312results about "Titanium organic compounds" patented technology

The present invention provides an amidinate compound represented by the following general formula (1) or a dimer compound thereof, and a method of producing a thin-film including using the compound as a raw material:where R1 and R2 each independently represent an alkyl group having 1 to 5 carbon atoms, R3 represents a hydrogen atom or an alkyl group having 1 to 5 carbon atoms, M represents a metal atom or a silicon atom, and “n” represents the valence of the atom represented by M, provided that at least one hydrogen atom of R1 to R3 is substituted with a fluorine atom.

The invention relates to a [NN] bidentate coordination metal catalyst based on a quinoline skeleton as well as a preparation method and application of the [NN] bidentate coordination metal catalyst. According to the preparation method, quinoline-8-formaldehyde and aniline are directly subjected to aldehyde-amine condensation under the catalysis of p-TsOH, and a quinoline-imino ligand is synthesized. The [NN] bidentate coordination metal catalyst based on the quinoline skeleton is prepared by carrying out one-pot reaction on the obtained ligand and in-situ synthesized MMe4 (M is Ti, Zr or Hf). The quinoline skeleton [NN] bidentate coordination metal catalyst is used for polyolefin synthesis. The preparation method has the advantages of simple synthesis process, easily available raw materials, high product yield and high temperature resistance, is suitable for high-temperature solution polymerization, and can be used for preparing high-performance polyolefin elastomers.

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.

Provided are a transition metal compound for a catalyst for olefin polymerization where a cyclopentadienyl group and a silane substituent are introduced and the cyclopentadienyl group is connected by a bridge, a catalyst for olefin polymerization including the same, and a polyolefin polymerized using the same. Since the transition metal compound for a catalyst for olefin polymerization and the catalyst for olefin polymerization including the same according to an exemplary embodiment of the present invention have a unique stereostructure structure, the physical properties of the polymer may be adjusted, and in particular, a polyolefin-based resin having excellent processability may be prepared.

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):

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

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 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, being substituted with a fluorine atom, and containing one or more crosslinkable groups selected from a vinyl group, an allyl group, an allyloxy group, an ethynyl group, a propargyl group, a propargyloxy group, an epoxy group, an oxetanyl group, a nitrile group, and a vinylidene group. 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 present invention belongs to the field of functional materials and relates to the preparation and application of titanium oxide cluster compounds and ionic titanium oxide cluster polymers as precursors. p-TiO2 is prepared by solvent thermal reaction using 4-dimethylaminobenzoic acid as a ligand. 4 ‑N titanium oxide cluster compounds were prepared into 0.5 mg / mL 2,2,2‑trifluoroethanol solution and used as the electron transport layer of solar cells. The energy conversion efficiency of the prepared device reached 17.3%. 4 ‑N as a precursor, and further reacted with 1,4‑dibromo‑2‑butene to prepare an ionic titanium oxide cluster polymer p‑Ti 4 ‑N‑Br was prepared into a 0.9 mg / mL 2,2,2‑trifluoroethanol solution and used in the preparation of devices for the electron transport layer of solar cells. The energy conversion efficiency was increased to 17.9%. The material has good film-forming properties, and the prepared solution is not very sensitive to concentration and film thickness, which will help promote the commercialization of solar cells.

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.

The present invention discloses a compound containing a metal element of Group IV, wherein the chemical formula of the compound is: (Sn(CH 3 ) 3 )CpM(NR 1 R 2 ) 3 (Formula I); In the chemical formula I, M is Ti, Zr or Hf, R 1 , R 2 Each is independently a C1-C4 straight-chain or branched alkyl group; the present invention also provides a precursor composition for forming a film and a method for preparing a film containing a Group IV metal element, wherein the precursor composition comprises a compound of a Group IV metal element; the novel compound containing a Group IV metal element provided by the present invention is liquid at room temperature and has thermal stability, and the use of the compound to prepare a film containing a Group IV metal element can significantly improve the deposition rate.

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.

The present invention relates to nitrogen-containing heterocyclic compounds suitable for use in electronic devices, and to electronic devices, in particular organic electroluminescent devices, containing these heterocyclic compounds.

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 invention relates to a titanium complex catalyst, a preparation method of the titanium complex catalyst and application of the titanium complex catalyst in hydroxylation of anisole. Anisole and hydrogen peroxide react under catalysis of the titanium complex catalyst to obtain o-hydroxyanisole and p-hydroxyanisole. The invention provides a novel catalyst, active titanium and reactants are in full contact, and higher reaction activity is achieved; the catalyst has a certain space effect, can achieve a shape-selective catalysis effect, can generate more para-products, and improves the para-ortho ratio of hydroxyanisole.

The present invention relates to compounds according to formula I:wherein: each R1-R10 may individually be H, a halogen, an alkoxy moiety, a siloxy moiety, a nitrogen-containing moiety, an alkyl moiety, an aryl moiety, or an aralkyl moiety, wherein each R1-R10 comprises ≤10 carbon atoms, wherein each of R1-R10 may form a cyclic moiety with an adjacent R1-R10 moiety; Y is O or N—R11, wherein R11 is an alkyl, cycloalkyl, aryl or aralkyl moiety comprising 1-12 carbon atoms; M is a group 3 or 4 transition metal; X is a sigma-bonded ligand, or a diene; z is the number of ligands X that are bonded to M. Such compounds may be used in a catalyst system for olefin polymerisation.

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

The purpose of the present invention is to provide an MOF having excellent desorption performance. The present invention is a metal-organic structure comprising a prescribed organic ligand and a prescribed metal ion, the metal-organic structure having a porosity of 20-75% and a ratio (maximum pore diameter L / minimum pore diameter S) of the maximum pore diameter L to the minimum pore diameter S as determined by steps (a1) to (a3) below of 1.06 or more. (a1) The crystal structure determined by X-ray crystal structure analysis is represented by a space filling model, and the presence or absence of the through-hole is observed under predetermined conditions to specify a through-hole (Pmax) in which the diameter of the inscribed circle is the largest. (a2) The maximum length of the inner diameter of the through-hole (Pmax) is found in a prescribed cross-section of the through-hole (Pmax), and the maximum diameter (L) of the through-hole (Pmax) is specified. And (a3) specifying the minimum aperture (S) within the cross section in which the maximum aperture (L) has been specified.

The invention discloses a heterogeneous synthesis method of a cyclopentadiene-based metal precursor, and belongs to the technical field of semiconductor deposition materials. The structure of the cyclopentadienyl metal precursor is represented as RzCpM (NRxRy) 3, M is selected from Ti, Zr and Hf, Cp is a cyclopentadienyl group, R, Rx and Ry are independently selected from C1-C5 alkyl groups, and z is an integer of 0-5; the heterogeneous synthesis method comprises the following steps: mixing lithium dialkylamino, a metal halide and a heterogeneous reaction catalyst for reaction, and then adding a cyclopentadiene monomer for reaction. By introducing the specific heterogeneous reaction catalyst and optimizing the reaction condition parameters such as the raw material equivalence ratio, the material adding sequence, the reaction temperature and the reaction time, the reaction yield and the product quality can be effectively improved, and the defects of low yield and unstable process in the traditional heterogeneous synthesis route are well overcome; the method can be applied to industrial production and manufacturing of the cyclopentadienyl titanium / zirconium / hafnium precursor.

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.

The invention provides a dipyridyl-containing metal organic compound which is novel in structure and is shown in a formula (I), the dipyridyl-containing metal compound has a structure with a larger steric hindrance ligand, a specific space is given to a catalyst, and a catalyst composition formed by the dipyridyl-containing metal organic compound can efficiently promote olefin copolymerization reaction capacity and high temperature resistance of the catalyst.