236results about "Titanium organic compounds" patented technology

The invention discloses a piezoelectric dissimilar metal co-doped titanium-oxygen cluster compound as well as a preparation method and application thereof, and relates to the field of materials. The molecular formula of the piezoelectric dissimilar metal co-doped titanium-oxygen cluster compound is H2Ti26Pb10 (mu4-O) 4 (mu3-O) 34 (mu2-O) 6Bz38. 6MeCN. 2 (C4H9ON), and the molecular formula of the piezoelectric dissimilar metal co-doped titanium-oxygen cluster compound is Ti26Pb10, and the molecular formula of the piezoelectric dissimilar metal co-doped titanium-oxygen cluster compound is Ti26Pb10. Wherein mu3-O represents a three-bridged O atom, mu2-O represents a two-bridged O atom, mu4-O represents a four-bridged O atom, Bz represents a benzoic acid ligand, MeCN represents an acetonitrile solvent molecule, and C4H9ON represents a morpholine solvent molecule. The adopted preparation method is simple, raw materials are easy to obtain, aftertreatment is simple, pollution is little, and the green and environment-friendly requirements are met. The piezoelectric dissimilar metal co-doped titanium-oxygen cluster compound prepared by the preparation method disclosed by the invention is relatively high in stability, has piezoelectric activity and has a relatively high degradation rate on antibiotics.

An object of the present invention is to provide: a compound for forming a metal-containing film providing a resist middle layer film by which a good pattern shape can be obtained, and that has a high adhesion to a resist upper layer film and suppresses the collapse of a fine pattern in a fine patterning process during a semiconductor device manufacturing process; a composition for forming a metal-containing film using the compound; and a patterning process using the composition. This provides: a compound (A) for forming a metal-containing film, wherein the compound (A) for forming a metal-containing film is a compound comprising at least one kind of metal atom selected from the group consisting of Ti, Zr, and Hf and a ligand coordinated to the metal atom, and at least one of the ligands is derived from the organic sulfonic acid compound represented by the following formula (s):

To provide a titanium oxide composition with excellent storage stability, by which a titanium oxide coating with superior film formability can be obtained, the coating being capable of forming a thick film without cracks during calcination.SOLUTION: A titanium carboxylate composition comprising a chain crosslinked body A of a titanium carboxylate represented by the general formula (1), a cyclic crosslinked body B of a titanium carboxylate represented by the general formula (2), and a titanium carboxylate C represented by the general formula (3), wherein the ratio of the total mass of A and B to the mass of C is 30:70 to 90:10, and the mass ratio of A to B is 20:80 to 99:1. General formula (1): (R1COO)l(R2O)mTinOn-1 (R1 and R2 are aliphatic hydrocarbon groups; n is 2-10; l+m=2n+2; 0≤m≤l). General formula (2): (R3COO)2pTipOp (R3 is an aliphatic hydrocarbon group; p is 3-10). General formula (3): (R4COO)q(R5O)4-qTi (R4 and R5 are aliphatic hydrocarbon groups; q is 1-4).SELECTED DRAWING: None

To provide a compound for forming a metal-containing film that provides a resist intermediate layer capable of achieving a favorable pattern shape in fine patterning processes of semiconductor device production, while ensuring strong adhesion to a resist upper layer film and suppressing the collapse of fine patterns, a composition for forming a metal-containing film using the compound, and a pattern formation method using the composition.SOLUTION: There is provided (A) a compound for forming a metal-containing film, wherein the compound for forming a metal-containing film comprises at least one metal atom selected from the group consisting of Ti, Zr, and Hf, and a ligand coordinated to the metal atom, wherein at least one of the ligands is derived from an organosulfonic acid compound represented by the formula (s).SELECTED DRAWING: None

The present invention relates to a phosphine-phenol transition metal complex and preparation method therefor and use thereof. The structural formula of the phosphine-phenol transition metal complex is shown in formula (I), wherein, M is selected from Group IVB metals; Ar is selected from substituted or unsubstituted C6-C20 aryl; X is selected from halogen, C1-C10 hydrocarbyl, n is 1 or 2. The phosphine-phenol transition metal complex, when used as a primary catalyst of an olefin polymerization catalyst, can achieve higher activity in catalyzing olefin polymerization. The obtained polymer has a higher molecular weight, a narrower molecular weight distribution, and excellent copolymerization properties.

The application provides a metallocene complex containing amidine group structure. The metallocene catalyst containing amidine group structure provided by the application has double chelated η2-type coordination side arms, can have stronger interaction with the central metal, can reduce the positive electricity of the metal, is more favorable to the stability of the metal center, and improves the temperature resistance of the catalyst. The catalyst can still catalyze ethylene and alpha-olefin copolymerization at 180 DEG C and has higher catalytic activity, alpha-olefin insertion rate and higher molecular weight, is suitable for the needs of large-scale industrial production, and has important industrial application prospect.

The present invention is a compound for forming a metal-containing film, containing: at least one kind of metal atom (a) selected from the group consisting of Ti, Zr, and Hf; and a polydentate ligand coordinated to the metal atom (a), where the polydentate ligand is derived from a compound (b) having 1 to 50 carbon atoms and being substituted with at least one kind of halogen atom selected from the group consisting of a chlorine atom, a bromine atom, and an iodine atom. This can provide: a compound for forming a metal-containing film to be used for forming a metal-containing film that can contribute to the improvement of sensitivity while maintaining the LWR of the upper layer resist; a composition for forming a metal-containing film, containing the compound; and a patterning process using the composition.

The invention belongs to the technical field of chemical synthesis of semiconductor materials, and particularly relates to a synthesis method of tetra (dimethylamino) titanium, which comprises the following steps: (1) reacting titanium tetrachloride with dimethylamine to generate an intermediate TiClx [N (CH3) 2] 4-x, where x is an integer from 0 to 4; (2) reacting dimethylamine with an organic metal lithium reagent to synthesize lithium dimethylamino (LiN (CH3) 2); and (3) reacting the intermediate obtained in the step (1) with lithium dimethylamino obtained in the step (2) to obtain tetra (dimethylamino) titanium. By adopting a step-by-step reaction strategy, the dependence on expensive n-butyllithium is fundamentally reduced, the raw material cost is remarkably reduced, meanwhile, the reaction process is optimized by generating an intermediate, the product yield is greatly improved, the generation of byproducts is effectively reduced, and the product purity is improved.

The invention discloses a high-temperature-resistant high-activity metallocene catalyst and application thereof, and belongs to the technical field of olefin polymerization catalysts. The catalyst provided by the invention is formed by taking a fused ring structure with a rigid framework as a ligand framework and coordinating with transition metal titanium, zirconium or hafnium, so that the catalyst has excellent thermal stability and high catalytic activity, and is suitable for copolymerization reaction of ethylene and alpha-olefin. In the high-temperature polymerization reaction, the catalyst provided by the invention realizes efficient copolymerization of ethylene and alpha-olefin, and the obtained copolymer not only has higher molecular weight, but also has higher comonomer insertion amount, so that the structure and performance of the product are effectively regulated and controlled.

Compounds suitable for use in the polymerization of olefins, such as ethylene, are described. Further described are processes for polymerizing olefins using the described compounds. The compounds exhibit high polymerization activity and provide polyolefins with commercially desirable properties, including high molecular weight and low polydispersity.

The present application provides a compound used as a coating agent for providing a particle having excellent dispersibility and refractive index, a particle having a surface coated with the compound, a production method thereof, and a dispersion composition containing the particle. The compound according to the present application has a structure represented by Formula (1). In the formula, R 1 represents an organic group having 1 to 30 carbon atoms, R 2 represents OR 3 or a group represented by Formula (2), R 3 represents an organic group having 1 to 30 carbon atoms, n1 and n2 represent an integer of 0 or more, n1 + 2 x n2 represents a valence number determined by the kind of L, L represents aluminum, gallium, yttrium, titanium, zirconium, hafnium, bismuth, tin, vanadium, or tantalum, * represents a bonding site, and R 4 and R 5 represent an organic group having 1 to 30 carbon atoms which can have an oxygen atom. The particle according to the present application has a structure represented by Formula (1) on the surface.

The application relates to the technical field of olefin polymerization, and discloses an ether metal complex and a preparation method and application thereof. The structural formula of the ether metal complex is shown in formula (I): wherein R1, R2, R3 and R4 are each independently selected from one of hydrogen, C1-C10 alkyl and halogen; X is each selected from O or S; and M is selected from IVB group metal. The ether metal complex is applied to ethylene polymerization as a catalyst, has high reactivity, good thermal stability, shows extremely strong control performance on the molecular weight of polyethylene wax, and highly linear low-molecular-weight polyethylene is obtained. Formula (I)

The present invention discloses a titanium-porous organic cage photocatalyst, a preparation method thereof, and an application thereof. The present invention utilizes a resorcinol cup[4]arene-based porous organic cage HPOC-401 as a raw material, and obtains a titanium-porous organic cage HPOC-401-Ti photocatalyst with highly dispersed metal sites through a post-modification metallization reaction (PSM). This invention provides a new method for preparing an inorganic-organic composite photocatalyst containing titanium. The method requires inexpensive materials, has a simple preparation process, is easy to operate, has a low reaction temperature, and the obtained product has a large specific surface area, good stability and repeatability, and has strong operability and practicality. The method has potential application value and strong practicality in the photocatalytic degradation of dye pollutants in water.

To provide a metal-containing film-forming compound that provides a resist intermediate film capable of obtaining a good pattern profile in a fine patterning process in semiconductor device fabrication step, exhibiting high adhesion to a resist upper layer and preventing collapse of fine patterns, as well as a metal-containing film-forming composition using the compound and a pattern formation method using the composition.SOLUTION: A metal-containing film-forming compound includes at least one metal atom selected from the group consisting of Ti, Zr, and Hf, and a ligand coordinated to the metal atom via an oxygen atom, and the ligand has a ring structure (t) selected from a ring having 4 or more carbon atoms and containing one or more oxygen atoms, a ring having 3 or more carbon atoms and containing two or more oxygen atoms, and a ring having 3 or more carbon atoms and containing one or more oxygen atoms and one or more hetero atoms different from oxygen atoms.SELECTED DRAWING: Figure 1

In some embodiments, a catalyst compound is represented by Formula (I): M is a group 3-5 metal, a lanthanide metal atom, or an actinide metal atom. E is a substituted polycyclic arenyl ligand bonded to M and is substituted by at least one ferrocenyl substituent bonded to an aromatic six-membered ring of the polycyclic arenyl ligand. A is a monoanionic ligand bonded to M. n is 0 or 1. T is bonded to A and E, and is a bridging group containing a group 13, 14, 15, or 16 element, and is present when n is one and absent when n is zero. Each instance of X is independently a univalent anionic ligand, or two Xs are joined and bound to M to form a metallocycle ring, or two Xs are joined to form a chelating ligand, a diene ligand, or an alkylidene ligand.

The present invention is a compound for forming a metal-containing film, containing: at least one metal atom selected from the group consisting of Ti, Zr, and Hf; and a ligand coordinated to the metal atom via an oxygen atom, where the ligand has a cyclic structure (t) selected from a ring having 4 or more carbon atoms and containing 1 or more oxygen atoms, a ring having 3 or more carbon atoms and containing 2 or more oxygen atoms, and a ring having 3 or more carbon atoms and containing 1 or more oxygen atoms and 1 or more heteroatoms other than oxygen atoms. This can provide: a compound for forming a metal-containing film that gives a resist middle layer film that makes it possible to obtain an excellent pattern profile, has high adhesiveness to a resist upper layer film, and suppresses fine-pattern collapse in a fine patterning process of a semiconductor device manufacturing process; a composition for forming a metal-containing film, containing the compound; and a patterning process using the composition.

Provided in this disclosure are titanium complexes that contain 1) a cyclopentadienyl ligand; 2) an adamantyl-phosphinimine ligand; and 3) at least one activatable ligand. The use of such a complex, in combination with an activator, as an olefin polymerization catalyst is demonstrated. The catalysts are effective for the copolymerization of ethylene with an alpha olefin (such as 1-butene, 1-hexene or 1-octene) and enable the production of high molecular weight copolymers (Mw greater than 25,000) at high productivity under solution polymerization conditions.

The multilayer molecular film photoresist includes a plurality of molecular beams each extending upwardly of a substrate and arranged laterally, each of the molecular beams being formed by bonding a plurality of inorganic monomolecules with organic monomolecules interposed between at least some of the inorganic monomolecules.

Organometallic complexes useful as prepolymerization catalysts that may form part of an olefin polymerization catalyst system are described. The catalyst system is used for the polymerization of ethylene, and optionally contains one or more C 3-12 They are used in the polymerization of ethylene with alpha-olefin comonomers. Organometallic complexes are broadly represented by formula I: TIFF2025510021000316.tif59108 where L is a bridging group comprising a continuous chain of atoms connecting P and Cy, the continuous chain comprising 2 or 3 atoms, and Cy is a cyclopentadienyl-type ligand. The olefin polymerization catalyst system is effective for polymerizing ethylene and alpha-olefins in a solution phase polymerization process at high temperatures to produce ethylene copolymers having high molecular weights and high alpha-olefin incorporation. Premetallation compounds, metallation processes, synthetic methods for making the organometallic complexes, and polymerization processes are also described.

An object of the present invention is to provide a MOF which is highly water-adsorbent even in an environment with low relative pressure. The present invention is a metal organic framework comprising a predetermined organic ligand and metal ion, wherein a ratio of a largest pore diameter L to a smallest pore diameter S (the largest pore diameter L / the smallest pore diameter S) determined through the following procedures (a1) to (a3) is 1.0 to 2.0, and a decomposition start temperature is higher than 200°C. (a1) a crystal structure determined through X-ray crystal structure analysis is displayed using a space-filling model, and presence or absence of the through pores is observed under a predetermined condition, to identify a through pore Pmax having the largest inscribed circle diameter; (a2) the longest length is found among inner diameters of the through pore Pmax in the predetermined cross section, to specify the largest pore diameter L of the through pore Pmax, (a3) in the cross section in which the largest pore diameter L is determined, the smallest pore diameter S is specified.

The invention relates to the technical field of polyolefin catalysts, and particularly discloses a phenoxy imine compound, a preparation method and application thereof, an olefin polymer and a preparation method thereof. The phenoxy imine compound has the following structural formula, in the structural formula, R1 is selected from tertiary butyl, isopropyl, tertiary butyl, cycloalkyl or adamantyl; r2 is selected from cyclopentyl or cyclohexyl; ad is adamantyl; m is selected from Ti or Zr; and X is selected from Cl, Br or-NMe2. The phenoxy imine compound is applied to catalysis of ethylene polymerization and ethylene and alpha-olefin copolymerization reaction, shows high reaction activity, thermal stability and extremely strong regulation and control performance on polyolefin molecular weight, and has wide industrial application prospects.

The present invention is a compound for forming a metal-containing film to be contained in a composition for forming a metal-containing film, including: at least one metal atom selected from the group consisting of Ti, Zr, and Hf; and a ligand coordinated to the metal atom, wherein the ligand contains a ligand represented by the following general formula (1). The present invention can provide: a compound for forming a metal-containing film having better dry etching resistance than conventional resist underlayer film materials and also having high filling and planarizing properties at the same time; a composition for forming a metal-containing film using the compound; and a patterning process using the composition.         HO-X-RA1     (1)

The present invention relates to a transition metal compound having a novel structure and a catalyst composition comprising the same.

The present disclosure relates to metal coordination polymers. In particular, the present disclosure relates to layered metal coordination polymers that can be used as precursors to form nanostructures of various morphologies and compositions. The present disclosure also relates to metal-based nanostructures that can be prepared from the metal coordination polymers. The nanostructures can have various catalytic properties.

The application discloses a kind of metal oxygen cluster materials and its room temperature rapid synthesis method and use, belong to crystal material preparation and micro-nano manufacturing technical field.The method with tin source and titanium source as metal precursor, polydentate alkoxide as ligand, in N,N-dimethylformamide solvent system of participation coordination, by stirring or shaking mode, under room temperature condition, induce metal precursor to occur hydrolysis, condensation and coordination reaction, so that metal-oxygen skeleton is completed in second level time Construction, metal oxygen cluster material is quickly generated.The method does not need heating or pressurization, reaction time is short, operation is simple, and the obtained metal oxygen cluster material is discrete molecular structure composed of metal-oxygen skeleton, with good structure stability and solution processing performance.The metal oxygen cluster material is used in the field of photolithography, and micro-nano pattern transfer can be realized.The method provides an effective way for the rapid preparation of metal oxygen cluster material and its application in micro-nano manufacturing.

The present application relates to a kind of [NN] bidentate coordination metal catalyst based on quinoline skeleton and its preparation method and application, the present application is directly carried out aldehyde amine condensation by quinoline-8-formaldehyde and aniline under the catalysis of p-TsOH, and quinoline-imino ligand is synthesized.The obtained ligand is used in one-pot reaction with in-situ synthesized MMe4 (M=Ti, Zr or Hf), and [NN] bidentate coordination metal catalyst based on quinoline skeleton is prepared.And the quinoline skeleton [NN] bidentate coordination metal catalyst is used for the synthesis of polyolefin.The present application has simple synthesis process, raw material is easy to obtain, product yield is high, has high temperature resistance simultaneously, is suitable for high temperature solution polymerization, and can prepare high-performance polyolefin elastomer.

The application discloses a nitrogen-oxygen chelated transition metal complex catalyst and a preparation method and application thereof, and belongs to the field of olefin polymerization catalysts. The nitrogen-oxygen chelated transition metal complex catalyst has a structure of formula (I), M is selected from group IVB transition metal atoms, Y is selected from silicon, carbon, phosphorus and other atoms, an oxygen-containing functional group is additionally introduced into a ligand of the catalyst to be coordinated with a central atom titanium, and a chelated transition metal complex is formed. In olefin polymerization, Ti active center cations are coordinated with oxygen to be stable, the deactivation of the active center can be effectively slowed down, and the active maintenance time can reach more than 1 hour. The catalyst can be used in the copolymerization reaction of ethylene and C8 or above alpha-olefins.

The present invention relates to the technical field of olefin polymerization catalysts and discloses a tetrahydronaphthol-phosphine pre-transition metal complex, a method for preparing the same, and its use. The structural formula of the tetrahydronaphthol-phosphine pre-transition metal complex is given by formula (I) (wherein M is selected from group 4 metals, Ar is selected from substituted or unsubstituted C6-C20 aryl groups, X is selected from halogens or C1-C10 hydrocarbon groups, and n is 1 or 2). When the tetrahydronaphthol-phosphine pre-transition metal complex of the present invention is used as the main catalyst for olefin polymerization, the olefin polymerization activity (homopolymerization / copolymerization activity) is relatively good even at relatively high temperatures, and the prepared olefin polymer has relatively good performance. [Formula 1] JPEG2026513594000017.jpg31169

To provide a novel transition metal compound that can be used as a catalyst for olefin polymerization.SOLUTION: The transition metal compound is represented by the general formula [A-1] in the figure. (In the formula: M is Ti, Zr, or Hf; n is an integer from 1 to 3; X is a halogen or the like; R1 to R5 are each H or a C1-C20 hydrocarbon group; R6 is a nitrogen-containing aryl group; and R7 and R8 are each a C1-C6 hydrocarbon group.)SELECTED DRAWING: None

Provided is a curing catalyst having a high safety and a practical curing rate. According to the present invention, provided is a curing catalyst [B] used for curing a polymer [A] having a reactive hydrolyzable silicon-containing group, wherein the curing catalyst [B] contains a complex of a titanium compound [B1] and an ammonium hydroxide [B2], and an amine compound [B3], the titanium compound [B1] is represented by Chemical Formula (1), the ammonium hydroxide [B2] is represented by Chemical Formula (2), and the amine compound [B3] is represented by Chemical Formula (3), Chemical Formula (4), or Chemical Formula (5).