163 results about "Amine ligands" patented technology

A method of forming (and an apparatus for forming) a metal oxide layer on a substrate, particularly a semiconductor substrate or substrate assembly, using a vapor deposition process and one or more precursor compounds that include organo-amine ligands and one or more precursor compounds that include organo-oxide ligands.

A method of purifying biomolecules with an anion exchanger containing a membrane having a surface having a polymer such as a primary or secondary amine ligand formed thereon, such as polyallylamine. The feedstock is introduced to the exchanger in the presence of one or more ionic-modifiers by themselves or in combination with monovalent salt. The ionic modifier alters the binding ability of the primary amines such that they retain a significant binding capacity for highly charged species such as DNA but lose part or almost all of their binding capacity for less charged species such as viruses or proteins at pH above the pI of the virus or protein.

The present invention provides for substituted metal chelating compounds in which at least two of the chelating atoms are nitrogen which are directly attached to aromatic rings and one or more of those nitrogen atoms has attached thereto a substituent other than hydrogen, and methods for making and using these compounds.

The invention provides a method for preparing chlorinated-2-acetyl-1,10-phenanthroline amine iron (II) complex with the structural formula of formula (I) and an application of the obtained complex as an ethylene oligomerization catalyst, wherein variables in the formula (I) are defined in the specification. According to the method, triethyl aluminum which is adopted as an initial raw material in the process of the preparation of 2-acetyl-1,10-phenanthroline from 1,10-phenanthroline is hydrolyzed and undergoes an oxidation reaction with nitrobenzene to obtain 2-acetyl-1,10-phenanthroline, 2-acetyl-1,10-phenanthroline is condensed with substituted aniline to obtain a 2-acetyl-1,10-phenanthroline amine ligand, and the ligand is reacted with iron dichloride to obtain the complex. The synthetic method of the invention, which has the advantages of less step, simple technology, and catalyst preparation cost reduction, and adopts nontoxic triethyl aluminum to replace potassium cyanide used in routine preparation methods, has a wide industrialization prospect.

An aqueous coating composition comprises a metal oxide selected from the group consisting of bismuth oxide, vanadium oxide, manganese oxide, cobalt oxide, zinc oxide, strontium oxide, yttrium oxide, molybdenum oxide, zirconium oxide, lanthanum oxide, oxides of the lanthanide series of elements and combinations thereof and an electrodepositable binder, the binder comprising (a) a phosphorous-containing group

in which X is a hydrogen, a monovalent hydrocarbon, an alkyl group such as an aminoalkyl group, or an oxygen atom having a single covalent bond to the phosphorous atom, and each oxygen atom has a covalent bond to a hydrogen atom, an alkyl group, an aryl group, an alkylaryl group, an arylalkyl group, or the resin, with the caveat that at least one oxygen atom has a covalent bond to resin; (b) a carboxylate group separated by from 2 to 4 carbons from an ester group; and (c) a tridentate amine ligand. The coating composition can be electrodeposited on a metal substrate to provide superior corrosion resistance.

The invention provides a method of preparing a complex represented by formula (I) of 2-n-butyryl-1,10-phenanthroline condensation amine ferric chloride (II) and application of the prepared complex as a catalyst for ethylene oligomerization, wherein variables in formula (I) are defined in the specification. According to the method, in the process of preparing 2-n-butyryl-1,10-phenanthroline from 1,10-phenanthroline, tri-n-butylaluminum is used as a starting material, then hydrolysis and an oxidation reaction with nitrobenzene are sequentially carried out so as to obtain 2-n-butyryl-1,10-phenanthroline, 2-n-butyryl-1,10-phenanthroline and substituted aniline undergo a condensation reaction so as to prepare 2-n-butyryl-1,10-phenanthroline condensation amine ligand, and the ligand reacts with ferrous chloride so as to obtain a target product. The synthetic method comprises a few procedures, is a simple process, enables preparation cost for the catalyst to be reduced and uses nontoxic tri-n-butylaluminium to substitute potassium cyanide used in normal preparation methods, thereby having a wide industrial prospect.

The invention discloses a catalyst precursor and its preparation method, a catalyst and its application, and an ethylene polymerization method. The catalyst precursor is a bimetallic catalyst precursor which has an open structure shown as a formula I and is based on a salicylaldehyde imine ligand, the preparation method of the catalyst precursor is as follows: under complexation reaction conditions, contacting a compound having a structure shown as a formula IV with a compound with a molecular structure general formula of MCl4 (THF) 2 in an organic solvent; the catalyst provided by the invention comprises the catalyst precursor and alkyl aluminoxane; the invention also provides the application of the catalyst in olefin polymerization, the invention also provides the ethylene polymerization method which is as follows: under olefin polymerization conditions, in the presence of an organic solvent, contacting ethylene with the catalyst precursor and the alkyl aluminoxane for polymerization. The preparation method of the catalyst precursor is simple, and the catalyst is high in catalytic efficiency. The formula I and the formula IV are shown in the specification.

The invention provides a method for preparing a chlorinated 2-benzoyl-1,10-phenanthroline condensed amine iron (II) complex shown in formula I, and its catalytic application in ethylene oligomerization. The preparation method comprises the following steps: orderly performing hydrolysis and an oxidation reaction with nitrobenzene of initial reaction raw materials of 1,10-phenanthroline and benzyl lithium to obtain 2-benzoyl-1,10-phenanthroline, then performing condensation of 2-benzoyl-1,10-phenanthroline with substituted aniline to obtain 2-benzoyl-1,10-phenanthroline condensed amine ligand, and reacting the ligand with ferrous chloride to obtain a target product I. The synthetic method provided by the invention is few in steps, and simple in process, substitutes nitrobenzene for selenium dioxide in the prior art for the oxidation reaction, substitutes nontoxic benzyl lithium for hypertoxic potassium cyanide in the prior art, reduces the preparation cost of the catalyst, and has wide industrialization prospects.

The invention provides a perovskite film, a perovskite electroluminescence device and a preparation method and a display device and belongs to the technical field of display. The perovskite film comprises a crystallized perovskite material on a substrate and an amine ligand material which is grafted on the crystallized perovskite material. As the crystallized perovskite material in the perovskitefilm is grafted with the halogenated amine ligand material, the perovskite film has a smooth surface, the crystallized perovskite material has a high surface cover rate and has no conspicuous pore defect, and meanwhile, as the halogenated amine ligand material is additionally used in the perovskite film, the perovskite film provided by the invention has a very high fluorescence quantum yield.

The invention discloses a preparation method of a supercritical carbon dioxide (CO2) foaming nucleating agent. The preparation method comprises the steps that porous silica or porous titania and a modifying reagent are subjected to a modification reaction in a toluene solvent under the condition of heating reflux, and modified powder is obtained after the reaction is completed; the modified powder reacts with an initiator and triethylamine in an anhydrous dichloromethane solvent at a normal temperature in a nitrogen atmosphere for 12 to 24 hours, and powder loaded with the initiator is prepared after the reaction is completed; a CuBr catalyst and a pentamethyl diethylene triamine ligand are added to the powder loaded with the initiator and ionic liquid in an anhydrous acetonitrile solvent to conduct a graft polymerization reaction at a temperature of 110 to 120 DEG C in a nitrogen atmosphere for 24 to 36 hours; and after the reaction, a reaction solution is post-processed to obtain the supercritical CO2 foaming nucleating agent. Material of the nucleating agent prepared according to the preparation method has a certain CO2-friendly substance loading amount, so that the CO2 adsorption capacity is improved, nucleation energy can be well reduced, the nucleation efficiency is improved, the cell size of a polymer foaming material is reduced, and the cell density is increased.

A coating layer prepared from an aqueous electrodeposition coating composition comprising an electrodepositable binder, the binder comprising a tridentate amine ligand-containing resin, and optionally further comprising a metal oxide selected from the group consisting of bismuth oxide, vanadium oxide, manganese oxide, cobalt oxide, zinc oxide, strontium oxide, yttrium oxide, molybdenum oxide, zirconium oxide, lanthanum oxide, and oxides of the lanthanide series of elements provides corrosion protection to a metallic substrate.

The invention discloses a method for preparing aromatic alkynes through cross-coupling of nitroaromatic hydrocarbons and aryl-terminated alkynes under the catalysis of transition metal. The method comprises a step of subjecting nitroaromatic hydrocarbons and aryl-terminated alkynes to a cross-coupling reaction in a solution system of a palladium-containing catalyst, a copper-containing catalyst, aphosphine ligand and an amine ligand in a protective atmosphere so as to obtain aromatic alkynes. According to the method, the cheap, easily available and polar nitroaromatic hydrocarbons are used asan electrophilic reagent for synthesis of the aromatic alkynes, so a series of advantages in traditional Sonogashira coupling can be compensated. The method of the invention has the following advantages: (1) usage of expensive halogenated hydrocarbons hard to prepare can be avoided; (2) in the process of multiple coupling reactions, the polarity of nitro groups allows coupling products to have polarity different from the polarity of raw materials and by-products, so the coupling products can be easily separated through column chromatography; and (3) the transition metal is employed for homogeneous catalysis, so cross-coupling is expected to be smoothly carried out under mild conditions, and the tolerance range of function groups is wide.

The invention provides a method for preparing a coordination compound chlorination2-formoxyl-1, 10-phenanthroline condensation amine and iron (II) in a formula (I) and application of the coordination compound as an ethylene oligomerization catalyst. Variants in the formula (I) are defined in the specification. In the process for preparing 2-formoxyl-1, 10-phenanthroline by 1, 10-phenanthroline, the method adopts trimethyl aluminum as a starting material and then conducts hydrolysis and oxidizing reaction with nitrobenzene to obtain 2-formoxyl-1, 10-phenanthroline, then the 2-formoxyl-1, 10-phenanthroline is condensed with substitution aniline to obtain 2-formoxyl-1, 10-phenanthroline condensation amine ligand, and the ligand reacts with ferrous chloride to obtain the target product. The preparation method is few in step and simple in process, reduces catalyst preparation cost, adopts non-toxic trimethyl aluminum to replace potassium cyanide used in a routine preparation method, and is wide in industrial prospects.

Disclosed are tris(triazolylmethyl)amine ligands, and kits and methods for labeling and/or imaging a biomolecule of interest in a subject or living system.

Process for preparing optically active beta-amino alcohols represented by a general formula (2): Ra-C*H(OH)-C*H(Rb)-Rc wherein Ra and Rc are each independently hydrogen, optionally substituted alkyl, optionally substituted cycloalkyl, Rb is one member selected from among groups represented by the following general formulae; (3) R1CO(R2)N-, and (4) R1CO(R1'CO)N-, and C* is an asymmetric carbon atom, characterized by reacting a racemic alpha-aminocarbonyl compound represented by the general formula (1): Ra-CO-CH(Rb)-Rc, with hydrogen in the presence of an optically active transition metal compound represented by a general formula (7): MaXY(Px)m(Nx)n wherein Ma represents a metal atom belonging to VIII-group of the periodic law, X and Y represent each independently hydrogen, halogeno, Px represents a phosphine ligand, Nx represents an amine ligand, at least one of Px and Nx is optically active, and m and n each independently represent 0 or an integer of 1 through 4 and a base.

An aqueous electrodeposition coating composition comprising a cathodically electrodepositable binder, the binder comprising a phosphorylated resin and a carboxyl group separated by from 2 to 4 carbons from an ester group, provides corrosion protection equivalent to that obtained by the conventional phosphate pretreatment-electrodeposition coating process. The aqueous coating composition may comprise a metal oxide selected from the group consisting of bismuth oxide, vanadium oxide, manganese oxide, cobalt oxide, zinc oxide, strontium oxide, yttrium oxide, molybdenum oxide, zirconium oxide, lanthanum oxide, oxides of the lanthanide series of elements and combinations thereof. The phosphorylated resin may comprise a phosphorous-containing group in which X is a hydrogen, a monovalent hydrocarbon, an alkyl group such as an aminoalkyl group, or an oxygen atom having a single covalent bond to the phosphorous atom, and each oxygen atom has a covalent bond to a hydrogen atom, an alkyl group, an aryl group, an alkylaryl group, an arylalkyl group, or the resin, with the caveat that at least one oxygen atom has a covalent bond to resin. The aqueous coating composition may comprise a tridentate amine ligand.

A blend of polymers comprising from 5 to 95 weight % of a polymer having a high molecular weight made using a single site type catalyst and from 95 to 5 weight % of a polymer having a lower molecular weight made using a catalyst containing a phenoxide, preferably a salicylaldimine ligand, has an excellent toughness and would be suitable for use in applications such as polyolefin pipes.