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8143429 |
Process for producing organic transition metal complex compound, metathesis catalyst produced by using the same, ring-opening metathesis polymer obtainable with the metathesis catalyst, and process for producing the polymer
A process for synthesizing an organic transition metal complex compound with an atom group having an electron-donor ability, in an industrially and economically advantageous manner, without a...
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7989650 |
Therapeutic delivery of carbon monoxide to extracorporeal and isolated organs
Metal carbonyls are used to deliver CO to organs to limit post-ischaemic damage. The organ may be extracorporeal, e.g. for use in a transplant, or may be an isolated organ inside or attached to the...
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7652132 |
Implementation of a strategy for achieving extraordinary levels of surface area and porosity in crystals
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 clu...
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7411081 |
Process for preparing and organometallic framework material
A process for preparing an organometallic framework material comprising reacting at least one metal salt with at least one at least bidentate compound capable of coordination to the metal ion of...
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7345184 |
Method and system for refurbishing a metal carbonyl precursor
A method and system for refurbishing a metal carbonyl precursor. The method includes providing a metal precursor vaporization system containing a metal carbonyl precursor containing un-reacted and...
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7288198 |
Removal of alcohols and water from a methylcyclopentadiene recycle stream in a process for the synthesis of methylcyclopentadienyl manganese tricarbonyl
During the process of synthesis of methylcyclopentadienyl manganese tricarbonyl (MMT), a key raw material methylcyclopentadiene (MCP) is used. The MCP component may be recycled for subsequent...
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7198771 |
Polymeric and carbon compositions with metal nanoparticles
The invention comprises a chemical composition with the structure shown below. The composition can be polymerized or pyrolyzed, forming transition metal nanoparticles homogeneously dispersed in a...
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7196210 |
Isoreticular metal-organic frameworks, process for forming the same, and systematic design of pore size and functionality therein, with application for gas storage
The ability to design and construct solid-state materials with pre-determined structures is a grand challenge in chemistry. An inventive strategy based on reticulating metal ions and organic...
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7157592 |
Method for producing organo-metallic compounds of cyclopentadiene
A method for producing ferrocene and other organometallic compounds of cyclopentadiene is disclosed. Dry iron chloride (or other selected metal salt) is added to a solution of cyclopentadiene,...
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7067686 |
Synthesis of benzyl-metal compounds
Disclosed are methods of producing di-, tri- or tetrabenzyl-metal compounds comprising combining a metal salt with a (benzyl)nMgX2-n compound at from less than 30° C., wherein n is 1 or 2 and X is ...
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7019158 |
Chiral organometallic compounds for use in asymmetric synthesis
Chiral organometallic compounds are provided which comprise certain non-symmetrically substituted cyclopentadiene complexed to a transition metal. The cyclopentadiene has a second coordinating...
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6967256 |
Formation of enediynes by reductive coupling followed by alkyne metathesis
One aspect of the present invention relates to methods of preparing enedialkylidyne complexes, enediynes, and alkyne metathesis catalysts, as well as methods of catalyzing alkyne metathesis...
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6965028 |
Rectangular supramolecules
This invention features a supramolecule having the following structure: M is a transition metal atom that is rhenium (Re), manganese (Mn), chromium (Cr), molybdenum (Mo), tungsten (W), iron (Fe),...
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6933400 |
Complex compounds and their use in olefin polymerization
Complexes of the formulae I a to d, where M is an element of groups 6 to 10 of the Periodic Table of the Elements, preferably Ni, can be used for the polymerization and copolymerization of olefins,...
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6888002 |
Transition metal complexes with diaminocarbene ligands and their use in reactions catalyzed by transition metals
The invention relates to novel transition metal complexes containing at least one diaminocarbene ligand, to processes for preparing these transition metal complexes and to their use as catalysts in...
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6835835 |
Synthesis for organometallic cyclometallated transition metal complexes
The invention provides a process for forming an organometallic cyclometallated complex comprising the step of reacting, in an aprotic organic solvent, an organozinc complex of a desired organic...
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6833464 |
Catalyst composition, method of making same and its use in olefin polymerization
A composition of matter comprising a compound having the general formula: [CpM(ArF)Y]pwhereinCp is a substituted or unsubstituted cyclopentadienyl ligand or cyclopentadienyl-type bulky ligand...
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6831187 |
Multimetallic catalyst compositions for the polymerization of olefins
The present invention relates to novel hetero-multimetallic catalyst precursors and catalysts for the polymerization of olefins.
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6753436 |
Olefin polymerization catalysts
The invention concerns olefin polymerization catalyst component comprising an organometallic compound of general formula I wherein:M is a transition metal of groups 3, 4-10, lanthanide or actinide...
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6531107 |
Fabrication of molecular nanosystems
The invention relates to structural subunits called “synthons” which are suitable for use in the design and manufacture of molecular nanostructures, machines, and devices. The synthon comprises pol...
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6517795 |
Process for producing hydrotalcites and the metal oxides thereof
A process for producing high-purity hydrotalcites by reacting alcohols or alcohol mixtures with at least one or more divalent metal(s) and at least one or more trivalent metal(s) and hydrolyzing...
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6511936 |
Catalyst compounds with β-diminate anionic ligands and processes for polymerizing olefins
The present invention relates to catalyst systems, processes for making such catalysts, intermediates for such catalysts, and olefin polymerization processes using such catalysts wherein such...
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6403772 |
Open-pentadienyl metallocenes, precursors thereof and polymerization catalysts therefrom
New metallocene compounds are described where the ligand contains at least one open-pentadienyl containing radical characterized by a cyclic or acyclic, six π electron, delocalized, five atomic ...
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6359119 |
Formulation of Tc and Re carbonyl complexes using stannous ion as the reductant for pertechnetate and perrhenate
The invention relates to novel aminocarboxylate ligands that are suitable for complexing with a radionuclide, and are useful as therapeutic agents and as imaging agents for diagnostic purposes. In...
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6316652 |
Drug mitochondrial targeting agents
The invention relates to novel targeting drug agents that are targeted for entry into the mitochondria. More specifically, the agents are cisplatin derivatives called mitoplatins which are useful...
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6277934 |
Organic aluminoxy compound and catalyst for producing polymer
An organic aluminoxy compound which shows 27 Al nuclear magnetic resonance spectrum (27 Al-NMR spectrum) having an A1 /A2 ratio of at most 0.1, wherein A1 is area of a region encompassed by a...
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6180764 |
Process for producing hydrotalcites by hydrolyzing metal alcoholates
A process for producing high-purity hydrotalcites by reacting alcohols or alcohol mixtures with at least one or more divalent metal(s) and at least one or more trivalent metal(s) and hydrolysing...
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6180807 |
Direct synthesis of organorhenium oxides from compounds containing rhenium
The present invention relates to a process for the preparation of organorhenium oxides from rhenium-containing compounds, where the rhenium-containing compound is reacted with a silylating agent...
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6072067 |
Cyclopentadiene compound substituted with a hetero atom-containing group
Polysubstituted cyclopentadiene-containing compound, in which at least one substituent is has the formula --RDR'n, in which R is a linking group between the cyclopentadiene and the DR'n group, D is...
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6057465 |
Arene-transition metal linkers for solid phase synthesis
Compositions and methods for the solid phase synthesis of organic compounds are provided. The compositions are solid supports having an attached traceless linker precursor and are represented by...
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6034192 |
Germanium bridged metallocenes producing polymers with increased melt strength
This invention relates to a process for polymerizing ethylene comprising contacting ethylene and optional comonomers with a catalyst system comprising an activator and a transition metal compound...
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6008394 |
Sulfonyl catalysts and method of using the same
A novel metallocene catalyst for the polymerization of olefin (co)polymers is of the general formula: R--SO2 --L--M--(X)m Tnwherein, M is a metal selected from Groups 3-10; T is a...
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6002035 |
Fullerene-containing metallocene
The present invention relates to a novel fullerene-containing metallocene. Such a fullerene-containing metallocene can be used as the catalyst for preparing olefin polymers.
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5977392 |
Organometallic catalysts for the polymerization and copolymerization of alpha-olefins
Catalyst component for the polymerization of alpha-olefins of general formula (I) ##STR1## wherein: M is a transition metal of groups 3, 4-10, lanthanide or actinide of the periodic table of the...
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5776424 |
Two powder synthesis of hydrotalcite and hydrotalcite-like compounds with monovalen inorganic anions
There is provided a method for making a monovalent inorganic anion-intercalated hydrotalcite-like material by first reacting a magnesium-containing powder and a transition alumina powder in a...
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5641871 |
Preparation of metallocenes in one reaction step
Metallocenes are prepared by a process in which a metal salt is reacted with at least one alkali metal and with an unsaturated, cyclic hydrocarbon in the presence of a solvent in one reaction step.
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5618958 |
Chiralrhenium catalysts and processes for preparing the same
A novel catalyst comprising the formula: LRE(O)nwhereinL is selected from the group consisting of(a) (R1)(AL) wherein R1 is an alkyl side chain containing at least one carbon-rhenium covalent bond,...
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5578286 |
Two powder synthesis of hydrotalcite-like compounds with divalent or polyvalent organic anions
There is provided a method for making a divalent or polyvalent organic anion-intercalated hydrotalcite-like materials by first reacting a magnesium-containing powder and a transition alumina powder...
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5501808 |
Crystalline-like transition metal material
Transition metal compounds of a crystalline-like structure are provided having unique electrical properties. The compounds comprising nickel have been shown to have ferromagnetic behavior which is...
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5434116 |
Organic transition metal compound having π-bonding heterocyclic ligand and method of polymerizing olefin by using the same
A transition metal organometallic compound comprising a transition metal in any one of group 3A to group 8 of the periodic table and cyclic compounds containing a heteroaom in group 5 or group 5B...
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5364953 |
High relaxivity, paramagnetic, metal clusters for magnetic resonance imaging
The present invention relates to novel compounds for use as imaging agents. In particular, the present invention relates to paramagnetic metal clusters having oxygen and/or nitrogen containing...
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5274147 |
Process for preparing manganese complexes
A process for preparing a dinuclear manganese complex of formula (A) ##STR1## wherein: Mn represents manganese in the III or IV oxidation state, each X is independently a co-ordinating or bridging...
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5155247 |
Use of organorhenium compounds for the oxidation of multiple C--C-bonds, oxidation processes based theron and novel organorhenium compounds
Compounds of the formula (R11 Re)k O1 R12 m Ln (III)in which R11 is a hydrocarbon group which is bonded to the rhenium via a carbon atom to which at least one hydrogen atom is still attached, R...
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5110962 |
Preparation and application of brominated compounds of manganese
Manganese bromide solution for use in the formation of organomanganese compounds, applicable to the synthesis of organic products, particularly ketones.
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5026885 |
Process for preparing transition metal cyclopentadienyl carbonyl compounds
Transition metal cyclopentadienyl carbonyl compounds of the formula: [Rx Cp M(CO)y ]nwherein R is hydrocarbyl, Cp is cyclopentadienyl, M is a transition metal, x is 0 or an integer from 1 to 5, y...
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5023213 |
Precursors in the preparation of transition metal nitrides and transition metal carbonitrides and their reaction intermediates
A process for making ammonolytic precursors to nitride and carbonitride ceramics. Extreme reaction conditions are not required and the precursor is a powder-like substance that produces ceramics of...
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4978763 |
Novel manganese(II) DTPA chelate
The process of this invention for preparing Mn(II) chelate comprises forming the Mn(II) chelate by mixing manganese(II) oxide (insoluble) with an aqueous suspension comprising a molar equivalent or...
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4868288 |
Process for preparing metallocene complexes
The invention relates to a process for the preparation of compounds of formula Ia [R1 FeR2' ]♁q [LQm ]q.crclbar.(Ia),wherein R1 is a π-arene, R2' is an anion of a π-arene, L is a divalent to hep...
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4767873 |
Helical metallocene oligomers and a method for their preparation
The invention describes a helicene compound having the structure ##SPC1##which contains seven six-membered conjugated aromatic rings capped by two five-membered rings which do not superimpose on...
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4746501 |
Process for preparing transition metal nitrides and transition metal carbonitrides and their reaction intermediates
A process for making ammonolytic precursors to nitride and carbonitride ceramics. Extreme reaction conditions are not required and the precursor is a powder-like substance that produces ceramics of...
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