957results about "Titanium organic compounds" patented technology

Metal films are deposited with uniform thickness and excellent step coverage. Copper metal films were deposited on heated substrates by the reaction of alternating doses of copper(I) NN′-diisopropylacetamidinate vapor and hydrogen gas. Cobalt metal films were deposited on heated substrates by the reaction of alternating doses of cobalt(II) bis(N,N′-diisopropylacetamidinate) vapor and hydrogen gas. Nitrides and oxides of these metals can be formed by replacing the hydrogen with ammonia or water vapor, respectively. The films have very uniform thickness and excellent step coverage in narrow holes. Suitable applications include electrical interconnects in microelectronics and magnetoresistant layers in magnetic information storage devices.

This invention relates to hafnium halide compositions having a zirconium concentration of less than about 1000 parts per million, a process for producing the hafnium halide compositions having a zirconium concentration of less than about 1000 parts per million, organometallic compound precursors, a process for producing the organometallic compound precursors, and a method for producing a film or coating from the organometallic compound precursors. The organometallic compounds are useful in semiconductor applications as chemical vapor or atomic layer deposition precursors for film depositions.

A compound which has thermal stability and moderate vaporizability and is satisfactory as a material for the CVD or ALD method; a process for producing the compound; a thin film formed from the compound as a raw material; and a method of forming the thin film. A compound represented by the general formula (1) is produced by reacting a compound represented by the general formula (2) with a compound represented by the general formula (3). The compound produced is used as a raw material to form a metal-containing thin film. [Chemical formula 1] (1) [Chemical formula 2] (2) [Chemical formula 3] M_p(NR⁴R⁵)_q(3) (In the formulae, M represents a Group 4 element, aluminum, gallium, etc.; n is 2 or 3 according to cases; R¹ and R³ each represents C_1-6 alkyl, etc.; R² represents C_1-6 alkyl, etc.; R⁴ and R⁵ each represents C_1-4 alkyl, etc.; X represents hydrogen, lithium, or sodium; p is 1 or 2 according to cases; and q is 4 or 6 according to cases.)

A precursor for the deposition of a thin film by atomic layer deposition is provided. The compound has the formula MxLy where M is a metal and L is an amidrazone-derived ligand or an amidate-derived ligand. A process of forming a thin film using the precursors is also provided.

An isoreticular metal-organic framework (IRMOF) and method for systematically forming the same. The method comprises the steps of dissolving at least one source of metal cations and at least one organic linking compound in a solvent to form a solution; and crystallizing the solution under predetermined conditions to form a predetermined IRMOF. At least one of functionality, dimension, pore size and free volume of the IRMOF is substantially determined by the organic linking compound.

New ligands, compositions, metal-ligand complexes and arrays with pyridylamine ligands are disclosed that catalyze the polymerization of monomers into polymers. Certain of these catalysts with hafnium metal centers have high performance characteristics, including higher comonomer incorporation into ethylene/olefin copolymers, where such olefins are for example, 1-octene, isobutylene or styrene. Certain of the catalysts are particularly effective at polymerizing propylene to high molecular weight isotactic polypropylene in a solution process at a variety of polymerization conditions.

A CVD Method of forming gate dielectric thin films on a substrate using metalloamide compounds of the formula M(NR¹R²)_x, or

wherein M is Zr, Hf, Y, La, Lanthanide series elements, Ta, Ti, or Al; N is nitrogen; each of R¹ and R² is same or different and is independently selected from H, aryl, perfluoroaryl, C₁-C₈ alkyl, C₁-C₈ perfluoroalkyl, alkylsilyl; and x is the oxidation state on metal M; and an aminosilane compound of the formula H_xSiA_y(NR¹R²)_4-x-y or

wherein H is hydrogen; x is from 0 to 3; Si is silicon; A is a halogen; Y is from 0 to 3; N is nitrogen; each of R¹ and R² is same or different and is independently selected from the group consisting of H, aryl, perfluoroaryl, C₁-C₈ alkyl, and C₁-C₈ perfluoroalkyl; and n is from 1-6. By comparison with the standard SiO₂ gate dielectric materials, these gate dielectric materials provide low levels of carbon and halide impurity.

Compounds, and oligomers of the compounds, are synthesized with cyclic amine ligands attached to a metal atom. These compounds are useful for the synthesis of materials containing metals. Examples include pure metals, metal alloys, metal oxides, metal nitrides, metal phosphides, metal sulfides, metal selenides, metal tellurides, metal borides, metal carbides, metal silicides and metal germanides. Techniques for materials synthesis include vapor deposition (chemical vapor deposition and atomic layer deposition), liquid solution methods (sol-gel and precipitation) and solid-state pyrolysis. Suitable applications include electrical interconnects in microelectronics and magnetoresistant layers in magnetic information storage devices. The films have very uniform thickness and high step coverage in narrow holes.

Antimony, germanium and tellurium precursors useful for CVD/ALD of corresponding metal-containing thin films are described, along with compositions including such precursors, methods of making such precursors, and films and microelectronic device products manufactured using such precursors, as well as corresponding manufacturing methods. The precursors of the invention are useful for forming germanium-antimony-tellurium (GST) films and microelectronic device products, such as phase change memory devices, including such films.

An alkylene and/or silylene bridged binuclear metallocene catalyst for styrene polymerization is represented by the following formula (I): where M1 and M2 are the same or different transition metal of Group IVb of the Periodic Table; Cp1 and Cp2 are the same or different cyclopentadienyl; alkyl, alkoxy, silyl or halogen substituted cyclopentadienyl; indenyl; alkyl, alkoxy, silyl or halogen substituted indenyl; fluorenyl; or alkyl, alkoxy, silyl or halogen substituted fluorenyl, which is capable of pi -electron, eta 5-bonding with M1 or M2; each of E1, E2 and E3, independently of one another, is a carbon atom or a silicon atom; m, p and q are integers of 0 to 15 and m+p+q>/=1; each of R1, R2, R3, R4, R5 and R6, independently of one another, is a hydrogen, an alkyl, an aryl, an alkoxy or a halogen; X is a hydrogen, an alkyl, an alkoxy or a halogen; and n is 3. M1 and M2 may also be in cardin form by mixture of (I) with a compound which abstructs an X gray from each metal atom and substitution then with non-coordinating anions.

The present invention generally relates to compositions comprising and methods for forming functionalized carbon-based nanostructures.

A metal complex comprising a metal compound complexed to a heteroatomic ligand, the metal complex having Structure X:

wherein R¹, R², R³, and R⁴ are each independently an alkyl group, a cycloalkyl group, a substituted cycloalkyl group, an aromatic group, or a substituted aromatic group, R^1c, R^2c, R^3c, R^4c, and R^5c are each independently hydrogen or an alkyl group, and MX_p comprises a group IVB, VB, or VIB metal. A metal complex comprising a metal compound complexed to a diphosphino aminyl ligand comprising at least two diphosphino aminyl moieties and a linking group linking each aminyl nitrogen atom of the diphosphino aminyl moieties.

New ligands and compositions with bridged bis-aromatic ligands are disclosed that catalyze the polymerization of monomers into polymers. These catalysts with metal centers have high performance characteristics, including higher comonomer incorporation into ethylene/olefin copolymers, where such olefins are for example, 1-octene, propylene or styrene. The catalysts also polymerize propylene into isotactic polypropylene.

The present invention provides a metal-organic framework (“MOF”) comprising a plurality of metal clusters and a plurality of multidentate linking ligands. Each metal of the plurality of metal clusters comprises one or more metal ions. Each ligand of the plurality of multidentate linking ligands connects adjacent metal clusters. The present invention also provides a method of forming the metal-organic framework. The method of the invention comprises combining a solution comprising one or metal ions with a multidentate linking ligand having a sufficient number of accessible sites for atomic or molecular adsorption that the surface area of the resulting metal-organic framework is greater than 2,900 m²/g.

Provided are a novel transition metal complex where a monocyclopentadienyl ligand to which an amido group is introduced is coordinated, a catalyst composition including the same, and an olefin polymer using the catalyst composition.

The transition metal complex has a pentagon ring structure having an amido group connected by a phenylene bridge in which a stable bond is formed in the vicinity of a metal site, and thus, a sterically hindered monomer can easily approach the transition metal complex. By using a catalyst composition including the transition metal complex, a linear low density polyolefin copolymer having a high molecular weight and a very low density polyolefin copolymer having a density of 0.910 g/cc or less can be produced in a polymerization of monomers having large steric hindrance. Further, the reactivity for the olefin monomer having large steric hindrance is excellent.

In a method for functionalizing a carbon nanotube surface, the nanotube surface is exposed to at least one vapor including at least one functionalization species that non-covalently bonds to the nanotube surface, providing chemically functional groups at the nanotube surface, producing a functionalized nanotube surface. A functionalized nanotube surface can be exposed to at least one vapor stabilization species that reacts with the functionalization layer to form a stabilization layer that stabilizes the functionalization layer against desorption from the nanotube surface while providing chemically functional groups at the nanotube surface, producing a stabilized nanotube surface. The stabilized nanotube surface can be exposed to at least one material layer precursor species that deposits a material layer on the stabilized nanotube surface.

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 is based upon the discovery that nontitanyl oxalates can enhance the catalytic functionality of titanyl oxalate catalysts. This invention provides a novel catalytic composition containing a titanyl oxalate catalyst and a metallic oxalate catalyst enhancer and optionally containing a metallic cocatalyst such as an antimony based catalyst. A synergistic relationship has been discovered between titanyl oxalate catalyst and the catalyst enhancer. A synergistic relationship has also been discovered between the titanyl oxalate catalyst, catalyst enhancer and a metallic cocatalyst such as antimony oxide or antimony triacetate. Also provided is an improved process of producing polyester by the polycondensation of polyester forming reactants in the presence of a catalytically effective amount of a polycondensation catalyst, wherein the improvement comprises utilizing, as the polycondensation catalyst, the novel catalyst composition containing a titanyl oxalate such as lithium titanyl oxalate and a catalyst enhancer such as a nontitanyl metallic oxalate like lithium oxalate and optionally containing a metallic catalyst such as antimony oxide or antimony triacetate. The improved process produces an improved polyester having lower acetaldehyde numbers and good color. The titanyl oxalate/catalyst enhancer composition can be used as a polycondensation catalyst in combination with other catalysts to achieve synergistic catalytic activity. Preferred is a combination of lithium or potassium titanyl oxalate, Li2 or K2TiO(C2O4)2, lithium or potassium oxalate, Li2 or K2(C2O4)2 with antimony oxide or antimony triacetate or antimony trisglycoxide.

The present invention is directed to novel fluorinated dye stabilizers having both high quenching efficiency and solubility in halogenated solvents. These dye stabilizers have shown a significantly effect on improving the dye fastness in hostile photooxidation conditions.