251 results about "Platinum complex" patented technology

The invention discloses a tetravalent platinum autophagy inducer with a structure of a general formula I as well as a preparation method and application of the tetravalent platinum autophagy inducer. The compound disclosed by the invention has an induction effect on cell autophagy, and can be used for degrading immunosuppressive protein tenascin-C (Tenascinin-C) through autophagy so as to improve a tumor immunosuppressive microenvironment. The tetravalent platinum complex induces tumor cells to generate autophagic death through unique structural characteristics, promotes immune killer cells to infiltrate a tumor immune microenvironment, can be used for preparing novel chemical immunotherapy drugs with multiple anti-tumor mechanisms, and has broad application prospects. The problems that the traditional treatment effect is poor and a small molecule immunotherapeutic agent is lacked are solved. # imgabs0 #

The invention belongs to the technical field of pouring sealants, and particularly relates to a high-adhesion organic silicon electronic pouring sealant and a preparation method thereof. Comprising the following raw materials, the silicone rubber is prepared from alpha, omega-dihydroxyl polydimethylsiloxane, dimethyl silicone oil, hydroxyl silicone oil, methyltriacetoxysilane, ethyltriacetoxysilane, white oil, dibutyltin diacetate, fumed silica, methacryloyloxypropyl polyhedral oligomeric silsesquioxane, octahydro polyhedral oligomeric silsesquioxane, a platinum complex catalyst and an inhibitor. Acidic ion exchange resin and activated carbon. According to the invention, the octahydro polyhedral oligomeric silsesquioxane and the methacryloyloxypropyl polyhedral oligomeric silsesquioxane are subjected to a hydrosilylation reaction, so that a polyfunctional polyhedral oligomeric silsesquioxane material is introduced into the silicone rubber, the interaction force between the pouring sealant and a base material is greatly enhanced, and the adhesion is remarkably improved.

The invention discloses an 8-hydroxyquinoline derivative platinum complex as well as a synthesis method and application thereof. According to the invention, an 8-hydroxyquinoline derivative platinum complex is used as an active ligand and reacts with cis-Pt (DMSO) 2Cl2 to synthesize the 8-hydroxyquinoline derivative platinum complex. The 8-hydroxyquinoline derivative platinum complex has a good inhibition effect on human breast cancer cells MDA-MB-231, shows excellent in-vivo and in-vitro anti-tumor activity, has potential medicinal value, and is expected to be used for preparing various anti-tumor drugs.

The invention discloses a heat-insulating silicone rubber foam material with high elasticity and a preparation method thereof, and relates to the technical field of heat-insulating materials. The invention discloses a heat-insulating silicone rubber foam material with high elasticity. The high-temperature-resistant silicone oil composition is prepared from the following raw materials in parts by weight: 40 to 60 parts of vinyl-terminated phenyl silicone oil, 10 to 30 parts of nano silicon dioxide, 40 to 80 parts of modified fly ash hollow microspheres, 2 to 10 parts of cerium dioxide, 1 to 5 parts of sodium bicarbonate, 3 to 8 parts of self-synthesized single-hydroxyl-terminated single-hydrogen-terminated silicone oil, 5 to 15 parts of self-synthesized perhydrosilicone oil, 4 to 10 parts of diphenyl silanediol and 0.1 to 0.3 part of 1-ethynyl cyclohexanol. 0.3 to 0.5 part of a platinum complex catalyst, 0.5 to 1 part of an antioxidant 1010 and 0.5 to 2 parts of a coupling agent KH-560. The silicone rubber foam material prepared by the invention adopts a two-stage foaming and gradient curing process, combines the modified fly ash hollow microspheres and other fillers, has the advantages of high elasticity, good heat insulation property, aging resistance and the like, is environment-friendly in raw materials and stable in process, and is suitable for buffering and heat insulation between battery cells in the fields of new energy automobiles and energy storage.

Novel compositions and systems for closure of wounds with antimicrobial effectiveness provide devices of improved flexibility and elasticity and are readily applied to wound sites or over wound closure devices. A novel platinum catalyst comprising platinum tetramethyldivinyl disiloxane diethyl maleate complex for use in such compositions provides for rapid curing on topical surfaces such as skin and bonds to such surfaces in about 2-5 minutes.

The present disclosure relates to a binuclear platinum complex luminescent material and application thereof. The binuclear platinum complex luminescent material has the structure of chemical formula (I), exhibiting relatively good luminous efficiency and device lifetime when applied to an organic light-emitting diode. The present disclosure also provides an organic electroluminescent device, including a cathode, an anode, and an organic layer. The organic layer is one or more of a hole injection layer, a hole transport layer, a light-emitting layer, a hole blocking layer, an electron transport layer, and an electron injection layer. At least one of the organic layers includes the compound of structural formula (I).

The invention relates to the technical field of organic silicon catalysis, and discloses a hydrosilylation reaction catalyst and a preparation method thereof, the catalyst is prepared from a platinum complex catalyst solution, maleic anhydride, triphenyl borate, tetraethoxysilane, propylene carbonate and diethylene glycol dibutyl ether; the preparation method comprises the steps of solvent water removal, electronic relay adduct preassembly, active metal introduction, thermal induction aging and the like. An electron-deficient coordination center is constructed through a step-by-step process, the electron cloud density of the platinum center is reduced by utilizing the Lewis acid characteristic of triphenyl borate, and the solvent cage effect of propylene carbonate is matched, so that the high-temperature tolerance of the catalyst is improved, and the generation of platinum black is effectively inhibited; meanwhile, the solubilizing and bridging effects of diethylene glycol dibutyl ether are utilized, the compatibility problem of a high-polarity component and a non-polar silicone oil matrix is solved, and the obtained catalyst has high activity, high regioselectivity and excellent long-term storage stability.

The invention discloses a Karstedt catalyst and a preparation method thereof, and belongs to the technical field of catalysts. The preparation method provided by the invention comprises the following steps: firstly, chloroplatinic acid reacts with three different siloxanes to generate a zero-valent platinum complex, the siloxanes are tetradimethyl vinyl siloxy silane, tetramethyl divinyl disiloxane and 1, 3-dimethyl-1, 1, 3, 3-tetraethylene disiloxane, calcium oxide is added in the reaction to be matched with sodium bicarbonate to neutralize, and then the zero-valent platinum complex is obtained. And after the reaction, reducing residual bivalent platinum by using sodium borohydride, and finally loading by using an SBA15 molecular sieve as a carrier to obtain the finished product Karstedt catalyst. The multi-ligand Karstedt catalyst is formed by combining a tetradentate ligand, a conventional chain ligand and a branched chain polyvinyl ligand, the multi-ligand Karstedt catalyst has high catalytic activity and stability, the loading capacity and the loading binding force are improved through a network architecture of a complex configuration, the dosage of the supported catalyst is reduced, and the cyclic utilization rate is improved.

The invention discloses an 8-hydroxyl dictamnine platinum complex with high activity in vitro and vivo as well as a synthesis method and application thereof. According to the invention, 8-hydroxy dictamnine is used as an active ligand and reacts with cis-Pt (DMSO) 2Cl2 platinum salt to synthesize the 8-hydroxy dictamnine platinum complex. The 8-hydroxyl dictamnine platinum complex can inhibit the growth of human ovarian adenocarcinoma cis-platinum drug-resistant cells SK-OV-3 / DDP in a targeted manner, shows excellent anti-tumor activity, has potential medicinal value, and is expected to be used for preparing various anti-tumor drugs.

The invention belongs to the technical field of organic luminescent materials and semiconductors, and provides a spirofluorene metal platinum complex containing N heteroatoms and an electroluminescent device thereof, and the spirofluorene metal platinum complex containing N heteroatoms has a structure as shown in a formula (1): # imgabs0 #. According to the electroluminescent device, the spirofluorene metal platinum complex containing N heteroatoms is used as a guest luminescent material in a luminescent layer, so that blue light can be emitted, the luminous efficiency is improved, and the service life is prolonged.

The application belongs to the technical field of luminescent materials, and particularly relates to a binuclear platinum complex and application thereof. The binuclear platinum complex has the structure shown in formula (1), and when used in an OLED, especially in a blue light emitting region, the binuclear platinum complex exhibits enhanced phosphorescence quantum yield, good luminescence stability, high luminescence efficiency, and is suitable for use as an emitter material in OLED application. The metal platinum complex of the application can obtain an organic electroluminescent device with deep blue phosphorescence and improved luminescence efficiency, and the luminescent device has good thermal stability. The binuclear platinum complex has the advantages of narrow emission spectrum, high stability and high efficiency by adjusting the structure of the ligand around the metal center and the structure of the substituent on the ligand to control the photophysical properties, and has wide application prospects in many fields such as OLED display and lighting.

Tetradentate platinum complexes including an imidazole / benzimidazole carbene having a structure of Formula Iis disclosed. In Formula I, M is Pd or Pt. These platinum carbenes with the specific substituents disclosed herein are novel and provides phosphorescent emissive compounds that exhibit physical properties that can be tuned, such as sublimation temperature, emission color, and device stability.

The application discloses a platinum complex with controllable activity and a preparation method and application thereof, which is formed by coordination of vinyl siloxane, modified ligand and chloroplatinic acid; the modified ligand is prepared by reaction of maleic anhydride, allylamine and hydroxymethyl dimethyl phosphite. The application introduces amide groups and phosphite groups into the molecular chain of maleic anhydride, uses the groups as coordination compounds to coordinate with vinyl siloxane and platinum, and can improve the normal-temperature storage stability of the platinum catalyst while still keeping high catalytic activity of the platinum catalyst on the hydrosilylation reaction; when the platinum complex is used for catalyzing preparation of addition-type liquid silicone rubber, no inhibitor needs to be added, and the silicone rubber has good mechanical properties.

The present invention relates to a carbazole-modified platinum complex luminescent material and its applications. The platinum complex is a compound having the structure of chemical formula (I). The nitrogen-containing fused ring contained in this series of materials accelerates the triplet radiative transition rate by changing the spin density distribution. This series of materials inhibits molecular aggregation through carbazole modification, reducing the intermolecular π-π effect; while improving the molecular thermal stability, it also improves the luminescence efficiency of the molecule. When this compound is applied in an organic light-emitting diode, it has a low driving voltage and a high luminescence efficiency, and can significantly improve the luminescence efficiency of the material and the device lifetime, and has the potential to be applied in the field of organic electroluminescent devices.

The invention discloses a high-temperature-resistant strong-adhesion repair material and a preparation method and application thereof, and relates to the technical field of defect repair of resin-based heat-insulation composite materials, the repair material comprises a component A and a component B, the component A and the component B are respectively prepared from the following raw materials: the component A comprises a compound film-forming matter, a heat-resistant anti-corrosion compound filler, a heat-insulating filler, composite ceramic powder, a reinforcing filler, a platinum complex catalyst, an anti-poisoning agent and a second solvent; the component B is prepared from vinyl-terminated polysiloxane and hydrogen-containing polysiloxane; the weight ratio of the component A to the component B is (0.5-3): 1. The repairing material disclosed by the invention can be cured at room temperature, has good high-temperature bonding strength (the shear strength at 800 DEG C * 5min is greater than 1.0 MPa), low density, efficient heat insulation, high-speed hot air scouring resistance and the like, is well matched with a heat insulation composite material, and can be applied to rapid repairing of a damaged part of the heat insulation composite material.

The invention discloses an organic light-emitting device which comprises a first electrode, a second electrode and an organic layer between the first electrode and the second electrode. The organic layer comprises a light-emitting layer, the light-emitting layer comprises a P-type main body material, an N-type main body material, a first doping material and a second doping material, the P-type main body material is shown as a formula 1-1 or a formula 1-2, and the N-type main body material is selected from a triazine compound; the first doping material is selected from a platinum complex or a platinum complex; and the second doping material is a B / N type MR-TADF material. The luminous layer of the device improves chemical stability, photoelectric stability and thermal stability of a compound through deuteration at active sites of a GH-P material, improves stability of the device, further prolongs service life, combines GH-N to form a double-main-body material, and is matched with a small amount of precious metal first doping material and second doping material, so that the luminous efficiency of the device is improved. Therefore, better efficiency and longer service life are realized.

The invention provides a rubber composite material as well as a preparation method and application thereof, and belongs to the technical field of bridge supports. The rubber composite material comprises the following raw materials in parts by mass: 100 parts of matrix resin, 35-45 parts of hydroxyl modified fumed silica, 8-12 parts of a plasticizer, 3-5 parts of nano-zinc oxide, 3-5 parts of a composite anti-aging agent, 3-4 parts of a coloring agent, 2-2.8 parts of a cross-linking agent, 1-2 parts of a coupling agent and 0.05-0.1 part of a platinum complex catalyst, wherein the composite anti-aging agent comprises a hindered amine stabilizer and an organic tin antioxidant. The obtained rubber composite material is excellent in weather resistance, free of cracking after ozone exposure and wide in temperature adaptability, the tensile strength is improved by 20%, the compression set is reduced by 52%, the mechanical property is obviously improved, the rubber composite material is applied to a bridge support, the service life of the prepared support can reach 60 years or above, and the service life of the bridge support is greatly prolonged.

The present invention is applicable to the fields of stimulus-responsive light-variable materials, catalysis, fluorescence sensing, biomolecule labeling, information processing and storage, and anti-counterfeiting technology, and provides the synthesis and application of a concentration-solvent-dependent platinum complex luminescent material. The preparation process of the present method is simple and easy to purify. The obtained ionic metal Pt(II) complex phosphorescent material with concentration- and solvent-dependent luminescence changes is stimuli-responsive to solvent and concentration.

The invention provides alkoxy-terminated polysiloxane and a preparation method thereof.107 silicone rubber, a platinum catalyst and an end-capping reagent are mixed and stirred at the room temperature for a dehydrogenation reaction, and the alkoxy-terminated polysiloxane is obtained. The end-capping reagent is obtained by mixing hydrogen-containing double end caps, vinyl siloxane and a platinum complex catalyst and then reacting at the temperature of 20-35 DEG C. The preparation process of the terminated 107 silicone rubber is carried out at room temperature, the raw material cost is low, the process is simple, the condition is mild, and the method is safe and energy-saving. The prepared terminated 107 silicone rubber is colorless transparent liquid, and has the advantages of controllable viscosity, high product termination rate, no viscosity peak and good storage stability. In addition, the reaction endpoint is easy to judge, and the reaction endpoint can be determined according to whether a viscosity peak exists or not.

The invention belongs to the technical field of preparation of organic electroluminescent materials, and particularly relates to a tetradentate ring metal platinum (II) complex, an electronic device and application of the tetradentate ring metal platinum (II) complex. The invention provides a tetradentate platinum (II) complex obtained by introducing 2, 6-diisopropyl phenyl to different positions of carbazole, and the complex has a structure as shown in a formula (I). The introduction of 2, 6-diisopropyl phenyl reduces the interaction between molecules, the group has good solubility, so that the platinum complex has good spin-coating performance, and the provided compound has good chemical stability, can improve and balance the transport of holes and electrons, enables the energy transmission between a subject and an object to be more efficient, and has a good application prospect. Specifically, the compound or the composition provided by the invention is used for improving the current efficiency and prolonging the service life of the organic light-emitting device, and has a great application prospect in the fields of OLED display and illumination.

A method of manufacturing a plating solution comprising a platinum (II) complex, comprising the steps of: (i) preparing an acidic aqueous solution comprising a chloride-free platinum (IV) compound and a source of nitrous acid (HNO2) as a reducing agent; (ii) heating the solution from step (i) in order to promote the reduction of platinum (IV) to platinum (II) and decomposition of residual nitrous acid. Also described is a platinum plating solution produced by this process.

The present invention discloses an N^N^N type terpyridine platinum complex, its preparation method, and application. The present invention relates to the technical field of fluorescent probe material preparation, and specifically to an N^N^N type terpyridine platinum complex, its preparation method, and application. The present invention mixes 4'-(3,4-bisethoxyphenyl)-2,2':6',2''-terpyridine (S1) with K2PtCl4, adds a halogenated hydrocarbon solvent and an alcohol solvent, and conducts a heating reaction. After the reaction, the solvent is removed by reduced pressure distillation, and column chromatography is used for purification to obtain an N^N^N type terpyridine platinum complex. The preparation method of the N^N^N type terpyridine platinum complex of the present invention has readily available raw materials, a simple reaction process, and can be industrially produced. It has specific targeting to lysosomes, low cytotoxicity, and good two-photon absorption activity, and has good application prospects in lysosomal analysis and imaging products.

The present invention provides an ultraviolet-curable silicone composition that can be cured by ultraviolet irradiation without requiring a heating step under the atmosphere and gives a cured product having good adhesive strength. 【Solution means】An ultraviolet-curable silicone composition, characterized in that it contains the following components (A) to (D). (A) A unit represented by the following formula (1), R 1 3SiO 1 / 2 unit, R 1 2SiO 2 / 2 unit and SiO 4 / 2 A unit having a unit as a constituent unit, and an organopolysiloxane resin in which 5% or more of the total number of monovalent organic groups bonded to silicon atoms are aryl groups TIFF2026058401000011.tif2691 (B) An organosilicon compound having two or more hydrogen atoms bonded to silicon atoms in one molecule and having an acryloyloxyalkyl group, a methacryloyloxyalkyl group, an acryloyloxyalkyloxy group, or a methacryloyloxyalkyloxy group bonded to silicon atoms (C) A photoactive platinum complex catalyst (D) A photopolymerization initiator

The present invention relates to a tetradentate platinum complex containing a spirocyclic structure and its application in an organic light-emitting diode. The platinum complex is a compound having a structure of chemical formula (I). Such a material has a high luminescence quantum yield and a short excited state lifetime. When applied in an organic light-emitting diode, it has good luminous efficiency and device stability. The present invention also provides an organic electrophotoelectric device, comprising a cathode, an anode and an organic layer, wherein the organic layer is one or more layers of a hole injection layer, a hole transport layer, a light-emitting layer, a hole blocking layer, an electron transport layer and an electron injection layer, and at least one of the organic layers contains a compound in structural formula (I).

To provide platinum compounds that can be useful as emitters in display and lighting applications.SOLUTION: Platinum compounds of Formulas I and II useful in a variety of devices, such as, for example organic-light emitting diodes (OLEDs).SELECTED DRAWING: Figure 1

The invention belongs to the technical field of chemical analysis and detection. The invention provides a platinum complex fluorescent probe as well as a preparation method and application thereof in detection of water. The chemical formula of the platinum complex fluorescent probe is C23H16ClN3Pt; the preparation method comprises the following steps: 1, under the protection of argon, mixing terpyridine, potassium tetrachloroplatinate, deionized water and dimethyl sulfoxide in a round-bottom flask, heating, stirring, carrying out reflux reaction, cooling to room temperature, adding concentrated hydrochloric acid, carrying out suction filtration to obtain a precipitate, and drying to obtain Pt-Cl; 2, Pt-Cl, phenylacetylene, cuprous iodide, N, N-dimethylformamide and triethylamine are mixed into a round-bottom flask, then argon is pumped and replaced for multiple times, after a reaction, suction filtration is conducted, precipitates are obtained, washing and drying are conducted, and the catalyst is obtained. The platinum complex fluorescent probe is applied to detection of water and has the advantages of specific selectivity, high sensitivity, wide detection concentration range and the like, so that the detection can better meet the current requirements.

The present invention is an ultraviolet-curable silicone composition containing the following components (A)-(D). (A) an organopolysiloxane resin having, as constituent units, a unit represented by formula (1) below, an R1 3SiO1 / 2 unit, an R1 2SiO2 / 2 unit, and an SiO4 / 2unit, wherein 5% or more of the total number of monovalent organic groups bonded to silicon atoms are aryl groups; (B) an organic silicon compound having two or more hydrogen atoms bonded to the silicon atoms in one molecule and having an acryloyloxyalkyl group, a methacryloyloxyalkyl group, an acryloyloxyalkyloxy group, or a methacryloyloxyalkyloxy group bonded to a silicon atom; (C) a photoactive platinum complex catalyst; and (D) a photopolymerization initiator. As a result, the present invention provides an ultraviolet-curable silicone composition that can be cured by ultraviolet irradiation without requiring a heating step in the atmosphere, and that provides a cured product having good adhesive strength.

The invention discloses a narrow half-peak width platinum complex phosphorescent material based on regulation and control of charge density of coordination carbon atoms of a coumarin skeleton and a preparation method thereof, the structural general formula of the material is # imgabs0, regulation and control of the charge density of the coordination carbon atoms can be realized by a CN chelating ligand isomer synthesized by the coumarin skeleton, so that adjustment of MLCT components in an emission spectrum of a platinum complex is realized, and a narrow emission half-peak width and a wide emission spectrum are obtained. The requirement of the current BT.2020 wide color gamut is better met, and a core light-emitting material is provided for an OLED to meet ultrahigh-strength display; dual regulation and control of the emission color and the emission half-peak width of the platinum complex are achieved by regulating and controlling the charge density of coordinated carbon atoms in the coumarin-containing skeleton ligand, the variety of coordinated nitrogen heterocycles is further changed, comprehensive coverage from blue light to near-infrared emission color is achieved, the skeleton containing carbon, oxygen and hydrogen has high stability and rigidity, and the coumarin-containing skeleton ligand can be applied to the field of organic light emitting devices. The compound is an ideal skeleton for developing a practical high-performance narrow-half-peak-width platinum complex phosphorescent material, and has the characteristics of simple synthesis and easy functionalization.

The present invention relates to the field of fluorescent immunochromatography technology, and in particular to an AIPE phosphorescent microsphere and its preparation method and application. The preparation method comprises first synthesizing an AIPE phosphorescent metal platinum complex monomer containing a double bond, wherein the AIPE phosphorescent metal platinum complex monomer uses 2-phenylpyridine as a primary ligand and a Schiff base as an auxiliary ligand, wherein the auxiliary ligand is double-bond modified, and then copolymerizing the complex monomer with styrene and a functional monomer by emulsion polymerization; wherein the functional monomer is methacrylic acid and / or acrylic acid. The AIPE phosphorescent microsphere prepared by the method of the present invention has the advantages of long luminescence lifetime, large Stokes shift, good photostability and no background interference, and can be used in the field of immunochromatography for quantitative detection of a target object.

This invention provides a white OLED device utilizing blue light-emitting materials and platinum or palladium aggregated-state emission, comprising: a cathode, an anode, and an organic functional layer including at least two emission layers, including a blue light layer and a low-energy emission layer. The blue light layer comprises a first matrix material doped with Ir(III) organometallic complexes, and the low-energy emission layer comprises a second matrix material comprising Pt(II) and / or Pd(II) organometallic complexes. When a DC voltage higher than its turn-on voltage is applied, the device emits white light composed of monomeric and aggregated-state emission from the blue emitter and the low-energy platinum complex. This white OLED device eliminates the need for a blue light emitter, achieving a high CRI with only a single emitter.