Classifications

• • 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
  • C09K11/00—Luminescent, e.g. electroluminescent, chemiluminescent materials
  • C09K11/06—Luminescent, e.g. electroluminescent, chemiluminescent materials containing organic luminescent materials
• • 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
  • C07F3/00—Compounds containing elements of Groups 2 or 12 of the Periodic Table
  • C07F3/003—Compounds containing elements of Groups 2 or 12 of the Periodic Table without C-Metal linkages
• • 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
  • C07F3/00—Compounds containing elements of Groups 2 or 12 of the Periodic Table
  • C07F3/06—Zinc compounds
• • H—ELECTRICITY
  • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
  • H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
  • H05B33/00—Electroluminescent light sources
  • H05B33/12—Light sources with substantially two-dimensional radiating surfaces
  • H05B33/14—Light sources with substantially two-dimensional radiating surfaces characterised by the chemical or physical composition or the arrangement of the electroluminescent material, or by the simultaneous addition of the electroluminescent material in or onto the light source
• • H—ELECTRICITY
  • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
  • H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
  • H05B33/00—Electroluminescent light sources
  • H05B33/12—Light sources with substantially two-dimensional radiating surfaces
  • H05B33/22—Light sources with substantially two-dimensional radiating surfaces characterised by the chemical or physical composition or the arrangement of auxiliary dielectric or reflective layers
• • H—ELECTRICITY
  • H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
  • H10K—ORGANIC ELECTRIC SOLID-STATE DEVICES
  • H10K50/00—Organic light-emitting devices
  • H10K50/10—OLEDs or polymer light-emitting diodes [PLED]
  • H10K50/11—OLEDs or polymer light-emitting diodes [PLED] characterised by the electroluminescent [EL] layers
• • H—ELECTRICITY
  • H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
  • H10K—ORGANIC ELECTRIC SOLID-STATE DEVICES
  • H10K71/00—Manufacture or treatment specially adapted for the organic devices covered by this subclass
• • H—ELECTRICITY
  • H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
  • H10K—ORGANIC ELECTRIC SOLID-STATE DEVICES
  • H10K85/00—Organic materials used in the body or electrodes of devices covered by this subclass
  • H10K85/30—Coordination compounds
  • H10K85/381—Metal complexes comprising a group IIB metal element, e.g. comprising cadmium, mercury or zinc
• • 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
  • C09K2211/00—Chemical nature of organic luminescent or tenebrescent compounds
  • C09K2211/18—Metal complexes
  • C09K2211/186—Metal complexes of the light metals other than alkali metals and alkaline earth metals, i.e. Be, Al or Mg

Definitions

• the invention relates to luminescent compounds based on complexes of organic ligands with zinc, with potential application in electronics, biology and medicine and, in particular, in the design of organic light emitting diodes
• the invention also relates to the method of preparation of these compounds and applications thereof.
• Alq 3 In the structure of Alq 3 , the aluminum atom is bound to three deprotonated hydroxyquinoline ligands. Thermal stability of Alq 3 makes it possible to deposit the compound in thin layers without decomposition by vacuum planting at 350 °C. Quantum yield of Alq 3 in solutions was 11% with maximum fluorescence at 532 nm. Znq 2 is characterized by comparable quantum yield. [T. A. Hopkins, K. Meerholz, S. Shaheen, M. L. Anderson, A. Schmidt, B. Kippelen, A. B. Padias, H. K. Hall, Jr., N. Peyghambarian, N. R. Armstrong Chem. Mater., 1996, 8, 344]
• fluorescent tags are used in studying and imaging of cell components: the membrane, cytoskeletal proteins, organelles: nuclei, mitochondria, lysosomes, endoplasmic reticula, Golgi apparata; tags are used to stain proteins for various purposes, including staining antibodies and enzymes, peptides, oligonucleotides and nucleic acids; fluorescent tags of suitable designs are used as chemical sensors for the measurement of concentrations of important intracellular substances, such as 0 2 , K + , H + and for the measurement of electric potentials of cellular membranes; tagged substances are used in both in vitro and in vivo studies, both in fixed materials and in living models.
• Tagged substances are used in many areas of biology and medicine, including genetics, biochemistry, e.g. in studying enzymatic activity, immunology, pathology, neurology, medical diagnostics, etc. In cellular function studies, tagging is used to study cell viability, cellular cycle, adhesion, apoptosis, substance cytotoxicity tests, etc. Numerous modern study techniques and technologies widely used in the above areas make use of compounds containing fluorescent tags, and the advances in the development of these techniques is determined by the advances in the development of tags, in particular in their sensitivity and stability.
• QDs are nanoparticles of cadmium selenide coated in a zinc sulphide layer: CdSe/ZnS QDs.
• Organic tags are small, but not resistant to photobleaching.
• Quantum dots are optically stable, but too large for many applications.
• the shift of maximum fluorescent emission may be achieved by introduction of a ligand with modified electronic properties, a change in the metal center or in the geometry of complex coordination zone.
• maximum fluorescence for Alq' 3 i.e., a complex consisting of monoanions of 8- hydroxyquinoline substituted with -CH 3 at C-4
• the shift in the emission bands is also dependent on the geometry of the molecule, as well as relative locations of molecules in the crystalline lattice and intermolecular interactions. For instance, differences in spectroscopic properties are observed for different polymorphic variants of Alq 3 . [M. Colle, R. E. Dinnebier, W. Briitting Chem. Commun., 2002, 2908]
• the multifunctional ligand L consists of a neutral organic compound or its deprotonated equivalent containing at least one Lewis base center and at least one functional group selected from -OH, - SH, -NH 2 , -NHR, -COOH, -CONH 2 , -CONRH or their deprotonated equivalents.
• the invention also relates to the method for preparation of compounds of general formula (R') x Zn Y (L) z (A) n (XR) m , where the precursor R' x Zn y (L) z (X k R) m , where L is a bi- or multifunctional organic neutral ligand or its deprotonated form, containing at least two heteroatoms selected from N, O, S, wherein at least one of the functional groups of the ligand is selected from -OH, -SH, -NH 2 , -NHR, -COOH, -CONH 2 , -CONRH or their deprotonated equivalents;
• X is oxygen or sulfur
• R' is C1-C10 alkyl, straight or branched, benzyl, phenyl cyclohexyl or halogen
• R is hydrogen, alkyl or aryl
• x is a number from 0 to 6
• y is a number
• inorganic acid salts are used in the reaction.
• oxyacids used include carbonic acid, sulfuric (IV) acid sulfuric (VI) acid, thiocarbonic acid, boric acid, nitric (III) acid, nitric (V) acid.
• the binary acids used include H 2 S, H 2 Se, H 2 Te.
• thermal transformation is conducted in the temperature range of 60-700°C, more preferably 60-400°C.
• the invention also relates to the use of compounds of general formula (R') x Zn y (L) z (A) n (X ) m for manufacture of emission and conduction layers for use in organic electroluminescent diode production technology as well as in other devices making use of luminophores.
• the monocrystals of the [(ZnMeq 2 ) 2 ( t BuZnOH) 2 ] adducts were heated at 200°C for 60 min. After this time, crystalline powder was obtained and characterized using an x-ray powder diffractometer. The spectrum of the tested compound corresponds to the reference spectrum of the adduct of structural formula presented in Example 3.
• Fig. 1 shows the increase in fluorescence intensity as measured in the course of transformations of the [(Znq 2 )2( f BuZnOH) 2 ] precursor in the presence of carbon dioxide
• Fig. 2 shows the fluorescence spectra of Zni 0 qi2(CO 3 ) (solid line) and quinine sulphate as the reference compound (dashed line) in toluene.
• Quantum yield of Zn 10 qi2(CO 3 ) 4 is 64% (Examples 9., 10 and 11).
• Zn 10 qi 2 (CO 3 ) 4 solubilized in water using appropriate double- and triple-block polymers, such as polyethylene-polypropylene glycol and poloxameres, was used for staining of a line of human fibroblasts.
• Microscopic specimens were prepared following three hours of incubation of cells in a phosphate buffer solution containing Zn 10 qi 2 (CO 3 ) .
• Microscopic analysis revealed efficient migration of the fluorophore into the cytoplasm, resulting in cell staining. No drop of fluorescence intensity over time was observed during irradiation with excitation wavelengths. Polymer-coated molecules dissolved in water had the average size of ca. 5 nm.
• Fig. 3 shows a fluorescence microscopy image of stained fibroblasts
• Fig. 4 shows an image of the control sample, i.e. cells treated with polymer alone.

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• Chemical & Material Sciences (AREA)
• Organic Chemistry (AREA)
• Engineering & Computer Science (AREA)
• Materials Engineering (AREA)
• Inorganic Chemistry (AREA)
• Manufacturing & Machinery (AREA)
• Physics & Mathematics (AREA)
• Optics & Photonics (AREA)
• Investigating Or Analysing Materials By The Use Of Chemical Reactions (AREA)
• Electroluminescent Light Sources (AREA)
• Quinoline Compounds (AREA)

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• 2010
  • 2010-07-07 PL PL391776A patent/PL222231B1/pl unknown
• 2011
  • 2011-07-06 JP JP2013518306A patent/JP2013537517A/ja active Pending
  • 2011-07-06 CA CA2804366A patent/CA2804366A1/en not_active Abandoned
  • 2011-07-06 US US13/808,907 patent/US9217104B2/en not_active Expired - Fee Related
  • 2011-07-06 BR BR112013000426A patent/BR112013000426A2/pt not_active IP Right Cessation
  • 2011-07-06 WO PCT/PL2011/000070 patent/WO2012005615A1/en not_active Ceased
  • 2011-07-06 KR KR1020137002799A patent/KR20130094297A/ko not_active Withdrawn
  • 2011-07-06 CN CN201180042983.XA patent/CN103221509B/zh not_active Expired - Fee Related
  • 2011-07-06 EP EP11748764.5A patent/EP2591065A1/en not_active Withdrawn

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