WO2004085360A1 - 長い直線的共役系構造部分を持つベンゼン誘導体、その製造方法、液晶性材料及び電荷輸送材料 - Google Patents
長い直線的共役系構造部分を持つベンゼン誘導体、その製造方法、液晶性材料及び電荷輸送材料 Download PDFInfo
- Publication number
- WO2004085360A1 WO2004085360A1 PCT/JP2004/003859 JP2004003859W WO2004085360A1 WO 2004085360 A1 WO2004085360 A1 WO 2004085360A1 JP 2004003859 W JP2004003859 W JP 2004003859W WO 2004085360 A1 WO2004085360 A1 WO 2004085360A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- general formula
- benzene derivative
- long linear
- conjugated structure
- linear conjugated
- Prior art date
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- 239000012299 nitrogen atmosphere Substances 0.000 description 1
- 229940078552 o-xylene Drugs 0.000 description 1
- JRZJOMJEPLMPRA-UHFFFAOYSA-N olefin Natural products CCCCCCCC=C JRZJOMJEPLMPRA-UHFFFAOYSA-N 0.000 description 1
- 150000007530 organic bases Chemical class 0.000 description 1
- 229920000620 organic polymer Polymers 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 229950000688 phenothiazine Drugs 0.000 description 1
- 229910052698 phosphorus Inorganic materials 0.000 description 1
- 239000011574 phosphorus Substances 0.000 description 1
- 229910052697 platinum Inorganic materials 0.000 description 1
- 229920006254 polymer film Polymers 0.000 description 1
- 239000003505 polymerization initiator Substances 0.000 description 1
- 239000011736 potassium bicarbonate Substances 0.000 description 1
- 229910000028 potassium bicarbonate Inorganic materials 0.000 description 1
- 235000015497 potassium bicarbonate Nutrition 0.000 description 1
- 229910000027 potassium carbonate Inorganic materials 0.000 description 1
- 235000011181 potassium carbonates Nutrition 0.000 description 1
- RPDAUEIUDPHABB-UHFFFAOYSA-N potassium ethoxide Chemical compound [K+].CC[O-] RPDAUEIUDPHABB-UHFFFAOYSA-N 0.000 description 1
- TYJJADVDDVDEDZ-UHFFFAOYSA-M potassium hydrogencarbonate Chemical compound [K+].OC([O-])=O TYJJADVDDVDEDZ-UHFFFAOYSA-M 0.000 description 1
- 229940086066 potassium hydrogencarbonate Drugs 0.000 description 1
- BDAWXSQJJCIFIK-UHFFFAOYSA-N potassium methoxide Chemical compound [K+].[O-]C BDAWXSQJJCIFIK-UHFFFAOYSA-N 0.000 description 1
- ZYAINOHNPXGGBU-UHFFFAOYSA-M potassium;3-hydroxy-2-methylbenzoate Chemical compound [K+].CC1=C(O)C=CC=C1C([O-])=O ZYAINOHNPXGGBU-UHFFFAOYSA-M 0.000 description 1
- 239000002244 precipitate Substances 0.000 description 1
- 239000000047 product Substances 0.000 description 1
- FVSKHRXBFJPNKK-UHFFFAOYSA-N propionitrile Chemical compound CCC#N FVSKHRXBFJPNKK-UHFFFAOYSA-N 0.000 description 1
- 125000003373 pyrazinyl group Chemical group 0.000 description 1
- PBMFSQRYOILNGV-UHFFFAOYSA-N pyridazine Chemical group C1=CC=NN=C1 PBMFSQRYOILNGV-UHFFFAOYSA-N 0.000 description 1
- 125000004076 pyridyl group Chemical group 0.000 description 1
- 125000000714 pyrimidinyl group Chemical group 0.000 description 1
- 125000002294 quinazolinyl group Chemical group N1=C(N=CC2=CC=CC=C12)* 0.000 description 1
- 125000002943 quinolinyl group Chemical group N1=C(C=CC2=CC=CC=C12)* 0.000 description 1
- 125000001567 quinoxalinyl group Chemical group N1=C(C=NC2=CC=CC=C12)* 0.000 description 1
- 238000010526 radical polymerization reaction Methods 0.000 description 1
- 230000009257 reactivity Effects 0.000 description 1
- 238000001953 recrystallisation Methods 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 229910052703 rhodium Inorganic materials 0.000 description 1
- 239000010948 rhodium Substances 0.000 description 1
- MHOVAHRLVXNVSD-UHFFFAOYSA-N rhodium atom Chemical compound [Rh] MHOVAHRLVXNVSD-UHFFFAOYSA-N 0.000 description 1
- 150000003839 salts Chemical class 0.000 description 1
- 230000001235 sensitizing effect Effects 0.000 description 1
- 125000003808 silyl group Chemical group [H][Si]([H])([H])[*] 0.000 description 1
- 150000003384 small molecules Chemical class 0.000 description 1
- 150000003385 sodium Chemical class 0.000 description 1
- 239000011734 sodium Substances 0.000 description 1
- 229910052708 sodium Inorganic materials 0.000 description 1
- 229910000030 sodium bicarbonate Inorganic materials 0.000 description 1
- 235000017557 sodium bicarbonate Nutrition 0.000 description 1
- 229910000029 sodium carbonate Inorganic materials 0.000 description 1
- 235000017550 sodium carbonate Nutrition 0.000 description 1
- KKCBUQHMOMHUOY-UHFFFAOYSA-N sodium oxide Chemical compound [O-2].[Na+].[Na+] KKCBUQHMOMHUOY-UHFFFAOYSA-N 0.000 description 1
- 229910001948 sodium oxide Inorganic materials 0.000 description 1
- 238000003860 storage Methods 0.000 description 1
- 125000005504 styryl group Chemical group 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 238000010558 suspension polymerization method Methods 0.000 description 1
- GFYHSKONPJXCDE-UHFFFAOYSA-N sym-collidine Natural products CC1=CN=C(C)C(C)=C1 GFYHSKONPJXCDE-UHFFFAOYSA-N 0.000 description 1
- 239000013076 target substance Substances 0.000 description 1
- ODHXBMXNKOYIBV-UHFFFAOYSA-N triphenylamine Chemical class C1=CC=CC=C1N(C=1C=CC=CC=1)C1=CC=CC=C1 ODHXBMXNKOYIBV-UHFFFAOYSA-N 0.000 description 1
- CMSYDJVRTHCWFP-UHFFFAOYSA-N triphenylphosphane;hydrobromide Chemical compound Br.C1=CC=CC=C1P(C=1C=CC=CC=1)C1=CC=CC=C1 CMSYDJVRTHCWFP-UHFFFAOYSA-N 0.000 description 1
- 238000007738 vacuum evaporation Methods 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
- C07C43/00—Ethers; Compounds having groups, groups or groups
- C07C43/02—Ethers
- C07C43/20—Ethers having an ether-oxygen atom bound to a carbon atom of a six-membered aromatic ring
- C07C43/215—Ethers having an ether-oxygen atom bound to a carbon atom of a six-membered aromatic ring having unsaturation outside the six-membered aromatic rings
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07F—ACYCLIC, CARBOCYCLIC OR HETEROCYCLIC COMPOUNDS CONTAINING ELEMENTS OTHER THAN CARBON, HYDROGEN, HALOGEN, OXYGEN, NITROGEN, SULFUR, SELENIUM OR TELLURIUM
- C07F9/00—Compounds containing elements of Groups 5 or 15 of the Periodic Table
- C07F9/02—Phosphorus compounds
- C07F9/28—Phosphorus compounds with one or more P—C bonds
- C07F9/54—Quaternary phosphonium compounds
- C07F9/5428—Acyclic unsaturated phosphonium compounds
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09K—MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FOR ELSEWHERE
- C09K19/00—Liquid crystal materials
- C09K19/04—Liquid crystal materials characterised by the chemical structure of the liquid crystal components, e.g. by a specific unit
- C09K19/06—Non-steroidal liquid crystal compounds
- C09K19/08—Non-steroidal liquid crystal compounds containing at least two non-condensed rings
- C09K19/10—Non-steroidal liquid crystal compounds containing at least two non-condensed rings containing at least two benzene rings
- C09K19/14—Non-steroidal liquid crystal compounds containing at least two non-condensed rings containing at least two benzene rings linked by a carbon chain
- C09K19/16—Non-steroidal liquid crystal compounds containing at least two non-condensed rings containing at least two benzene rings linked by a carbon chain the chain containing carbon-to-carbon double bonds, e.g. stilbenes
Definitions
- the present invention relates to an optical sensor, an organic electroluminescence element (EL element), a photoconductor, a spatial modulation element, a thin film transistor, a charge transport material of an electrophotographic photoreceptor, a photolithographic, a solar cell, a nonlinear optical material, and an organic material.
- the present invention relates to a novel benzene derivative having a long linear conjugated structure useful as a charge transporting material for semiconductor capacitors and other sensors, a method for producing the same, a liquid crystal material, and a charge transporting material.
- charge transport materials compounds such as anthracene derivatives, anthraquinoline derivatives, imidazole derivatives, styryl derivatives, hydrazone derivatives, triphenylamine compounds, poly-N-vinylcarbazoledioxaziazole and the like have hitherto been known. Have been.
- Liquid crystal compounds are applied to various devices as display materials, for example, clocks, calculators, televisions, personal computers, mobile phones, and the like.
- Liquid crystal materials are classified into thermotropic liquid crystals (temperature transition type liquid crystals) and lyotropic liquid crystals (concentration transition type liquid crystals) based on the means for imparting phase transition. In terms of molecular arrangement, these liquid crystals are classified into three types: smectic liquid crystals, nematic liquid crystals, and cholesteric liquid crystals.
- Liquid crystals have the same optical anisotropy as optically uniaxial crystals, as they are also called anisotropic liquids.
- Orthoscopic observation is a normal observation between crossed Nicols, and is useful for discriminating the type of liquid crystal and determining the transition temperature of the liquid crystal phase.
- the smectic liquid crystal is further classified into A, B, D, E, F, and G by the folding optical pattern.
- a liquid crystalline charge transporting material in which a predetermined amount of fullerene C70 having a sensitizing action is mixed with a liquid crystalline compound exhibiting a smectic phase having a self-orienting property Japanese Patent Laid-Open No. JP-A-11-17628
- a liquid crystalline charge transporting material-dispersed polymer film in which a liquid crystalline compound exhibiting a smectic phase is contained in an organic polymer matrix No. 118 publication
- a liquid crystalline charge transport material containing a mixture containing a smectic liquid crystalline compound Japanese Patent Application Laid-Open No.
- the smectic liquid crystal compounds proposed above include a 67T electron aromatic ring such as a benzene ring, a pyridine ring, a pyrimidine ring, a pyridazine ring, a pyrazine ring, a troborone ring, a naphthalene ring, an azulene ring, a benzofuran ring, an indole ring, 10 ⁇ electron aromatics such as indazole ring, benzothiazole ring, benzoxazole ring, benzimidazole ring, quinoline ring, isoquinoline ring, quinazoline ring and quinoxaline ring, or 14 ⁇ such as phenanthone ring and anthracene ring It uses an smectic liquid crystal compound having an electronic aromatic ring to transport charges in a smectic ⁇ phase liquid crystal state.
- the charge transport method described above is in need of photoexcitation, its conductivity even without photoexcitation 1 0 - 1 3 s / cm, the value of the region of be photoexcited 1 O-s / cm leave it insulator Atsuta. Disclosure of the invention The present inventors have previously proposed a charge transport method in which a voltage is applied to a liquid crystalline compound having a smectic B phase as a liquid crystal phase in a liquid crystal state of the smectic B phase or in a solid state generated by a phase transition of the smectic B phase (JP 2001-351786).
- the present invention has been made in view of such prior art, and an object of the present invention is to provide a benzene having a novel long linear conjugated structure capable of exhibiting excellent charge transporting ability without photoexcitation. It is an object of the present invention to provide a derivative, a method for producing the derivative, a liquid crystalline material and a charge transport material containing the compound.
- the first invention of the present invention provides the following general formula (1)
- R 1 is a methyl group, a hydrogen atom
- A is an alkylene group, -CO-0- (CH 2 )
- a third invention of the present invention provides a liquid crystal comprising a benzene derivative having a long linear conjugated structure represented by the general formula (1) or a compound derived therefrom. Material.
- a fourth invention of the present invention is a charge transporting material comprising the liquid crystalline material.
- FIG. 1 is a schematic diagram showing one embodiment of a charge transport device using the charge transport material of the present invention.
- FIG. 2 is a schematic view showing one embodiment of a charge transport device using the charge transport material of the present invention.
- FIG. 3 is an X-ray diffraction diagram when the benzene derivative having a long linear conjugated structure obtained in Example 1 was measured at 170 ° C.
- FIG. 4 is a diagram showing a fluorescence spectrum when the benzene derivative having a long linear conjugated structure obtained in Example 1 was measured at an excitation wavelength of 368 nm.
- FIG. 4 is a diagram illustrating a relationship between a temperature and a current amount.
- FIG. 6 is a diagram (first time) showing the relationship between the amount of current at each voltage and the benzene derivative having a long linear conjugated structure obtained in Example 1 at a temperature of 130 ° C. is there.
- FIG. 7 is a diagram (second time) showing the relationship between the amount of current at each voltage and the benzene derivative having a long linear conjugated structure obtained in Example 1 at a temperature of 130 ° C. .
- FIG. 8 shows that the benzene derivative having a long linear conjugated structure obtained in Example 1 was heated to 130 ° C., cooled to 100 ° by natural cooling, and then cooled at 100 ° C.
- FIG. 4 is a diagram showing the relationship between the current amounts for each voltage at 10 ° C .
- FIG. 9 shows that the benzene derivative having a long linear conjugated structure obtained in Example 1 was heated to 130 ° C, cooled to 50 by natural cooling, and then cooled to 50 ° C at 50 ° C.
- the relationship between the amount of current for each voltage and the benzene derivative having a long linear conjugated structure obtained in Example 1 was heated to 130 ° C, cooled rapidly to 50 ° C, and then cooled to 50 ° C.
- FIG. 6 is a diagram showing a relationship between current amounts for each voltage at 0 ° C.
- la and lb are glass substrates
- 2a and 2b are electrodes
- 4 is a spencer
- 3 and 13 are liquid crystal layers
- 5 is a voltage applying means.
- R represents a hydrogen atom or a methyl group
- A represents an alkylene group
- the alkylene group may be linear or branched.
- the alkylene group specifically has 1 carbon atom
- ⁇ 18 are preferable, for example, methylene group, ethylene group, trimethylene group, tetramethylene group, pentamethylene group, ethylethylene group, propylene group, butylene group, hexylene group, chlorodecylene group, nonylene group, Examples include a decylene group and a dodecylene group. Also, —co—0— (CH 2 ) n — n is preferably from 1 to L8.
- the benzene derivative having a long linear conjugated structure represented by the general formula (1) is a novel compound, and the compound has a cis- or trans-form or a cis- or trans-form as a conformation. It may be a mixture of bodies.
- the production method of the present invention basically comprises the following first and second steps. ⁇ First step>
- the 4-hydroxybenzaldehyde represented by the general formula (2) as the first raw material used in the first step is not particularly limited, and a commercially available one can be used.
- R 1 and A in the formula of the halide represented by the general formula (3) of the second raw material used in the first step have a long linear conjugated structure represented by the general formula (1) a group corresponding to R 1 and a benzene derivative, R 1 represents a hydrogen atom or a methyl group, a is ⁇ Les thousand Ren, - CO- 0- CH 2) n- , one C S H 4 - Shows CH 2 —, CO —.
- the alkylene group may be linear or branched.
- the alkylene group preferably has 1 to 18 carbon atoms, for example, a methylene group, an ethylene group, a trimethylene group, a tetramethylene group, a pentamethylene group, an ethylethylene group, a propylene group, a butylene group, Examples include a hexylene group, an octadecylene group, a nonylene group, a decylene group and a dodecylene group.
- n of —C0-0— (CHJ n — is particularly preferably 1 to 18.
- X 1 in the formula is a halogen atom such as chlorine, bromine or iodine, and a bromine atom is particularly preferable in terms of reactivity.
- the halide of the second raw material represented by the general formula (3) can be produced by a known method.
- One example thereof is represented by the following reaction formula (2).
- the amount of the halide represented by the general formula (3) is at least 1 mol, preferably 1.5 to 2.0 mol, of the 4-hydroxybenzaldehyde represented by the general formula (2). It is.
- Bases that can be used include inorganic salts such as 7_ sodium oxide, sodium carbonate, sodium hydrogen carbonate, potassium hydroxide, potassium carbonate, potassium hydrogen carbonate, potassium hydroxide, calcium carbonate, barium hydroxide, calcium hydroxide, etc.
- Bases trimethylamine, ⁇ , ⁇ -dimethylcyclohexylamine, ⁇ , ⁇ -dimethylcyclohexylamine, ⁇ , ⁇ -dimethylbenzylamine, ⁇ , ⁇ , -dimethylpiperazine, ⁇ , ⁇ -dimethylaniline , ⁇ , ⁇ -Jetylaniline, ⁇ , ⁇ , N ', ⁇ , tetramethyl-1,3-propanediamine, pyridine, ⁇ -picolin, / 3_picoline, apicolin, 4-ethylethylmorpholine, triethylene Diamine, 1,3-diazabicyclo [5,4,0] pendene, 1,8-diazavish mouth [5,4,0] —7-pendecene, Lupiperidine, quinoline, isoquinoline, ⁇ , ⁇ -dimethylbiperazine, ⁇ , ⁇ ⁇ -methyl-piperazine, quinaldine,
- the amount of the base to be added is usually sufficient to be equimolar to the 4-hydroxybenzaldehyde represented by the general formula (2).
- reaction solvent for example, dioxane, tetrahydrofuran, dibutyl ether It is used in one or more of ethers such as ter, nitriles such as acetonitrile and propionitrile, alcohols such as methanol and ethanol, dimethylformamide, acetone and? M.
- the reaction is carried out at a reaction temperature of 0 to 100 ° C., preferably 20 to 50 ° C., and a reaction time of 0.5 to 50 hours, preferably 10 to 30 hours.
- the second step is represented by the following reaction formula (3).
- RA and X 2 have the same meanings as defined above).
- X 2 in the formula of p-xylenebis- (triphenylphosphonium halogen) represented by the general formula (5) represents a halogen atom such as chlorine, bromine, or iodine; It is particularly preferable in view of the aspect.
- P-xylenebis (triphenyl) As the phosphonium halide, a commercially available product can be used.
- the benzoaldehyde derivative represented by the general formula (4) and p-xylenebis- (triphenylphosphonium halide) represented by the general formula (5) are combined with a base.
- the reaction is carried out in a solvent in the presence.
- the amount of p-xylenebis- (triphenylphosphonium halogen) represented by the general formula (5) is preferably 2 to 4 times the molar amount of the benzaldehyde derivative represented by the general formula (4). Is 2 to 2.5 times mol.
- the base that can be used in the second step is not particularly limited.
- examples thereof include metal hydrides such as hydrogenated sodium, amines such as trimethylamine and triethylamine, potassium hydroxide, and 7j acid.
- Alkoxides such as sodium hydroxide, sodium methoxide, potassium methoxide, sodium, ethoxide, potassium ethoxide, etc., piperidine, pyridine, potassium cresolate, alkyllithium, etc. These are used alone or in combination of two or more.
- the amount of these bases to be added is 1 to 5 times, preferably 3.5 to 4.5 times the molar amount of p-xylenebis (triphenylphosphonium halogen) represented by the general formula (5). It is twice the mole.
- reaction solvent examples include ethers such as dioxane, tetrahydrofuran and dibutyl ether, nitriles such as acetonitrile and propionitol, alcohols such as methanol and ethanol, and one or two kinds such as dimethylformamide and acetone. The above can be used.
- the reaction is performed at a reaction temperature of 0 to 100 ° C., preferably 20 to 50 ° C., and a reaction time of 0.5 to 50 hours, preferably 5 to 30 hours.
- the resultant is filtered, optionally washed, and dried to obtain a benzene derivative having a long linear conjugated structure represented by the general formula (1).
- the benzene derivative having a long linear conjugated structure represented by the general formula (1) obtained as required may be further subjected to a heat treatment in a solvent in the presence of iodine. It comes out.
- the benzene derivative having a long linear conjugated structure represented by the general formula (1) can be selectively converted to a trans form.
- the iodine is added in an amount of 0.001 to 0.1 times, preferably 0.00 times the amount of the benzene derivative having a long linear conjugated structure represented by the general formula (1).
- the heat treatment temperature is 100 to 180 ° C, preferably 130 to 150 ° C.
- solvents examples include benzene, toluene, o-xylene, m-xylene, p-xylene, benzene benzene, o-dichlorobenzene, m-dichlorobenzene, and p-dichlorobenzene. These solvents can be used alone or in combination of two or more.
- the thus-obtained benzene derivative having a long linear conjugated structure represented by the general formula (1) is a novel compound having liquid crystallinity, emitting blue light, and having charge transport ability.
- Photosensors utilizing charge transport properties organic electroluminescent devices (EL devices), photoconductors, spatial modulation devices, thin film transistors, charge transport materials for electrophotographic photoreceptors, photolithography, solar cells, nonlinear optics It can be used as a material for materials, organic semiconductor capacitors, and other sensors.
- the liquid crystal material of the present invention is derived from a benzene derivative having a long linear conjugated structure represented by the general formula (1) or a benzene derivative having the long linear conjugated structure. It contains a compound.
- the compound derived from the benzene derivative having a long linear conjugated structure represented by the general formula (1) is a homopolymer of a benzene derivative having the long linear conjugated structure.
- a polymer a high molecular weight compound cross-linked by a cross-linking agent, or a low molecular weight compound obtained by an addition reaction with a high molecular compound having a silyl group at a lip end (hereinafter, referred to as “polymer”).
- the polymer has at least the following general formula (7) or the following general formula (8) ⁇ CH2-
- the polymer may have a repeating unit derived from acrylic acid, methacrylic acid, styrene or the like as a copolymer component.
- the repeating unit represented by the above general formula (7) or the above general formula (8) accounts for 50 mol% or more, preferably 70 mol% or more, more preferably 80 mol% or more in the copolymer. Mol% or more.
- the molecular weight of the polymer is such that the number average liver weight is in the range of 100 to tens of millions, preferably in the range of tens of thousands to millions.
- the polymer can be produced by the following method. For example, to produce a homopolymer, copolymer or a high molecular weight compound crosslinked by a crosslinking agent of the general formula (1), a desired monomer or a desired monomer and a crosslinking agent are used as a polymerization initiator. It can be produced by performing a polymerization reaction in the presence of a radical polymerization method such as a solution polymerization method, a suspension polymerization method, an emulsion polymerization method, or a bulk polymerization method.
- a radical polymerization method such as a solution polymerization method, a suspension polymerization method, an emulsion polymerization method, or a bulk polymerization method.
- a hydrosilyl group is required.
- a benzene derivative having a long linear conjugated structure represented by the general formula (1) with chloroplatinic acid, an alcohol solution of chloroplatinic acid, a complex of platinum and an olefin complex, rhodium and carbonyl It can be produced by carrying out the reaction in the presence of an oral catalyst such as a complex of the above.
- the liquid crystalline material according to the present invention includes a benzene derivative having a long linear conjugated structure represented by the general formula (1), a composition containing the benzene derivative having the long linear conjugated structure, It is a material exhibiting a liquid crystallinity of a smectic phase as a liquid crystal phase composed of the polymer or a composition containing the polymer.
- the composition containing a benzene derivative having a long linear conjugated structure represented by the general formula (1) comprises a benzene derivative having a long linear conjugated structure represented by the general formula (1).
- components in the composition are components that adjust the phase transition temperature of a benzene derivative having a long linear conjugated structure represented by the general formula (1), and include, for example, other liquid crystal compounds, One or more compounds having both ends having an alkyl group or an alkoxy group at both ends having another long linear conjugate system can be used.
- the compound which is a group or an alkoxy group may or may not be a liquid crystal compound.
- a composition containing a benzene derivative having a long linear conjugated structure represented by the general formula (1) can be prepared as follows. That is, after dissolving a benzene derivative having a long linear conjugated structure represented by the general formula (1) and a desired component described above in a solvent, the solvent is removed by heating, reduced pressure, or the like, or the general formula ( It can be prepared by mixing a benzene derivative having a long linear conjugated structure represented by 1) with the above-mentioned desired components, and melting by carothermal heating, or by performing sputtering, vacuum deposition, or the like.
- composition containing the polymer contains the polymer at least 30% by weight or more, preferably 50% by weight or more, more preferably 80% by weight or more, and the general formula (1) Of benzene derivatives with long linear conjugated structure represented by It shows a liquid crystal state of a smectic phase due to crystallinity.
- components in such a composition are components that adjust the phase transition temperature of the polymer, and include, for example, other liquid crystal compounds, and alkyl groups or alkoxy groups at both ends having another long linear conjugated system.
- One or two or more compounds may be used, and a compound having a long linear conjugate system of other components and having an alkyl group or an alkoxy group at both ends may be a liquid crystal compound. It is not necessary.
- These other components can be used alone or in combination of two or more.
- This polymer composition can be prepared as follows. That is, after dissolving the polymer and the desired component in a solvent, the solvent is removed by heating, reducing pressure, or the like, or the polymer and the desired component are mixed and heated and melted, or sputtering or vacuum evaporation is performed. Can be prepared.
- the liquid crystal material according to the present invention is excellent, for example, by applying a voltage to the liquid crystal material in a liquid crystal state or by applying a voltage to the liquid crystal material in a solid state generated by a phase transition of the liquid crystal state. It can be used as a charge-transporting material because it exhibits an improved charge-transporting ability.
- Preferred compounds of the benzene derivative having a long linear conjugated structure represented by the general formula (1) used in the charge transport material of the present invention include: R 1 is a hydrogen atom or a methyl group, and A in the formula is a linear alkylene group having 6 to 18 carbon atoms, preferably 8 to 12 carbon atoms, 1 c s H 4 and 1 CH 2 —, It is preferable that n of 1 co— or 1 co—0— (CH 2 ) n — is 6 to 18, preferably 8 to 12.
- the charge transporting material of the present invention contains the liquid crystalline material, and the liquid crystalline material of the present invention preferably has a smectic phase as a liquid crystal phase.
- the charge transporting material of the present invention may be obtained by applying a voltage to the liquid crystalline material in a liquid crystal state of a smectic phase, or a solid state generated by a phase transition in a process of lowering the temperature from the smectic phase, specifically, a crystalline phase, a glassy state, The charge is transported by applying a voltage in an amorphous solid.
- the charge transport material of the present invention can be used, for example, as a charge transport element.
- the charge transport element has a liquid crystal layer using the charge transport material between substrates provided with a pair of electrodes, and applies a voltage to the charge transport material in a smectic phase liquid crystal state, through the liquid crystal layer.
- Means for transporting charge hereinafter, referred to as “1 charge transport element”
- a liquid crystal layer using the charge transport material between substrates provided with a pair of electrodes and the charge transport material.
- charge transport devices 2 means for applying a voltage in the solid state generated by the phase transition from the smectic phase to transport charges through the liquid crystal layer.
- FIG. 1 is a schematic view showing one embodiment of the above-mentioned charge transport device.
- the charge transport device of the present invention includes two glass substrates 1a and 1b, each of which has electrodes 2a and 2b made of a transparent electrode such as ITO on the surfaces of the two glass substrates 1a and 1b.
- the substrate is bonded by an adhesive with a constant cell interval via a spacer 4 to form a cell, and the charge transport material is injected into the cell and provided in the liquid crystal layer 3 between the electrodes.
- a voltage is applied to the electrodes 2a and 2b in the liquid crystal state of the smectic phase of the charge transport material, a high current density can be obtained through the liquid crystal layer, and the charge can be transported.
- FIG. 2 is a schematic view showing one embodiment of the above-mentioned charge transport device.
- the charge transport device of the present invention includes two glass substrates 1a and 1b, each of which has electrodes 2a and 2b made of a transparent electrode such as ITO on the surfaces of the two glass substrates 1a and 1b.
- a cell is formed by bonding the substrate of the above with an adhesive with a constant cell interval via a spacer 14, and injecting the charge transport material into the cell, and interposing the liquid crystal layer 13 between the electrodes.
- the electrodes 2a and 2b are connected to voltage applying means 5 for applying a voltage in a solid state generated by a phase transition of the smectic phase of the charge transport material.
- the benzene derivative having a long linear conjugated structure represented by the general formula (1) of the present invention is a compound exhibiting liquid crystallinity, and the compound may be in a liquid crystal state in a smectic phase or may be cooled by a temperature decrease in the smectic phase.
- solid state smectic phase generated by phase transition By controlling the molecular orientation having a layered arrangement, the overlapping of the long conjugated ⁇ -electron system of the liquid crystalline compound becomes dense, and the order of 500 A / cm 2 or more is preferable.
- the optical sensor by utilizing the charge-transporting organic elect port luminescent element (EL element), an optical conductor, the spatial modulation element, a thin film
- EL element organic elect port luminescent element
- the optical sensor by utilizing the charge-transporting organic elect port luminescent element (EL element), an optical conductor, the spatial modulation element, a thin film
- EL element organic elect port luminescent element
- the spatial modulation element a thin film
- a charge transport material for transistors charge transport materials for electrophotographic photoreceptors, photolithography, solar cells, nonlinear optical materials, organic semiconductor capacitors, and other materials for sensors.
- ITO organic electroluminescent device
- two or more electrodes at least one of which is ITO (A transparent electrode like the one described above).
- the charge transporting material of the present invention can be used as a hole transporting layer, an electron transporting layer, or a light emitting layer.
- an optical sensor by interposing the charge transporting material of the present invention between two electrodes (at least one of which is transparent), a current change caused by light irradiation can be detected.
- an electrophotographic photoreceptor or an image storage element it can be prepared by laminating a charge generation layer and a charge transport layer of the present invention on a substrate or an electrode.
- the second step is represented by the following reaction formula (5)
- Example 1 In the first step of Example 1, the first and second steps of Example 1 were carried out except that 10-promo-1-decene as a reaction raw material was replaced with 8-butacene 1-octene. 15) A benzene derivative represented by the following formula was obtained.
- Example 2 Cyst SmB ⁇ so Note) Cyst; crystal, SmG; smectic G phase, SmB; smectic B phase, SmA; smectic A phase, iso; isotropic liquid
- FIG. 3 shows an X-ray diffraction pattern obtained by subjecting the compound (14) to X-ray diffraction analysis at 170 ° C.
- FIG. 4 shows the fluorescence spectrum when the benzene derivative (compound (14)) obtained in Example 1 was measured at an excitation wavelength of 3668 nm.
- a gap (approximately 15 / m) is provided by a spacer particle between two glass substrates provided with IT electrodes by vacuum deposition so that each TO electrode faces each other, and the cells are bonded together. Created.
- the temperature was lowered from 130 to 50 ° C by natural cooling, and the current for each voltage was measured at 50 ° :. The results are shown in FIG.
- the benzene derivative having a long linear conjugated structure represented by the general formula (1) of the present invention is a novel compound, and the benzene derivative having the long linear conjugated structure is a liquid crystal.
- a voltage is applied to a charge transporting material containing a benzene derivative having a long linear conjugated structure or a compound derived from the derivative, which is a compound having a smectic phase as a phase, while maintaining a molecular orientation in a liquid crystal state.
- a charge transporting ability is exhibited by the addition of the charge transport material, and the charge transport can be performed at a current density of 500 li / cm 2 or more, preferably 1 mm AZ cm 2 or more, which is not available in conventional charge transporting materials. .
- This at least 1 6 X 1 0 in conductivity -.
- this value is the value of the semiconductor region.
- the charge transport material of the present invention an optical sensor utilizing charge transport properties, an organic electroluminescence device (EL device), a photoconductor, a spatial modulation device, a thin film transistor, a charge transport material for an electrophotographic photoreceptor, and a photolithograph It can be suitably used as a material for semiconductors, solar cells, non-linear optical materials, organic semiconductor capacitors, and other sensors.
- EL device organic electroluminescence device
- a photoconductor a photoconductor
- a spatial modulation device a thin film transistor
- a charge transport material for an electrophotographic photoreceptor and a photolithograph
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- Chemical & Material Sciences (AREA)
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- Crystallography & Structural Chemistry (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- Health & Medical Sciences (AREA)
- Biochemistry (AREA)
- General Health & Medical Sciences (AREA)
- Molecular Biology (AREA)
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
- Photoreceptors In Electrophotography (AREA)
- Liquid Crystal Substances (AREA)
- Electroluminescent Light Sources (AREA)
Description
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CN200480007802XA CN1768025B (zh) | 2003-03-24 | 2004-03-22 | 具有长直线形的共轭类结构部分的苯衍生物及其制造方法、液晶性材料和电荷输送材料 |
JP2005504042A JP4476933B2 (ja) | 2003-03-24 | 2004-03-22 | 長い直線的共役系構造部分を持つベンゼン誘導体、その製造方法、液晶性材料及び電荷輸送材料 |
US10/548,387 US7482494B2 (en) | 2003-03-24 | 2004-03-22 | Benzene derivative having long, linear conjugated structure, process for producing benzene derivative, and charge-transport material |
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JP (1) | JP4476933B2 (ja) |
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US7965534B2 (en) | 2006-05-31 | 2011-06-21 | Yamanashi University | Memory device, data recording method and IC tag |
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JP4870949B2 (ja) * | 2004-12-07 | 2012-02-08 | 日本化学工業株式会社 | 導電性材料、その製造方法、液晶組成物、半導体素子及び情報記録媒体 |
JP5164329B2 (ja) * | 2006-02-14 | 2013-03-21 | 国立大学法人山梨大学 | 液晶性スチリル誘導体、その製造方法及びそれを用いた液晶性半導体素子 |
JP5291894B2 (ja) * | 2007-05-23 | 2013-09-18 | 国立大学法人山梨大学 | メモリ素子、データ記録方法及びicタグ |
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JP2004006271A (ja) * | 2002-04-08 | 2004-01-08 | Yuichiro Haramoto | 長い直線的共役系構造部分を持つ液晶分子を用いた電荷輸送方法及び電荷輸送素子 |
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JP2004006271A (ja) * | 2002-04-08 | 2004-01-08 | Yuichiro Haramoto | 長い直線的共役系構造部分を持つ液晶分子を用いた電荷輸送方法及び電荷輸送素子 |
Non-Patent Citations (1)
Title |
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NDAYIKENGURUKIYE H. ET AL: "Alkoxylated p-Phenylenevinylene Oligomers: Synthesis and Spectroscopic and Electrochemical Properties", TETRAHEDRON, vol. 53, no. 40, 1997, pages 13811 - 13828, XP004106259 * |
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US7965534B2 (en) | 2006-05-31 | 2011-06-21 | Yamanashi University | Memory device, data recording method and IC tag |
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KR20050120662A (ko) | 2005-12-22 |
JP4476933B2 (ja) | 2010-06-09 |
JPWO2004085360A1 (ja) | 2006-06-29 |
US7482494B2 (en) | 2009-01-27 |
CN1768025A (zh) | 2006-05-03 |
US20060255318A1 (en) | 2006-11-16 |
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