257results about "Gold organic compounds" patented technology

A series of noble metal organometallic complexes of the general formula (I): ML_aX_b(FBC)_c, wherein M is a noble metal such as iridium, ruthenium or osmium, and L is a neutral ligand such as carbonyl, alkene or diene; X is an anionic ligand such as chloride, bromide, iodide and trifluoroacetate group; and FBC is a fluorinated bidentate chelate ligand such as beta diketonate, beta-ketoiminate, amino-alcoholate and amino-alcoholate ligand, wherein a is an integer of from zero (0) to three (3), b is an integer of from zero (0) to one (1) and c is an 10 integer of from one (1) to three (3). The resulting noble metal complexes possess enhanced volatility and thermal stability characteristics, and are suitable for chemical vapor deposition(CVD) applications. The corresponding noble metal complex is formed by treatment of the FBC ligand with a less volatile metal halide. Also disclosed are CVD methods for using the noble metal complexes as source reagents for deposition of noble metal-containing films such as Ir, Ru and Os, or even metal oxide film materials IrO₂, OsO₂ and RuO₂.

Disclosed herein are diagnostic assays using surface enhanced Raman spectroscopy (SERS)-active particles, including liquid-based assays; magnetic capture assays; microparticle-nanoparticle satellite structures for signal amplification in an assay; composite SERS-active particles useful for enhanced detection of targets; and sample tubes and processes for using the same.

Metal complexes that exhibit multiple radiative decay mechanisms, together with methods for the preparation and use thereof.

The present invention relates to a method of functionalizing a carbon material. A carbon material is contacted with a carboxylic acid, whereby a mixture is formed. The mixture is heated for a suitable period of time at a temperature below the thermal decomposition temperature of the carbon material.

The invention provides a coordination polymer material with a multistage pore passage structure and a preparation method thereof. The coordination polymer material with a multistage pore passage structure is internally provided with the multistage pore passage structure, the multistage pore passage structure is a microporous and/or mesoporous and/or macroporous multistage pore passage structure which is formed by the self assembly between the metal ion and the organic ligand, the apertures of the micropores are less than or equal to 2nm, the apertures of the mesopores are from 2nm to 50nm, and the apertures of the macropores are more than 50nm. The coordination polymer material with a multistage pore passage structure is large in specific surface, the large-size organic ligand does not need to be synthesized, and the coordination polymer material with larger porous sizes can be obtained without the template agent and the pore assisting agent, so that the invention is simple in preparation method, and low in cost.

The present invention provides for a method to increase the triplet yield of a photosensitizer by the coupling to metal surface plasmons which leads to increased singlet oxygen generation by electric field enhancement or enhanced energy absorption of the photosensitizer. The extent of singlet oxygen enhancement can be tuned for applications in singlet oxygen based clinical therapy by modifying plasmon coupling parameters, such as metallic nanoparticle size and shape, photosensitizer/metallic nanoparticle distance, and the excitation wavelength of the coupling photosensitizer.

The invention discloses a method for synthesizing a metal N-heterocyclic carbene complex. The method comprises the following steps of: adding a nickel N-heterocyclic carbene complex and a metal precursor at a molar ratio of 1: (0.5-2) in an organic solvent such as acetonitrile, acetone or nitromethane, and reacting for 1-24 hours at the temperature of 35-70 DEG C; and after the reaction is completed, crystallizing and purifying so as to obtain the metal N-heterocyclic carbene complex. The method has the advantages of mild reaction conditions, simplicity in post-treatment and high yield; a cheap and available N-heterocyclic carbene complex is used so as to replace the traditional silver N-heterocyclic carbene complex to serve as a carbene transfer reagent, which is a further development for the synthesis method of the metal N-heterocyclic carbene complex, thus a foundation is laid for industrialized application of a transition metal N-heterocyclic carbene catalyst.

A class of luminescent gold(III) compounds containing a tridentate ligand with one strong σ-donating group having the chemical structure depicted by generic formula (I):

A single electron transistor device for sensing at least one particle, includes at least two electrodes positioned with a gap formed between the electrodes and an activation object positioned in the gap with an insulating layer between the activation object and each electrode. The activation object which is able to transfer electrons is arranged with at least one binding structure bonded to it for receiving the at least one particle. The electrodes are formed with an inter distance of less than 50 nm and the electrodes are connectable directly or indirectly to a signal acquisition system. The sensing device is arranged to allow a tunnelling current proportional to the presence of the at least one particle in the binding structure, to flow through the activation object. A method, and system using a single electron transistor device fabricated with micro/nano fabrication methods are also disclosed.

Metal ketoiminate or diiminate complexes, containing copper, silver, gold, cobalt, ruthenium, rhodium, platinum, palladium, nickel, osmium, or indium, and methods for making and using same are described herein. In certain embodiments, the metal complexes described herein may be used as precursors to deposit metal and metal-containing films on a substrate through, for example, atomic layer deposition or chemical vapor deposition conditions.

Metal complexes, containing copper, silver, gold, cobalt, ruthenium, rhodium, platinum, palladium, nickel, osmium, and/or indium, and methods for making and using same are described herein. In certain embodiments, the metal complexes described herein may be used as precursors to deposit metal or metal-containing films on a substrate through, for example, atomic layer deposition or chemical vapor deposition conditions.

The invention provides a chiral sulfinylamine monophosphine and a preparation method thereof. The preparation method comprises the following steps: carrying out a condensation reaction of 2-disubstituted phosphinoaryl(heteroaryl)formaldehyde (ketone) 2 and chiral sulfonamide 3 to obtain a compound 4, and reacting the compound 4 with a nucleophilic reagent to prepare a compound 1; or carrying out a condensation reaction of aldehyde (ketone) 5 and the chiral sulfonamide 3 to obtain imine 6, and reacting the imine 6 with a 2-disubstituted phosphinoaryl(heteroaryl) metal reagent to obtain the compound 1; or reacting the imine 6 with the 2-disubstituted phosphinoaryl(heteroaryl) metal reagent to obtain a compound, and reducing the compound to obtain the compound 1; or carrying out a condensation reaction of 2-substituted phosphinoaryl(heteroaryl)formaldehyde (ketone) 8 and the chiral sulfonamide 3 to obtain an imine compound 9, reacting the imine compound 9 with the nucleophilic reagent to obtain a compound 7, and reducing the compound 7 to obtain the compound 1. Different chiral sulfenamides and different metal reagents are used to conveniently obtain the optically pure compound of four configurations comprising (R,R), (R,S), (S,S) and (S,R). The above ligand has the advantages of simple skeleton, synthesis convenience and easy reconstruction, can be applied in various metal-catalyzed asymmetric reactions, and has a very high reaction activity and stereoselectivity.

The present invention provides an inclusion compound having a cucurbituril derivative of the formula 1 as a host molecule and a metal complex of the formula 2 as a guest molecule. A pharmaceutical composition having an anticancer effect can be obtained by using the inclusion compound according to the present invention. The pharmaceutical composition can prevent effective components from being biologically degraded in vivo and can exhibit continuous drug effect for a long time just by a single dosage by controlling the release time of the platinum complex once it reaches target tumor cells.

Nitrogen containing analogs of Copper II beta-diketonates which analogs are more stable source reagents for copper deposition when substantially free of solvents of excess ligands. The nitrogen containing analogs replace -O- with -N(R'')-wherein R'' is an alkyl group having from one to four carbon atoms. Replacement of each -O- is preferred although replacement of one -O- per cyclic ring is sufficient to improve stability of the copper source reagents. The source reagent can be purified by sublimation to remove solvents and excess ligands prior to semiconductor processing.

The invention belongs to the field of anionic type gold complex, and specifically provides an anionic type gold complex and an application thereof. The complex is characterized in that: a complex anion [AualphaLm]<-phi> formed by gold and a ligand contanining no free cyanogen (also known as complexing agent) L is adopted as a core component. Phi is the negative charge number of the complex anion [AualphaLm]<-phi>. The general chemical formula of a corresponding gold compound is Mr[AualphaLm]q.bH2O. L represents the ligand containing no free cyanogens, m represents a coordination number, M and r respectively represents an anion and a number thereof, b represents the number of crystal water, and alpha, m and phi are positive integers which are not 0. With a coordination reaction of a material containing gold and a material containing the ligand L, the compound can be prepared. The compound can be applied in fields such as electroplating and chemical plating.

The invention provides a process for the preparation of a surface-functionalized nanoparticle comprising: (a) reacting a nanoparticle with a functionalized silane and a base in a substantially non-aqueous solvent to obtain a partially conjugated silanated nanoparticle, wherein the functionalized silane and the base are present in relative amounts such that said functionalized silane undergoes substantially only a single hydrolysis reaction; (b) reacting the partially conjugated silanated nanoparticle formed in step (a) with a base in a solvent in which the partially conjugated silanated nanoparticle is substantially insoluble and in which the base is substantially soluble. The invention also provides a surface-functionalized nanoparticle prepared therefrom and a bioconjugate comprising said a surface-functionalized nanoparticle.

Provided herein is a method of treating cancer by the administration of binuclear gold(I) compounds in patients in need thereof. The pharmaceutical compounds possess anti-cancer activity such as the induction of cell death, inhibition of cellular proliferation, inhibition of thioredoxin reductase activity, and inhibition of tumor growth in vivo.

The present invention provides phosphorescent materials and polymer phosphorescent materials that generate lights of various colors including blue, green, yellow, orange and red, which are useful for high performance multicolor organic light-emitting EL devices, and also provides an organic light emitting device material containing a gold complex represented by formulae such as (2) and (6) below (symbols in the formulae are as described in the specification) in which gold is bonded to at least one atom selected from carbon, oxygen and sulfur, and organic light-emitting EL device including the material in its light-emitting layer.

The invention discloses a surface self-assembly gold nanoprobe with the free radical capture performance and a preparing method and the application thereof. The surface self-assembly gold nanoprobe with the high free radical capture performance is prepared by the following steps: the surface of a gold nano-particle is connected with nitrone free radical probe ligand with the structure of formula II by a connexon of the structure of formula I. The nitrone free radical probe ligand is connected with R3 radical group end. The gold nano-particle is connected with sulfhydryl end of the connexon. In formula Ia and formula Ib, R3 is -OH, -NH2 or -COOH, n is equal to 2-11, and n1 is equal to 1-4. In formula IIc, R1 is -P(O)(OC2H5)2, and R2 is OH, COOH or CH2OH. The surface self-assembly gold nanoprobe with the high free radical capture performance can capture free radicals under low concentration and can be applied as an antioxidant.

Provided is luminescent gold nanomaterial functionalized by N-(4-aminobutyl)-N-ethylisoluminol, methods of preparation and application thereof. The functionalized gold nanoparticle nanomaterial are formed by N-(4-aminobutyl)-N-ethylisoluminol bonding to the surface of the gold nanomaterial. The functionalized gold nanomaterial are prepared by directly reducing chloroauric acid with N-(4-aminobutyl)-N-ethylisoluminol, wherein N-(4-aminobutyl)-N-ethylisoluminol acts as reducer and stabilizer simultaneously. The preparation method is simple, fast and no need of special conditions. The preparation methods can be performed in a wide temperature range, for example, 15-35° C. The size and pattern of the functionalized gold nanomaterial can be specified by choosing the ratio of chloroauric acid to N-(4-aminobutyl)-N-ethylisoluminol. The obtained functionalized nano gold particles exhibit excellent chemiluminescence properties. Said functionalized gold nanomaterial can be combined with biomolecules to form biomolecular probe, which can be used for immunoassay, nucleic acid analysis, molecular imaging, sensor, etc., and has a broad application prospect in the field of clinical analysis biomedicine, food safety, and environment monitoring.

It is an object of the present invention to provide a novel mass spectrometry method which overcomes the conventional problems mentioned above, which can analyze at a high sensitivity and high accuracy a chemical reaction on a surface of a self-organized membrane bound to a metal, and which can be applied to analysis of structures of a sugar chain in future. According to the present invention, a method for performing mass spectrometry of sulfur atom-containing derivatives of an organic residue, characterized in that the method includes ionizing a metal-organic residue complex into the derivatives, wherein the complex has the organic residue bound through a sulfur atom to the metal is provided, thereby solving the above problems.

The present invention provides a method for producing nanoparticles by attaching atoms or molecules constituting a nanoparticle precursor to an ionic liquid. According to this method, it is possible to produce nanoparticles that do not aggregate easily in a liquid without its surface modification. Furthermore, it is possible to produce nanoparticles without the need for a complicated operation or the formation of a by-product because of the direct production of the nanoparticles from the nanoparticle precursor.