
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09B—ORGANIC DYES OR CLOSELY-RELATED COMPOUNDS FOR PRODUCING DYES, e.g. PIGMENTS; MORDANTS; LAKES
- C09B50/00—Formazane dyes; Tetrazolium dyes
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09B—ORGANIC DYES OR CLOSELY-RELATED COMPOUNDS FOR PRODUCING DYES, e.g. PIGMENTS; MORDANTS; LAKES
- C09B50/00—Formazane dyes; Tetrazolium dyes
- C09B50/04—Metal-free formazan dyes
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09B—ORGANIC DYES OR CLOSELY-RELATED COMPOUNDS FOR PRODUCING DYES, e.g. PIGMENTS; MORDANTS; LAKES
- C09B67/00—Influencing the physical, e.g. the dyeing or printing properties of dyestuffs without chemical reactions, e.g. by treating with solvents grinding or grinding assistants, coating of pigments or dyes; Process features in the making of dyestuff preparations; Dyestuff preparations of a special physical nature, e.g. tablets, films
- C09B67/0033—Blends of pigments; Mixtured crystals; Solid solutions
-
- G—PHYSICS
- G11—INFORMATION STORAGE
- G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
- G11B7/00—Recording or reproducing by optical means, e.g. recording using a thermal beam of optical radiation by modifying optical properties or the physical structure, reproducing using an optical beam at lower power by sensing optical properties; Record carriers therefor
- G11B7/24—Record carriers characterised by shape, structure or physical properties, or by the selection of the material
- G11B7/241—Record carriers characterised by shape, structure or physical properties, or by the selection of the material characterised by the selection of the material
- G11B7/242—Record carriers characterised by shape, structure or physical properties, or by the selection of the material characterised by the selection of the material of recording layers
- G11B7/244—Record carriers characterised by shape, structure or physical properties, or by the selection of the material characterised by the selection of the material of recording layers comprising organic materials only
-
- G—PHYSICS
- G11—INFORMATION STORAGE
- G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
- G11B7/00—Recording or reproducing by optical means, e.g. recording using a thermal beam of optical radiation by modifying optical properties or the physical structure, reproducing using an optical beam at lower power by sensing optical properties; Record carriers therefor
- G11B7/24—Record carriers characterised by shape, structure or physical properties, or by the selection of the material
- G11B7/241—Record carriers characterised by shape, structure or physical properties, or by the selection of the material characterised by the selection of the material
- G11B7/242—Record carriers characterised by shape, structure or physical properties, or by the selection of the material characterised by the selection of the material of recording layers
- G11B7/244—Record carriers characterised by shape, structure or physical properties, or by the selection of the material characterised by the selection of the material of recording layers comprising organic materials only
- G11B7/249—Record carriers characterised by shape, structure or physical properties, or by the selection of the material characterised by the selection of the material of recording layers comprising organic materials only containing organometallic compounds
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T428/00—Stock material or miscellaneous articles
- Y10T428/21—Circular sheet or circular blank
Definitions
- the present invention relates to an organometallic complex, and more particularly to a novel formazan metal complex useful as a light absorber or a lightfastness improver for an organic dye compound.
- organic dye compounds having a laser action or organic dye compounds sensitive to laser light have been developed, and in the field of information display, In addition to organic dye compounds having a laser action, demand for organic dye compounds having electroluminescence is rapidly increasing. In recent years, where information recording means and information display means are required to have higher performance, larger capacity, larger capacity, smaller size, and better storage stability. The demand for this has been stronger than ever before, and a wide variety of organic dye compounds have been developed one after another. However, the organic dye compound generally has low light resistance, and when repeatedly exposed to light or emitted, the organic dye compound itself changes, and the intended performance cannot be exhibited.
- optical recording media such as CD-R (write-once memory using compact disc) and DVD-R (write-once memory using digital video disc), which are attracting attention as high-density information recording media.
- Polymethine dyes which are frequently used, are easily oxidized and decomposed by singlet oxygen generated by exposure of the polymethine chain to exposure to reproduction light or environmental light. At least 1 for optical storage media Since a life span of 0 years is required, research on a light fastness improver applied to an organic dye compound in order to achieve the required life span is most active in this field.
- an object of the present invention is to provide an organic dye compound, which can improve light fastness without substantially impairing its desirable optical properties, and has a solubility in an organic solvent and a compatibility with the dye.
- An object of the present invention is to provide a formazan metal complex having excellent performance.
- the term "organic dye compound” refers to any organic dye compound having light-sensitive properties, and uses light-sensitive properties. For example, polymethine dyes such as cyanine dyes Is an important application.
- the present inventors have conducted extensive research and searched for an alkyl group having a pyridine ring at the 5-position in the formazan skeleton and a pyridin ring, furan ring, or linear or branched at the 3-position. Is formed by combining any of When applied to organic dye compounds such as polymethine dyes, formazan metal complexes having a ligand of a mazan compound or a tautomer thereof improve the light resistance without substantially impairing the desired light characteristics. It has also been found that undesirable changes such as deterioration, fading, discoloration, and denaturation due to exposure to reproduction light or ambient light can be effectively suppressed.
- the formazan metal complex of the present invention has high solubility in organic solvents and excellent compatibility with organic dye compounds, even if it is applied to organic dye compounds at a high S degree, it will crystallize itself. It was found that the solubility of the organic dye compound was not impaired.
- the present invention is based on the creation of a novel formazan metal complex and the discovery of its industrially useful properties.
- FIG. 1 is an absorption spectrum of a formazan metal complex according to the present invention.
- FIG. 2 shows the absorption spectrum of another formazan metal complex according to the present invention.
- FIG. 3 is an absorption spectrum of yet another formazan metal complex according to the present invention.
- FIG. 4 is an absorption spectrum of yet another formazan metal complex according to the present invention.
- FIG. 5 is a diagram showing the effect of the light resistance improver of the present invention on CDR. BEST MODE FOR CARRYING OUT THE INVENTION
- the present invention solves the above-mentioned problems by providing a formazan metal complex represented by the general formula 1 or a tautomer thereof as a ligand.
- General formula 1 a formazan metal complex represented by the general formula 1 or a tautomer thereof as a ligand.
- ⁇ 1— ⁇ — N C— ⁇ 2 ⁇ — ⁇ 3
- ⁇ and ⁇ represent a pyridine ring, for example, a fluoro group, a chloro group, a bromo group or a bromo group.
- halogen group methoxy group, ethoxy group, propoxy group, isopropoxy group, butoxy group, tert-butoxy group, nitro group, cyano group, carboxy group, carboxylate group, carboxylic acid group
- Primary or secondary which may have a cyclic structure such as morpholine, virazine, piperidine, cyclohexylamine, etc.
- ⁇ 2 represents a pyridin ring, a furan ring or a linear or branched alkyl group, and the pyridin ring and the furan ring have one or more substituents similar to those in ⁇ , You may have.
- a short chain alkyl group having 1 to 5 carbon atoms such as a pentyl group is selected.
- ⁇ and ⁇ 2 represent a substituent on the pyridin and / or furan ring which is an alkyl group
- One or more hydrogen atoms may be substituted with a halogen group and Z or a hydroxy group, or may be substituted with an alkyl group similar to that in ⁇ and through a methoxy group, a thiocyanate group or a 2-trioxy group. May be.
- examples of the alkyl group substituted through a hydroxy group include a methoxymethyl group, a methoxyxyl group, an ethoxyxyl group, a butoxyl group, an ethoxyxyl group, a phenoxyxyl group, and a methoxyproxyl group.
- Examples of the alkyl group in which a pill group or an ethoxypropyl group is substituted via a thio group include, for example, a methylthioethyl group, an ethylthioethyl group, an ethylthiopropyl group, a phenylethylethyl group, and a methylsulfonylaceyl group.
- an alkyl group substituted through a nitrile group for example, a dimethylaminoethyl group, a dimethylaminoethyl group, a dimethylaminopropyl group, a dimethylamine group.
- a minopropyl group for example, a dimethylaminoethyl group, a dimethylaminoethyl group, a dimethylaminopropyl group, a dimethylamine group.
- ⁇ 3 is an aromatic ring, and is generally a phenyl group, a naphthyl group, an anthracenyl group, an imidazolyl group, a benzimidazolyl group, a pyridyl group, a virazinyl group, a pyrimidinyl group, It is selected from monovalent or polycyclic aromatic compounds such as pyridazinyl group, piperazinyl group, thiazolyl group, benzothiazolyl group, quinolyl group, isoquinolyl group, benzoxyl group and the like.
- Such an aromatic ring may have one or more substituents which are the same or different from each other, and examples of the individual substituents include, for example, a chloro group, a chloro group, a bromo group, and an iodo group.
- substituents include, for example, a chloro group, a chloro group, a bromo group, and an iodo group.
- Halogen groups methoxy groups, ethoxy groups, propoxy groups, isopropoxy groups, butoxy groups, tert-butoxy groups, etc., dimethylamino groups, acetylamino groups, D-methoxyphenylamino groups, etc.
- the formazan metal complex of the present invention in which ⁇ 3 is a phenyl group having a plurality of alkoxy groups, not only has a large light resistance improving ability, but also has a higher solubility in an organic solvent frequently used for producing a optical recording medium.
- the hydrogen atom of Imino groups in the formazan compounds are generally mobility, among formazan reduction Gobutsu represented by the general formula 1, [Phi, and [psi 3 to those having mutually different asymmetric structure , In theory, there will be two tautomers. Unless otherwise specified, the formazan compound referred to in the present invention includes all such tautomers. Further, for the formazan mixture of the present invention which is present as an equilibrium mixture of such tautomers, unless otherwise required, the structure of only one of the tautomers is indicated in accordance with the practice of the art.
- the formazan metal complex of the present invention is such that such a formazan compound or a tautomer thereof is coordinated with a metal (central atom) one or more times.
- the metal serving as the central atom is usually a metal element belonging to Groups 3 to 10 in the periodic table, for example, atoms, oxides, and fluorides, chlorides, and bromides. And those in the form of a halide such as iodide.
- the individual metal elements include, for example, scandium, yttrium, titanium, zirconium, hafnium, vanadium, niobium, tantalum, chromium, molybdenum, tungsten, manganese, technetium, rhenium, iron, cobalt, Nickel, relevidium, rhodium, radium, osmium, iridium, platinum, copper, silver, gold, zinc, cadmium, mercury, etc., but usually nickel, Zinc, cobalt, iron, copper and palladium are frequently used.
- Desirable is a formazan metal complex having a divalent metal (M) as a central atom, in particular, a complex represented by the general formula (2).
- M divalent metal
- Fz is a formazan compound represented by the general formula 1 or a tautomer thereof
- m is a formazan compound or a formazan compound as a ligand (Fz) coordinated to M.
- X represents a counterpart, and ⁇ is the number of X to keep the charge in the complex.
- the formazan metal complex of the present invention usually takes a -valent, zero-valent or monovalent charge, but when the charge is zero-valent, n is zero, and therefore, X does not exist.
- counter ion X for example, hexafluoric acid, fluoride, hydrochloric, bromate, iodate, phosphate, perchlorate, periodate, antimonate hexafluoride, Hexafluoride stannate ion, borohydrofluorate ion, tetrafluoroborate ion, thiocyanate ion, benzenesulfonate ion, naphthalenesulfonate ion, benzenesulfonate ion, alkyl carboxylate ion, trihaloalkyl
- examples include anions such as carboxylate ions, alkyl sulfate ions, trihaloalkyl sulfate ions, and nicotinic acid ions, and cations such as ammonium ions and tetraalkylammonium ions.
- ligand in the formazan metal complex of the present invention include, for example, formazan compounds represented by Chemical Formulas 1 to 41 and tautomers thereof.
- the formazan metal complex of the present invention is described, for example, in Akira 'Petitumi et al.,' Analytical Sciences ', Vol. 7, 119-124 (1991), Akira' Petitumi et al. Sciences, Vol. 7, pp. 549 to 462 (1991), Akira Kawase, Analytical Chemistry, Vol. 16, 1, 364 to 1, 369 (1 967), and can be prepared according to the methods described in JP-A-62-144977. If emphasis is placed on economics, it is advantageous to use a formazan compound represented by the general formula 1 or a tautomer thereof as an intermediate, which is appropriately reacted with a metal salt.
- the formazan compound represented by the general formula 1 is converted into, for example, methanol, ethanol, 1,4-dioxane, acetone, acetonitrile, tetrahydrofuran, tetrahydrofuran.
- Dissolve in non-aqueous solvents such as pyran, formamide, N-methylformamide, N, N-dimethylformamide, dimethylsulfoxide, etc. Or dissolved in a mixture of water and non-aqueous solvent, PT JP / 5
- metal salts such as the above-mentioned metal salts, chlorides and perchlorates are used as the metal salts, and individual metal salts include, for example, nickel acetate, tetrahydrate, and anhydrous metal. Copper acetate, nickel chlorideHexahydrate, ferric chloridedihydrate, cobalt chlorideHexahydrate, anhydrous ferrous chloride, nickel perchloratehexahydrate, copper perchlorate ⁇ Hexahydrate and the like.
- the thus-obtained formazan metal complex of the present invention may be used as it is in a reaction mixture depending on the application.
- a reaction mixture usually, for example, dissolution, liquid separation, gradient, extraction, filtration, and purification
- Purified by ordinary methods used for the purification of related compounds such as thin-layer chromatography, column chromatography, gas chromatography, high-performance liquid chromatography, distillation, crystallization, sublimation, etc.
- these purification methods are applied in combination.
- the formazan metal complex of the present invention is, for example, for example, when used as a lightfastness improver in media, dye lasers, silver halide photography, or as a light absorber in solar cells, distillation, crystallization and It is desirable to purify it by a method such as ⁇ or sublimation.
- the formazan metal complex of the present invention When the formazan metal complex of the present invention is applied to an organic dye compound such as a polymethine dye, the light resistance is improved without substantially impairing the desired light properties, and the formazan metal complex can be used for natural light and artificial light. Effectively suppresses undesired changes such as dye deterioration, fading, discoloration, and denaturation due to exposure to ambient light. Therefore, the formazan metal complex of the present invention has a wide variety of uses as an agent for improving the light resistance of an organic dye compound in various fields in which an undesirable change of the organic dye compound due to such exposure to ambient light is undesirable.
- the formazan metal complexes of the present invention have high compatibility with polymethine dyes such as cyanine dye, and have 2, 2, 3, 3-te in comparison with conventionally known formazan metal complexes.
- the solubility in organic solvents such as trafluoro-1-propanol (hereinafter abbreviated as “TF II”), ethyl acetate solvent and diacetanol is remarkably high.
- organic solvents are used.
- the ethyl formazan metal complex of the present invention is more than 2 mg Z ml, and depending on the metal complex, it can reach more than 20 mg / ml. Shows the solubility.
- the field to which the lightfastness improver according to the present invention can be most advantageously applied is, for example, the field of optical recording media such as CD-R and DVD-R.
- the lightfastness improver according to the present invention is a polymethine dye having an amidinium ion chromophore frequently used in such optical recording media, in particular, two basic heterocycles independent of each other are formed of an amidinium ion chromophore.
- the optical recording medium according to the present invention comprising a polymethine dye such as a cyanine dye and a formazan metal complex as a lightfastness improving agent for an organic dye compound can be used even if the light is repeatedly emitted 15 times when reproducing recorded information. Since the reflectivity of the 11 unmarked portions on the i-side is unlikely to decrease, there is a feature that an error in reading information is unlikely to occur.
- the lightfastness improver according to the present invention includes a polymethine dye having an absorption maximum in the near-infrared region, which is said to be particularly easily decomposed by 15 light, and a polymethine dye having an absorption maximum in the blue region of a shorter wavelength.
- the choice of polymethine dyes that can be used for optical recording media can be greatly expanded by using the lightfastness improver according to the present invention.
- the formazan metal complex of the present invention has an absorption maximum at a wavelength similar to the absorption maximum of the indrenine-based pentamethine cyanine dye frequently used for CD-R, or at a shorter wavelength side close to the wavelength.
- the molecular extinction coefficient (hereinafter sometimes abbreviated as “ ⁇ ”) at the absorption maximum is also relatively narrow, so that when used in combination with such a cyanine dye, the reflection characteristics of the cyanine dye are reduced. Without this, the light absorption characteristics can be complemented.
- the light fastness improver according to the present invention requires special treatment and operation when used in an optical recording medium. Since it is not necessary, the optical recording medium according to the present invention can be manufactured according to a conventionally known optical recording medium. For example, one or more organic dye compounds as a light absorbing agent may be appropriately combined and blended in order to adjust the reflectance and the light absorptivity in the recording layer. In addition, if necessary, blend one or more of general-purpose binders, dispersants, flame retardants, lubricants, antistatic agents, surfactants, plasticizers, etc., and then dissolve in organic solvents.
- the solution is evenly applied to one side of the substrate by, for example, spray S method, dipping method, roller coating method, spin coating method, etc.
- spray S method dipping method
- roller coating method spin coating method
- UV rays for the purpose of forming a reflective layer that adheres to the recording layer made of a metal such as aluminum, cobalt, tin, nickel, iron, and chromium or their alloys, and for protecting the recording layer from scratches, dust, dirt, etc.
- a protective layer that adheres to the reflective layer is formed by further applying a hardening resin or the like, and curing by applying light.
- an imidazoline ring an imidazole ring, a benzoimidazole ring, an ⁇ -naphthimidazo ring, which is the same or different from each other, is usually used at both ends of a polymethine chain having up to 9 methine groups, preferably 1 to 7 methine groups.
- polymethine dyes such as cyanine dyes, merocyanine dyes, oxanol dyes, styryl dyes, azurenium dyes, squarylium dyes, pyrylium dyes, thiopyriium dyes, and phenanthrene dyes
- organic dye compound used in combination with the formazan metal complex of the present invention those having an absorption maximum in a visible region in a thin film state, particularly, at a wavelength of 400 to 850 nm, are desirable.
- the anion thereof may be appropriately determined in consideration of the solubility of the dye.
- fluoride ions, chloride ions, bromine ions, iodine ions, and perchlorine ions are used.
- Inorganic acid anions such as acid ion, «acid ion, borohydrofluoric acid ion, tetrafluoroborate ion, etc., thiocyanate ion, benzenesulfonic acid ion, naphthalenesulfonic acid ion, p-toluenesulfonic acid ion,
- Organic acid anions such as alkyl sulfonate ion, benzene carboxylate ion, alkyl carboxylate ion, trihaloalkyl carboxylate ion, alkyl sulfate ion, trihaloalkyl sulfate ion, nicotinate ion, etc.
- Organometallic complexes such as
- the light fastness improver according to the present invention may be used alone or, if necessary, one or more of the known light fastness improvers within a range not departing from the object of the present invention.
- known lightfastness improvers that can be used in combination include, for example, nitroso compounds such as nitrosodiphenylamine, nitrosoline, nitrosophenol, and nitrosonaphthol, tetrathanoquinodimethane compounds, and diimmononitrile.
- Mole preferably in the range of 0.05 to 5 moles.
- the amount of the lightfastness improver according to the present invention is below this range, the effect of improving the lightfastness will not be exhibited. May decrease, and it is usually preferable to use the above range.
- TFP frequently used for producing an optical recording medium, or pentane, hexane, cyclohexane, petroleum ether, petroleum benzine, isooctane, octane, benzene , Toluene, xylene and other hydrocarbons, carbon tetrachloride, chloroform, 1,2-dichloroethane, 1,2-dibromoethane, trichloroethylene, tetrachloroethylene, benzene, bromobenzene, ⁇ - Halides such as benzene with dichloride, methanol, ethanol, 1-propanol, 2-propanol, 2,2,2-trifluroethanol, 1-butanol, isobutyl alcohol
- Midazoles acetate tritol, propionitrile, succinonitrile, benzonitrile, and other nitriles, nitromethane, nitrobenzene, and other nitro compounds, ethylenediamine, viridin, pyridine
- amines such as peridine, morpholine, and N-methylpyrrolidone
- sulfur-containing compounds such as dimethylsulfoxide and sulfolane.
- the formazan compound of the present invention has a high solubility in an easily evaporable organic solvent such as, for example, TFP, methyl cellosolve, ethyl ethyl solvent, diacetone alcohol, and the like, and the formazan metal complex of the present invention is dissolved in such a solvent.
- an easily evaporable organic solvent such as, for example, TFP, methyl cellosolve, ethyl ethyl solvent, diacetone alcohol, and the like
- the formazan metal complexes of the present invention are non-halogen solvents, for example, cellosolves such as methyl sorb and ethyl sorb, alcohols such as methanol, diacetone alcohol, isopropyl alcohol, and the like. In addition, it exhibits good solubility in ketones such as ethyl methyl ketone and cyclohexanone.
- cellosolves such as methyl sorb and ethyl sorb
- alcohols such as methanol, diacetone alcohol, isopropyl alcohol, and the like.
- ketones such as ethyl methyl ketone and cyclohexanone.
- the substrate may be a general-purpose substrate, and is usually formed by an extrusion molding method, an injection molding method, an extrusion injection molding method, a photopolymer method (2 ⁇ ⁇ ⁇ ⁇ method), a heat-curing integral molding method, a light curing integral molding method, or the like.
- the material may be formed into a disk with a diameter of 12 cm and a thickness of 0.6 mm or 1.2 mm, for example. Laminated and used.
- Substrate materials include glass, ceramic, polymethyl methacrylate, polycarbonate, polystyrene (styrene copolymer), polymethyl pentene, polyester, polyolefin, polyimide, and polyether.
- the lightfastness improver according to the present invention is usually prepared as a solution of the organic solvent as described above together with an organic dye compound as a light absorber, and the dried recording layer has a thickness of 10 to 1, OOOnm. Preferably, it is uniformly applied to the substrate so as to have a thickness of 20 to 500 nm.
- an undercoat layer may be provided on the substrate as necessary for the purpose of protecting the substrate, improving the adhesiveness, or the like. Examples include polymeric materials such as ionomer resins, polyamide resins, vinyl resins, natural resins, silicon, and liquid rubber.
- cellulose esters such as nitrocellulose, cellulose phosphate, cellulose sulfate, cellulose acetate, cellulose propionate, cellulose phosphate, cellulose palmitate, cellulose sulfate and cellulose propionate;
- Cellulose ethers such as methylcellulose, ethylcellulose, propylcellulose and butylcellulose, polystyrene, polyvinylchloride, pinylpolynitrate, polyvinylacetal, polyvinylbutyral, polyvinylformal, polyvinylalcohol, polyvinylpyrroli Vinyl resins such as styrene, styrene-butadiene copolymer, styrene-acrylonitrile copolymer, styrene-butadiene-acrylonitrile copolymer, vinyl chloride monovinyl chloride Rukoporima a copolymer resin such as anhydrous maleic phosphate cop
- the optical recording media such as CDR and DVDR according to the present invention! 3 ⁇ 4
- the medium is, for example, an AIG aln P system, a GaAs P system, a G A IA s system, an In GA P system, an In GaAs A system or an In GaAs AIP semiconductor.
- Various types of information can be written at high density using laser light or a laser beam with a wavelength of 600 to 830 nm, such as a YAG laser combined with a second harmonic generation element (SHG element).
- SHG element second harmonic generation element
- the information is written in the optical recording medium according to the present invention, though it depends on the type and the amount of the cyanine pigment used in combination with the light resistance improving agent of the present invention.
- the laser output at the time is relatively high, exceeding the threshold of the energy at which the pit is formed, while the output when reading the written information is below the cabinet value and relatively low. It is desirable to set.
- writes at or above I mW typically in the range of 3 to 3 O mW; reads and scales at outputs below I mW, typically in the range of 0.1 to 0.5 mW .
- the recorded information is read by an optical pickup by detecting a change in the amount of reflected light or the amount of transmitted light between a pit on the recording surface of the optical recording medium and a portion where the pit is not formed.
- optical recording medium according to the present invention can record character information, image information, audio information, and other digital information at high density, It is extremely useful as an iS medium for consumer and business use for managing data and computer programs ii.
- Examples of the types of business and information that can be used in the optical recording medium according to the present invention include construction, construction in civil engineering, civil engineering drawings, maps, roads, river ledgers, apachiua cards, architectural drawings, disaster prevention.
- Patent gazettes weather charts, data analysis records, customer files, legal precedents, etc., membership in various organizations, past books, work records, competition records, tournament records, etc., tourism information in tourism, traffic information, etc.
- In-house publication index newspaper and magazine information, person files, sports journals ii, telop files, broadcast scripts, etc. in government-related maps, roads, river ledgers, fingerprint files, resident lists, various applications and notifications ⁇ Licensing ⁇ Permit documents, statistical data, public data, etc.
- the optical recording medium of the present invention which can be written only once, has the record information changed.
- optical recording medium includes compact discs, digital video discs, laser discs, MDs (information recording systems using magneto-optical discs), CDVs (laser discs using compact discs), DAT (information recording system using magnetic tape), CD-ROM (read-only memory using compact disk), DVD-ROM (read-only memory using digital video disk), DVD-RAM (digital video Editable, proofreading, digital photos, movies, computer graphics, publications, broadcasts, commercial messages, video software, audio software, game software, etc.
- external computers for large computers and car navigation systems It includes use as grams recording means.
- the use of the light fastness improver of the present invention is by no means limited to optical recording media.
- the lightfastness improver according to the present invention in addition to optical recording media, dislikes undesirable changes such as deterioration, fading, discoloration, and denaturation of organic dye compounds due to S light to ambient light such as natural light or artificial light.
- photopolymerizable compositions, photographs, dye lasers, electroluminescent devices, panels and filters for information display devices, plastics, rubber, paper, cloth, wood, paints, dyes, brighteners, scintillators, fluorescence analysis It can be used very advantageously also in reagents and the like.
- an organic dye compound used as a photosensitizer for polymerizing a polymerizable compound by irradiating the lightfastness improver of the present invention with light When applied to organic dye compounds used as chemical sensitizers for controlling the photosensitivity of dyes, and also to organic dye compounds used as laser active substances in dye lasers, the light resistance of those organic dye compounds is It can improve or adjust the sensitivity to light.
- formazan metal complexes of the present invention have an absorption maximum in the visible region, for example, a photosensitizer for exposing a polymerizable compound to visible light to polymerize the compound, It is extremely useful as a dye for dyeing clothing.
- the formazan metal complex of the present invention may be used, if necessary, together with one or more other light absorbing agents that absorb light in the ultraviolet region and the infrared region, in general clothing, other than clothing, for example, drape, Lace, casement, print, venetian blind, roll screen, shutter, goodwill, blanket, futon, futon side, duvet cover, futon cotton, sheets, cushion, pillow, pillowcase, cushion, mat , Carpets, sleeping bags, tents, car interior materials, window glazing, window glass, etc., construction diapers, disposable diapers, diaper covers, eyeglasses, monocles, hornets, etc., shoe insoles, shoes Lining, land, furoshiki, umbrellas, umbrellas, stuffed animals, lighting equipment, such as cathode ray tube displays, liquid crystal displays, A class of filters for video display devices such as television receivers and personal computers using field emission displays, plasma displays, etc., nonels and screens, sunglasses, sunroofs, sun visors, PET bottles, storage, storage,
- the formazan compound and the tautomer thereof of the present invention are extremely useful as intermediates for efficiently producing the formazan metal complex.
- the formazan compound of the present invention in which ⁇ , ⁇ 2 and / or ⁇ 3 in Formula 1 has a propyloxyl group and / or a sulfonic acid group and a tautomer thereof include, for example, zinc oxide and titanium oxide. It has excellent adsorptivity to optical semiconductors mainly composed of such materials, and efficiently absorbs a wide range of light in the visible region. It is also useful as a light absorber in batteries.
- Example 1 Formazan compound
- a reaction vessel 100 ml of a 1,4-diluted xananomethanol mixed solution (volume ratio 3: 2) was taken, and 2.0 g of the hydrazone compound represented by the chemical formula 42 obtained above was added. And 0.93 g of aniline, respectively, and with stirring, Furthermore, after adding 2.5 ml of jg hydrochloric acid and 5 ml of water, the mixture was cooled to 0 to 3 ° C. While maintaining this temperature, 5 ml of an aqueous solution of 0.72 mg of sodium nitrite was added dropwise over about 20 minutes while stirring, and 1.38 g of sodium hydroxide was further added.
- the melting point of the formazan compound of this example was 167 ° C. to 1771 ° C. as measured by a conventional method, and showed a maximum absorption at a wavelength of 461 nm when measured in methylene chloride.
- Example 2 Formazan compound
- a hydrazone compound represented by a chemical formula 43 was obtained in the same manner as in Example 1 except that 5-methyltrimethyl-2-pyridylhydrazine was used instead of 2-pyridylhydrazine in Example 1. .
- the melting point of the formazan compound of this example was found to be 70 to 73 ° C, and the absorption maximum was observed at a wavelength of 472 nm when measured in a methylene chloride. .
- Example 3 Formazan compound
- reaction vessel take 1,000 ml of N, N-dimethylformamide, and add 4.8 g of the hydrazone compound represented by the chemical formula 44 obtained above and 2,5-dimethyloxylinine. After adding 3.1 g each, and further adding 5 ml of hydrochloric acid, 6 ml of triethylamine, and 10 ml of water, sodium nitrite is maintained while stirring at 0 to 5 ° C. Lithium 1.4 4 g aqueous solution 6 m I was added dropwise over about 30 minutes.
- the melting point of the formazan compound of this example was 1339 to 141 when measured by a conventional method, and showed a maximum absorption at a wavelength of 4222 nm when measured in methylene chloride.
- Example 4 Formazan compound
- a hydrazone compound represented by a chemical formula 45 was obtained in the same manner as in Example 3 except that 2-fluoridaldehyde was used instead of 2-pyridylaldehyde in Example 3.
- the melting point of the formazan compound of this example was 159 to 160 ° C. as measured by a conventional method, and showed a maximum absorption at a wavelength of 467 nm when measured in methylene chloride.
- Example 5 Formazan metal complex
- the melting point of the formazan metal complex of this example was found to be 290 ° C. to 295 ° C. according to a conventional method, and showed an absorption maximum at a wavelength of 599 nm when measured in methylene chloride.
- Figure 1 shows the absorption spectrum of the formazan metal complex of this example.
- Example 6 Formazan metal complex
- the decomposition point of the formazan metal complex of this example was 22 to 230 when measured by a conventional method, and when measured in methylene chloride, it showed an absorption maximum at a wavelength of 629 nm.
- FIG. 2 shows the absorption spectrum of the formazan metal complex of this example.
- Example 7 Formazan gold ⁇ complex
- the melting point of the formazan metal complex of this example was 230 to 23 ° C. as measured by a conventional method, and showed a maximum absorption at a wavelength of 611 nm when measured in methylene chloride.
- Figure 3 shows the absorption spectrum of the formazan metal complex of this example.
- Example 8 Formazan metal complex
- the melting point of the formazan metal complex of this example was 21-2 ° C.-5 ° C. as measured by a conventional method, and showed a maximum absorption at a wavelength of 67 O nm when measured in methylene chloride. .
- Fig. 4 shows the absorption spectrum of the formazan metal complex of this example.
- the formazan metal complexes of the present invention including those having ligands of the formazan compounds represented by Chemical Formulas 1 to 41, have some differences in the charging conditions and yields, It can be produced by the methods of Examples 1 to 8, or according to those methods.
- the transmittance (wavelength) at a wavelength of 700 nm of the glass substrate thus coated with the light absorbing agent was measured according to a conventional method.
- the glass substrate was fixed at a distance of 7 cm from the 50 OW xenon lamp, and the substrate was exposed to the xenon lamp for 25 minutes while blowing cool air over the substrate, and the transmittance (T) at a wavelength of 700 nm was measured. It was measured again.
- Their transmittance T and T. was substituted into Equation 1 for each formazan metal complex, and the residual ratio (%) of the cyanine dye was calculated.
- Residual rate of photosensitive dye (3 ⁇ 4) X 100
- the nickel complex having any of the formazan compounds shown in Table 1 as a ligand was subjected to measurement of TFP and solubility (20 ° C.) in an ethyl acetate solvent according to a conventional method. Simultaneously, the solubility was similarly measured for a known nickel complex having a formazan compound represented by Chemical Formulas 48 and 49 as a ligand. The results are shown in Table 1.
- the solubility of the control nickel complex in the Echilse mouth solve was at most about 1.2 mg ZmI, whereas the formazan metal complex of the present invention exceeded that. High solubility (> 2.1 mgm I).
- the solubility of the control nickel complex was about 2 to 21 mg ZmI, whereas many of the formazan metal complexes of the present invention used in the tests far exceeded the solubility. It showed high solubility (more than 36 mg Z ml).
- Echilse mouth solve is expected as an environmentally friendly organic solvent in the field of optical recording media.
- TFP is a typical organic solvent used when applying a polymethine dye such as a cyanine dye to a substrate of an optical recording medium.
- each of the formazan metal complexes of the present invention subjected to the measurement has a relatively large molecular extinction coefficient and is a light absorber that absorbs visible light. Is also useful.
- Example 11 1 Optical recording medium
- the cyanine dyes represented by Chemical Formula 46 and Chemical Formula 47 were added to TFP as light absorbers to a final concentration of 1.5% (w / w), respectively.
- a polycarbonate-made disc-shaped substrate (diameter: 12 cm; diameter: 12 cm, in which a concave portion indicating a synchronization signal, a track and the address of a sector) is photographed on the inner circumference of the track in a conventional manner.
- the film was spin-coated uniformly on one side (thickness: 1.2 mm) and dried to form a recording layer having a thickness of 100 nm. Thereafter, gold is vacuum-deposited on the substrate to form a reflective layer having a thickness of 100 nm which is in close contact with the recording layer, and a known ultraviolet-curing resin (trade name “Unidick SD”) is formed on the reflective layer. 17 ”(manufactured by Dainippon Ink and Chemicals, Inc.) was evenly spin-coated, and then irradiated with light to form a protective layer in close contact with the reflective layer, producing eight types of CD-Rs.
- the oscillation wavelength was 780 ⁇ .
- the oscillation wavelength was 780 ⁇ .
- the solid line containing “ ⁇ ” indicates the temporal change in the amplitude of the CD-R using the lightfastness improver
- the solid line containing “mouth” indicates the lightfastness improver. Shows the temporal change of amplitude in CD-R not used.
- CD-R using a formazan compound other than the formazan compound represented by the chemical formula 3 shows excellent results similar to those using the formazan compound represented by the chemical formula 3. Obtained.
- the CD-R of this example has a recording capacity exceeding 600 ⁇ ⁇ , and by using an optical pickup with a laser beam with a wavelength of 780 ⁇ m, Information, image information, audio information and other digital information can be written at high density.
- the CD-R of this example has a useful life required for optical recording media in general, and once recorded information can be returned and reproduced or exposed to ambient light for a long period of time, It can be read accurately for over 10 years.
- the present invention is based on the creation of a novel formazan metal complex and the discovery of its industrially useful properties.
- an organic dye compound such as a cyanine dye
- the light resistance is remarkably improved without substantially impairing the desired optical characteristics, and the organic dye compound is deteriorated or discolored by exposure. Effectively suppresses undesired changes such as discoloration and denaturation.
- the formazan metal complex of the present invention has remarkably excellent solubility in an organic solvent as compared with a conventionally known formazan metal complex, and has good compatibility with a polymethine dye such as a cyanine dye. Very high.
- the lightfastness improver according to the present invention dislikes these changes in the organic dye compound, for example, optical recording medium, photosensitizer, chemical sensitizer, dye laser, electric field It can be extremely advantageously applied to light-emitting elements, panels and filters for information display devices, plastics, rubber, paper, cloth, wood, paints, dyes, brighteners, scintillators, and fluorescent analysis reagents.
- the optical recording medium II containing the formazan metal complex of the present invention is not likely to cause errors in reading recorded information even when stored for a long period of time after being repeatedly reproduced, so that character information, image information, It has a wide range of uses as an excellent storage medium for recording voice information and other digital information at high density.
- the formazan metal complex of the present invention can be advantageously used in a wide variety of articles as a photosensitizer, a chemical sensitizer, a dye, and a light absorber.
- a useful formazan metal complex can be easily produced in a desired amount by a method of appropriately reacting a metal salt with a formazan compound or a tautomer thereof according to the present invention.
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- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Optical Record Carriers And Manufacture Thereof (AREA)
- Plural Heterocyclic Compounds (AREA)
- Thermal Transfer Or Thermal Recording In General (AREA)
- Treatments For Attaching Organic Compounds To Fibrous Goods (AREA)
- Color Printing (AREA)
Description
Claims
Priority Applications (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US09/762,535 US6645594B1 (en) | 1999-06-09 | 2000-01-06 | Formazan metal complex |
EP00931653A EP1103547B1 (en) | 1999-06-09 | 2000-06-01 | Formazan metal complex |
DE60029293T DE60029293T2 (de) | 1999-06-09 | 2000-06-01 | Formazan-metallkomplexe |
Applications Claiming Priority (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP16303699 | 1999-06-09 | ||
JP11/163036 | 1999-06-09 | ||
JP2000/145313 | 2000-05-17 | ||
JP2000145313 | 2000-05-17 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2000075111A1 true WO2000075111A1 (fr) | 2000-12-14 |
Family
ID=26488614
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/JP2000/003565 WO2000075111A1 (fr) | 1999-06-09 | 2000-06-01 | Complexe metallique de formazan |
Country Status (6)
Country | Link |
---|---|
US (1) | US6645594B1 (ja) |
EP (1) | EP1103547B1 (ja) |
AT (1) | ATE332893T1 (ja) |
DE (1) | DE60029293T2 (ja) |
TW (1) | TW539671B (ja) |
WO (1) | WO2000075111A1 (ja) |
Cited By (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US6525181B2 (en) | 2000-02-23 | 2003-02-25 | Kabushiki Kaisha Hayashibara Seibutsu Kagaku Kenkyujo | Cyanine dyes |
US7354694B1 (en) | 1999-12-02 | 2008-04-08 | Kabushiki Kaisha Hayashibara Seibutsu Kagaku Kenkyuko | Styryl dye |
US7439008B2 (en) | 2004-01-30 | 2008-10-21 | Ricoh Company, Ltd. | Optical recording medium, and, method and apparatus for optical recording and reproducing using optical recording medium |
US20090324891A1 (en) * | 2008-06-30 | 2009-12-31 | Kabushiki Kaisha Toshiba | Recordable information recording medium |
US8049018B2 (en) | 2006-03-13 | 2011-11-01 | Kabushiki Kaisha Hayashibara Seibutsu Kagaku Kenkyujo | Methine dyes and uses of the same |
US8350015B2 (en) | 2004-02-27 | 2013-01-08 | Kabushiki Kaisha Hayashibara Seibutsu Kagaku Kenkyujo | Cyanine dye |
Families Citing this family (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
TW572969B (en) * | 2000-02-10 | 2004-01-21 | Hayashibara Biochem Lab | Trimethine cyanine dye, light absorbent, light-resistant improver and optical recording medium containing same, and process for producing same |
US6794005B2 (en) * | 2002-02-12 | 2004-09-21 | Ricoh Company, Ltd. | Optical recording medium, optical recording method and optical recording device |
JP4137691B2 (ja) * | 2003-04-30 | 2008-08-20 | 株式会社リコー | 光記録媒体 |
JP4327668B2 (ja) * | 2004-06-25 | 2009-09-09 | 太陽誘電株式会社 | 光情報記録媒体 |
Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
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JPS5948189A (ja) * | 1982-09-10 | 1984-03-19 | Ricoh Co Ltd | 熱転写記録材料 |
EP0729139A1 (en) * | 1995-02-27 | 1996-08-28 | TDK Corporation | Optical recording medium using formazan metal complex dye and photo-stabilizing method |
JPH08306516A (ja) * | 1995-04-28 | 1996-11-22 | Ricoh Co Ltd | 有機磁性材料、その製法およびそれを含む磁性トナーならびに磁性インク |
EP0837462A1 (en) * | 1996-10-16 | 1998-04-22 | Eastman Kodak Company | Optical recording elements having recording layers containing mixtures of low K metallized formazan and cyanine dyes |
JPH11193266A (ja) * | 1997-04-16 | 1999-07-21 | Konica Corp | ハロゲン化銀写真感光材料及びその処理方法、並びに、ホルマザン化合物 |
Family Cites Families (7)
Publication number | Priority date | Publication date | Assignee | Title |
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JPS60122195A (ja) | 1983-12-07 | 1985-06-29 | Ricoh Co Ltd | 熱転写記録組成物 |
US5547728A (en) * | 1994-09-23 | 1996-08-20 | Eastman Kodak Company | Optical recording elements having recording layers containing mixtures of formazan and cyanine dyes |
US5695843A (en) * | 1996-09-27 | 1997-12-09 | Eastman Kodak Company | Mixtures of symmetrical and unsymmetrical nickel formazan dyes |
US5773193A (en) * | 1996-10-16 | 1998-06-30 | Eastman Kodak Company | Optical recording layers containing no k metallized formazan dyes mixed with symmetrical and unsymmetrical cyanine dyes |
US5731054A (en) * | 1996-10-16 | 1998-03-24 | Eastman Kodak Company | Mixtures of low K metallized formazan dyes with symmetrical and unsymmetrical cyanine dyes |
JP3456621B2 (ja) | 1997-06-07 | 2003-10-14 | 株式会社リコー | 光記録媒体 |
KR20010089419A (ko) | 1999-09-14 | 2001-10-06 | 하야시바라 켄 | 스티릴색소 |
-
2000
- 2000-01-06 US US09/762,535 patent/US6645594B1/en not_active Expired - Fee Related
- 2000-06-01 EP EP00931653A patent/EP1103547B1/en not_active Expired - Lifetime
- 2000-06-01 WO PCT/JP2000/003565 patent/WO2000075111A1/ja active IP Right Grant
- 2000-06-01 AT AT00931653T patent/ATE332893T1/de not_active IP Right Cessation
- 2000-06-01 DE DE60029293T patent/DE60029293T2/de not_active Expired - Fee Related
- 2000-06-05 TW TW089110984A patent/TW539671B/zh not_active IP Right Cessation
Patent Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5948189A (ja) * | 1982-09-10 | 1984-03-19 | Ricoh Co Ltd | 熱転写記録材料 |
EP0729139A1 (en) * | 1995-02-27 | 1996-08-28 | TDK Corporation | Optical recording medium using formazan metal complex dye and photo-stabilizing method |
JPH08306516A (ja) * | 1995-04-28 | 1996-11-22 | Ricoh Co Ltd | 有機磁性材料、その製法およびそれを含む磁性トナーならびに磁性インク |
EP0837462A1 (en) * | 1996-10-16 | 1998-04-22 | Eastman Kodak Company | Optical recording elements having recording layers containing mixtures of low K metallized formazan and cyanine dyes |
JPH11193266A (ja) * | 1997-04-16 | 1999-07-21 | Konica Corp | ハロゲン化銀写真感光材料及びその処理方法、並びに、ホルマザン化合物 |
Cited By (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US7354694B1 (en) | 1999-12-02 | 2008-04-08 | Kabushiki Kaisha Hayashibara Seibutsu Kagaku Kenkyuko | Styryl dye |
US6525181B2 (en) | 2000-02-23 | 2003-02-25 | Kabushiki Kaisha Hayashibara Seibutsu Kagaku Kenkyujo | Cyanine dyes |
US7439008B2 (en) | 2004-01-30 | 2008-10-21 | Ricoh Company, Ltd. | Optical recording medium, and, method and apparatus for optical recording and reproducing using optical recording medium |
US8350015B2 (en) | 2004-02-27 | 2013-01-08 | Kabushiki Kaisha Hayashibara Seibutsu Kagaku Kenkyujo | Cyanine dye |
US8049018B2 (en) | 2006-03-13 | 2011-11-01 | Kabushiki Kaisha Hayashibara Seibutsu Kagaku Kenkyujo | Methine dyes and uses of the same |
US20090324891A1 (en) * | 2008-06-30 | 2009-12-31 | Kabushiki Kaisha Toshiba | Recordable information recording medium |
Also Published As
Publication number | Publication date |
---|---|
EP1103547B1 (en) | 2006-07-12 |
EP1103547A4 (en) | 2002-03-06 |
DE60029293D1 (de) | 2006-08-24 |
EP1103547A1 (en) | 2001-05-30 |
US6645594B1 (en) | 2003-11-11 |
ATE332893T1 (de) | 2006-08-15 |
TW539671B (en) | 2003-07-01 |
DE60029293T2 (de) | 2007-07-19 |
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