Abstract: The present disclosure provides bridged metallocene catalyst compounds including at least two —Si—Si— bridges, catalyst systems including such compounds, and uses thereof. Catalyst compounds of the present disclosure can be hafnium-containing compounds having one or more cyclopentadiene ligand(s) substituted with one or more silyl neopentyl groups and linked with at least two Si—Si-containing bridges. In another class of embodiments, the present disclosure is directed to polymerization processes to produce polyolefin polymers from catalyst systems including one or more olefin polymerization catalysts, at least one activator, and an optional support.

Abstract: Provided herein are metal-ligand complexes, and associated methods, characterized by formula MLxDy; wherein: M is a metal; x is equal to the oxidation state of M; each D is independently a neutral coordinating ligand; y is zero or an integer selected from the range of 1 to 4; and each L is independently a mono-anionic ligand. L may be a ?1,?2-?,?-disubstituted-?-alkenyl ligand.

Abstract: Methods, apparatuses, and systems related to formation of an atomic layer of germanium (Ge) on a substrate material are described. An example method includes introducing, into a semiconductor processing chamber housing a substrate material having a high aspect ratio, a reducing agent, and introducing, into the semiconductor processing chamber, a germanium amidinate precursor. The example method further includes forming an atomic layer of germanium on the substrate material resulting from a reaction of the reducing agent and the germanium amidinate precursor.

Abstract: Novel polymerizable multivinylaminosilanes which are useful as branching agents for synthetic and natural rubber are described. The compounds can be used in the polymerization of conjugated diene monomers, optionally together with aromatic vinyl monomers, thus producing polymers, which can favorably be used in rubber articles such as tires.

Abstract: The metal-catalyzed alkoxycarbonylation of a lactone is a method of alkoxycarbonylating a ?-lactone, specifically 3-ethylidene-6-vinyltetrahydro-2H-pyran-2-one. The method includes combining the ?-lactone with an alcohol in an organic solvent in the presence of a catalyst system that includes palladium or a salt thereof to form a reaction mixture, which is heated to 110-130° C. at a pressure of 20-50 bar for between 3-5 hours under flow of carbon monoxide gas. The product of the reaction is a substituted 2-octendioate diester. The alcohol may be methyl alcohol, n-butyl alcohol, 2-ethylhexanol, isobutyl alcohol, isopropyl alcohol, benzyl alcohol, or phenol. The solvent may be toluene, acetonitrile, or tetrahydrofuran. The method may include adding an acid to the reaction mixture, which may be dilute (about 5 mol %) sulfuric or p-toluenesulfonic acid. The catalyst system may also include a phosphine ligand.

Abstract: Quantum dots and methods of making quantum dots are described. A method begins with forming quantum dots having a core-shell structure with a plurality of ligands on the shell structure. The method includes exchanging the plurality of ligands with a plurality of second ligands. The plurality of second ligands have a weaker binding affinity to the shell structure than the plurality of first ligands. The plurality of second ligands are then exchanged with hydrolyzed alkoxysilane to form a monolayer of hydrolyzed alkoxysilane on a surface of the shell structure. The method includes forming a barrier layer around the shell structure by using the hydrolyzed alkoxysilane as a nucleation center.

Abstract: Metallated aminosilane compounds for use as functional initiators in anionic polymerizations and processes for producing an aminosilane-functionalized polymer using the metallated aminosilane compounds to initiate anionic polymerization of at least one type of anionically polymerizable monomer. Preferred use of the metallated aminosilane compounds results in rubber compositions for use in tires comprising an aminosilane functionalized polymer.

Abstract: The present invention pertains to a method for producing an optically active compound which includes a step for reducing an imino group of an imine compound or a step for reducing an unsaturated bond of a heterocyclic compound, while in the presence of hydrogen gas as a hydrogen donor and one or more types of complexes selected from a group consisting of a complex represented by general formula (1), a complex represented by general formula (2), a complex represented by general formula (3), and a complex represented by general formula (4) (the general formulas (1)-(4) are as stipulated by claim 1).

Abstract: A subject matter of the present invention is the use as catalyst, in particular in hydrosilylation, of a metal complex including at least one metal atom chosen from the metals of Groups 8, 9 and 10 of the Periodic Table of the Elements and one or more ligands, characterized in that at least one ligand includes a silene structure.

Abstract: The present invention provides methods for the synthesis of catalysts and precursors thereof. Methods of the invention may comprise combining a catalyst precursor and at least one ligand to generate a catalytically active species, often under mild conditions and in high yields. In some cases, a wide variety of catalysts may be synthesized from a single catalyst precursor. Methods of the invention may also include the preparation of catalysts which, under reaction conditions known in the art, may have been difficult or impossible to prepare and/or isolate due to, for example, steric crowding at the metal center. The present invention also provides catalyst compositions, and precursors thereof, which may be useful in various chemical reactions including olefin metathesis. In some cases, methods of the invention may reduce the number of synthetic and purification steps required to produce catalysts and/or other reaction products, as well as reducing time, cost, and waste production.

Abstract: Mercapto-containing organosilicon compounds of specific structure are low volatile and serve to enhance the adhesion of resins to inorganic substrates.

Abstract: 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.

Abstract: A method of preparing a carbon nanotube composite with metal particles on a surface thereof, including: introducing an acylhalide group to the surface, causing a reaction of the acylhalide group with an amine group of a polysiloxane to bond the polysiloxane to the surface by the amide groups, and introducing metal particles to other functional groups of the polysiloxane to bond the metal particles to the surface of the carbon nanotube composite.

Abstract: A deposition process to form a conformal phase change material film on the surface of a substrate to produce a memory device wafer comprises providing a substrate to a chamber of a deposition system; providing an activation region; introducing one or more precursors into the chamber upstream of the substrate; optionally introducing one or more co-reactants upstream of the substrate; activating the one or more precursors; heating the substrate; and depositing the phase change material film on the substrate from the one or more precursors by chemical vapor deposition. The deposited phase change material film comprises GexSbyTezAm in which A is a dopant selected from the group of N, C, In, Sn, and Se. In one implementation, the process is carried out to form GST films doped with carbon and nitrogen, to impart beneficial film growth and performance properties to the film.

Abstract: This invention relates to molecular catalysts and chemical reactions utilizing the same, and particularly to catalysts and catalytic methods for reduction of molecular nitrogen. The molecular catalytic platform provided herein is capable of the facile reduction of molecular nitrogen under useful conditions such as room temperature or less and atmospheric pressure or less.

Abstract: A metal precursor and a method comprising decomposing a metal precursor on an integrated circuit device; and forming a metal from the metal precursor, wherein the metal precursor is selected from the group consisting of (i) a Co2(CO)6(R1C?CR2), wherein R1 and R2 are individually selected from a straight or branched monovalent hydrocarbon group have one to six carbon atoms that may be interrupted and substituted; (ii) a mononuclear cobalt carbonyl nitrosyl; (iii) a cobalt carbonyl bonded to one of a boron, indium, germanium and tin moiety; (iv) a cobalt carbonyl bonded to a mononuclear or binuclear allyl; and (v) a cobalt (II) complex comprising nitrogen-based supporting ligands.

Abstract: A carbon nanotube (CNT) composite of which one or more specific functional groups are bonded to surface of a CNT, and a method of preparing a CNT composite are provided. The method includes the steps of introducing an acylhalide group to surface of a CNT, and causing a reaction of the acylhalide group with a polysiloxane having amine groups so as to prepare a CNT composite of which the polysiloxane is bonded to the surface by the medium of an amide group. The CNT composite can fix metal particles uniformly and densely thereon, can have improved mechanical and electrical properties, and can be applied to various industrial fields.

Abstract: Group 4 transition metal complexes of bidentate iminonaphthol pro-ligands can be used as catalysts to polymerise olefins, such as ethylene. Group 4 transition metal complexes of bidentate iminonaphthol pro-ligands can have a single-site nature, allowing the catalysts to be used to prepare ultra high molecular weight polyethylene having a narrow molecular weight distribution.

Abstract: Preparation of semiconductor nanocrystals and their dispersions in solvents and other media is described. The nanocrystals described herein have small (1-10 nm) particle size with minimal aggregation and can be synthesized with high yield. The capping agents on the as-synthesized nanocrystals as well as nanocrystals which have undergone cap exchange reactions result in the formation of stable suspensions in polar and nonpolar solvents which may then result in the formation of high quality nanocomposite films.

Abstract: Preparation of semiconductor nanocrystals and their dispersions in solvents and other media is described. The nanocrystals described herein have small (1-10 nm) particle size with minimal aggregation and can be synthesized with high yield. The capping agents on the as-synthesized nanocrystals as well as nanocrystals which have undergone cap exchange reactions result in the formation of stable suspensions in polar and nonpolar solvents which may then result in the formation of high quality nanocomposite films.

Abstract: A composition contains (A) a hydrosilylation reaction catalyst and (B) an aliphatically unsaturated compound having an average, per molecule, of one or more aliphatically unsaturated organic groups capable of undergoing hydrosilylation reaction. The composition is capable of reacting via hydrosilylation reaction to form a reaction product, such as a silane, a gum, a gel, a rubber, or a resin. Ingredient (A) contains an iron-organosilicon ligand complex that can be prepared by reacting an iron carbonyl compound and an organosilicon ligand.

Abstract: The invention relates to a multinuclear metallocene catalyst compound according to Formula (1), wherein Y and Y? are the same or different and independently selected from the group consisting of C1-20 linear, branched or cyclic hydrocarbyl groups, C1-30 aryl and substituted aryl groups; L and L? are the same or different and are electron-donating groups independently selected from the elements of Group 15 of the Periodic Table; Q and Q? are the same or different and independently selected from the group consisting of C1-30 alkylene groups; M? is a metal selected from Groups 3, 4, 5, 6, 7, 8, 9 and 10 or from lanthanide series elements of the Periodic Table; Z is selected from the group consisting of hydrogen, a halogen and C1-20 hydrocarbyl, C1-20 alkoxy and C1-20 aryloxy groups; z is an integer from 1 to 4; n and n? are independently 0 or 1, with 1?(n+n?)?2; B and B? are the same or different and each is a metallocene compound, with B being represented by the compound of Formula (2) and B? being represented

Abstract: 3-Alkenyl-6-halo-4-aminopicolinic acids and their derivatives are potent herbicides demonstrating a broad spectrum of weed control.

Abstract: The complex of the present invention containing an onium salt and a central Lewis acidic metal has a high catalytic activity at a high temperature for the copolymerization of an epoxide and carbon dioxide to produce a high molecular weight polycarbonate.

Abstract: The complex of the present invention containing an onium salt and a central Lewis acidic metal has a high catalytic activity at a high temperature for the copolymerization of an epoxide and carbon dioxide to produce a high molecular weight polycarbonate.

Abstract: Metallocene compounds and pharmaceutical compositions containing these metallocene compounds are disclosed and described. Methods of treating cancer employing such metallocene compounds and pharmaceutical compositions also are provided.

Abstract: Described herein are materials for use in electrolytes that provide a number of desirable characteristics when implemented within batteries, such as high stability during battery cycling up to high temperatures high voltages, high discharge capacity, high coulombic efficiency, and excellent retention of discharge capacity and coulombic efficiency over several cycles of charging and discharging. In some embodiments, a high voltage electrolyte includes a base electrolyte and a set of additive compounds, which impart these desirable performance characteristics.

Abstract: A method for producing an anionized meso-form double-cross-linked ligand represented by formula (3), including: bringing a compound represented by formula (1) into contact with a compound represented by formula (2) at ?25° C. or less; and introducing an anionizing agent within 5 hours after the contact, wherein R1 to R10 are independently a hydrogen atom, a hydrocarbon group having 1 to 20 carbon atoms, or the like; A and A? are independently a cross-linking group containing an atom belonging to the 14th group of the periodic table; M and M? are independently an atom belonging to the 1st or the 2nd group of the periodic table.

Abstract: Compositions and methods for producing polymerization initiators comprising at least two protected primary amine groups. Polymers prepared using such polymerization initiators can comprise a residue of the polymerization initiator and can initially comprise the at least two protected primary amine groups. Such polymers can undergo a deprotection process thereby yielding a polymer having one or more unprotected primary amine groups. Polymers having primary amine groups can be employed in rubber compositions, which have a variety of potential applications, such as, for example, in tire manufacturing.

Abstract: A composition contains (A) a hydrosilylation reaction catalyst and (B) an aliphatically unsaturated compound having an average, per molecule, of one or more aliphatically unsaturated organic groups capable of undergoing hydrosilylation reaction. The composition is capable of reacting via hydrosilylation reaction to form a reaction product, such as a silane, a gum, a gel, a rubber, or a resin. Ingredient (A) contains a platinum-ligand complex that can be prepared by reacting a platinum precursor and a ligand.

Abstract: The invention provides for a process for the preparation of a silylferrocene compound, comprising the steps of treating ferrocene with a 4-chloroalkyryl chloride in the presence of an lewis acid catalyst and an organic solvent to obtain the acylated product, reducing the acylated product to obtain the 4-chloralkylferrocene, treating the 4-chloroalkylferroce with a metal under Grignard reaction conditions to form its corresponding Grignard intermediate compound; and reacting with chloroalkylsilane in-situ to give the silylferrocene compound. The silylferrocene compound 4-(dimethylsilyl)butylferrocene can be prepared by the process of the invention.

Abstract: Processes for making an organozinc reagents are disclosed comprising reacting (A) organomagnesium or organozinc complexes with (B) at least one coordination compound comprising one or more carboxylate groups and/or alcoholate groups and/or tertiary amine groups, optionally in combination with zinc ions and/or lithium ions and/or halide ions, wherein the halide ions are selected from chloride, bromide and iodide, the organozinc complex comprises an aryl group, a heteroaryl group or a benzyl group when the coordinating compound is a chelating polyamine, and the reaction is conducted in the presence of zinc complexed with at least one coordinating compound when reactant (A) comprises at least one organomagnesium complex. The resulting organozinc reagents may optionally be isolated from solvents to obtain a solid reagent. The reagents may be used for making organic compounds via Negishi cross-coupling reactions or via aldehyde and/or ketone oxidative addition reactions.

Abstract: Siloxane polymer ligands for binding to quantum dots are provided. The polymers include a multiplicity of amine or carboxy binding ligands in combination with long-alkyl chains providing improved stability for the ligated quantum dots. The ligands and coated nanostructures of the present invention are useful for close packed nanostructure compositions, which can have improved quantum confinement and/or reduced cross-talk between nano structures.

Abstract: Provided is a method of preparing silica composite particles, including treating silica particles, wherein the treating is for treating the silica particles with a metal compound in which a metal atom binds to an organic group via an oxygen atom, in supercritical carbon dioxide, and the metal atom is selected from a group consisting of Ti, Al, Zr, V, and Mg.

Abstract: The present invention provides conductivity promoters, and in particular soluble conductivity promoters that contain a hydrocarbon moiety or a siloxane moiety and a metal. The present invention also provides methods of making soluble conductivity promoters and adhesive compositions containing the conductivity promoters of the invention.

Abstract: Disclosed herein are manganese, iron, nickel, or cobalt compounds having a bidentate ligand and the use of these compounds for the hydrogenation of alkenes, particularly the asymmetric hydrogenation of prochiral olefins.

Abstract: The present invention provides the following new polymers which are useful for hydrogen storage: (i) a polymer comprising -[MN2]— as a repeating unit, wherein M is selected from the group consisting Sc, Ti, V, Cr, Mn, Fe, Co, Zr, Nb, Mo, and mixtures thereof; and (ii) a polymer comprising -[M2N3]— as a repeating unit, wherein M is selected from the group consisting Sc, Ti, V, Cr, Mn, Fe, Co, Zr, Nb, Mo, and mixtures thereof.

Abstract: This disclosure relates to olefin polymerization catalysts and compositions, their manufacture, and the production of polyolefins using specific catalyst compositions, including the use of chain shuttling agents in the olefin polymerization process. Specifically, this disclosure provides for dual headed and multi-headed chain shuttling agents (CSAs or MSAs) and for their use in preparing blocky copolymers. By controlling the ratio of dual-headed and multi-headed CSA sites to mono-headed CSA sites, a blocky copolymer can be provided having properties such as a narrow molecular weight distribution and/or improved melt properties.

Abstract: Borohydride metallocene complex of lanthanide, preparation process, catalytic system incorporating borohydride metallocene complex, process for copolymerization of olefins employing catalytic system. The complex corresponds to one or other of formulae A and B: where, in A, two ligands Cp1, Cp2, each composed of a cyclopentadienyl group, are connected to the lanthanide Ln, such as Nd, and where, in B, a ligand molecule, composed of two cyclopentadienyl groups Cp1, Cp2 connected to one another via a bridge P of formula MR1R2, M is an element from group IVa, and R1 and R2, which are identical or different, represent an alkyl group comprising from 1 to 20 carbon atoms, is connected to the lanthanide Ln, L is alkali metal, N is molecule of a complexing solvent, x is integral or non-integral number?0, p is integer?than 1 and y is integer?0.

Abstract: The object of the present invention is to provide an organic-inorganic hybrid material having heat resistance, and said object of the present invention can be attained by providing an organic-inorganic hybrid prepolymer containing a phenyl group which is prepared by the polycondensation reaction accompanying dehydration between a polydimethylsiloxane and a metal and/or semimetal alkoxide, wherein (a) phenyl group(s) is (are) partially or wholly introduced into said polydimethylsiloxane and/or said metal and/or semimetal alkoxide.

Abstract: A metallocene complex by which high uptake efficiency of ethylene and/or ?-olefin can be obtained compared with the conventional metallocene catalyst, and robber component having high molecular weight can be polymerized, and polymerization method of olefin. Metallocene complex (metallocene complex having furyl or thienyl group in which substituent exists at 5-position of indenyl ring, and substituent may exist at 2-position of indenyl ring, and the like) represented by the general formula [II], the catalyst for olefin polymerization characterized by comprising said metallocene complex, and polymerization method of olefin characterized that polymerization or copolymerization of olefin is carried out using said polymerization catalyst for olefin, and the like.

Abstract: The present invention generally relates to a new method of polymerizing ethylene. In one embodiment, the present invention relates to compounds utilized in the polymerization of ethylene and to a synthesis/polymerization method that uses same. In another embodiment branched polyethylene is synthesized from an ethylene monomer using, in this embodiment, at least one nickel iminophosphonamide (PN2) complex. In still another embodiment, the reaction of (phenyl) (triphenylphosphine) (diphenyl-bis (trimethylsilylimino) phosphorato)-nickel, with Rh(acac) (C2H4)2 and ethylene yield a branched polyethylene. In an alternative of this embodiment, the reaction of (phenyl) (triphenylphosphine) (methyl-cis(trimethylsilyl)amino-bis(trimethylsilylimino) phosphorato)-nickel and ethylene, with or without Ni(COD)2, yields a branched polyethylene.

Abstract: The present invention is directed to a method of exchanging nanostructures from within aqueous liquid media into organic liquid media. The steps comprise first supplying solid nanostructures in an aqueous liquid media, adjusting the pH, incorporating an ionic surfactant sufficient to reduce nanostructure aggregation, followed by concentrating the nanostructures in the aqueous liquid media. The nanostructures may them be placed in organic liquid media followed by introduction of a coupling agent capable of covalent attachment to the nanostructure surface while providing a functional group capable of polymerization to covalently bond the nanostructures to a selected monomer and/or polymer resin.

Abstract: There are provided a ruthenium-diamine complex, and methods for selectively producing an optically active alcohol and an optically active amine, which are important as precursors for the synthesis of medicinal drugs and functional materials, using the ruthenium-diamine complex as a catalyst. The invention provides a ruthenium-diamine complex prepared by introducing a trisubstituted silyl group into an aromatic compound (arene) moiety that is coordinated with a ruthenium complex having an optically active diamine as a ligand, a catalyst for asymmetric reduction formed from the ruthenium-diamine complex, and a method for producing an optically active alcohol or an optically active amine using the catalyst.

Abstract: A stereoselective olefin polymerization catalyst contains a complex represented by Formula (1): wherein n is 2 or 3; R1 and R2 are independently an optionally substituted alkyl group or a halogen atom; L is a ligand represented by CH2R3, a halogen atom, OR4, or NR5R6; R3 is a hydrogen atom, an aromatic group, or a trialkylsilyl group; R4 is a lower alkyl group having 1 to 6 carbon atoms; and R5 and R6 are independently a hydrogen atom or a lower alkyl group having 1 to 6 carbon atoms. A method for manufacturing stereoselective polyolefin, includes polymerizing an olefin in the presence of the catalyst. The present invention provides a catalyst which enables highly isoselective polymerization generating a polymer having significantly high molecular weight and also can prepare stereoselective polyolefin with a narrow dispersity (Mw/Mn) or with a sharp molecular weight distribution, and provides a method for manufacturing stereoselective polyolefin with the catalyst.

Abstract: To provide a novel material exhibiting excellent light-emitting characteristics using a heavy metal element having relatively abundant reserve.

Abstract: New vinyl-alkynylsubstituted germanium compounds having the general formula 1 are the subject of the invention. The invention also relates to a new method of obtaining vinyl-alkynylsubstituted germanium compounds having the general formula 1. — A denotes: diethylgermyl — R denotes: triethylsilyl, 1-(trimethylsiloxy)-1-cyclohexyl The invention also provides a solution to the problem of the method of obtaining vinyl-alkynylsubstituted germanium compounds having the general formula 1, involving the germylative coupling reaction between a suitable substituted terminal alkyne and a suitable divinylsubstituted germanium compound in the presence of a ruthenium(II) complex as catalyst.

Abstract: The present invention relates generally to olefin metathesis. In some embodiments, the present invention provides methods for Z-selective ring-closing metathesis.

Abstract: The present invention provides methods of making bridged cyclopentadienyl-indenyl metallocene compounds. Generally, these methods can be conducted without the use of a fine purification process such as distillation, chromatography, and crystallization.

Abstract: A process for preparing a multi-layer substrate is described herein. In one embodiment, the process provides a multi-layer substrate comprising a first layer and a second layer where the process comprises the steps of providing the first layer comprising a barrier area and a copper area; and depositing the second layer comprising copper onto the first layer wherein the depositing provides the second layer comprising a first thickness ranging from about 20 Angstroms to about 2,000 Angstroms onto the barrier area and a second thickness ranging from about 0 Angstroms to about 1,000 Angstroms onto the copper area in the first layer wherein the first thickness is greater than the second thickness.