Abstract: An improved catalyst based on cobalt and/or rhodium dissolved in a non-aqueous ionic solvent which is liquid at a temperature of less than 90° C. More particularly, the catalyst comprises at least one complex of cobalt and/or rhodium co-ordinated with at least one nitrogen-containing ligand and the non-aqueous ionic solvent comprises at least one quaternary ammonium and/or phosphonium cation and at least one inorganic anion.
Type:
Grant
Filed:
July 12, 2002
Date of Patent:
January 13, 2004
Assignee:
Institut Francais du Petrole
Inventors:
Gerhard Hillebrand, Andre Hirschauer, Dominique Commereuc, Helene Olivier-Bourbigou, Lucien Saussine
Abstract: Catalyst compositions useful for the polymerization of olefins are disclosed. These compositions comprise a Group 8-10 metal complex comprising a bidentate or variable denticity ligand comprising one or two nitrogen donor atom or atoms independently substituted by an aromatic or heteroaromatic ring(s), wherein the ortho positions of said ring(s) are substituted by aryl or heteroaryl groups. Also disclosed are processes for the polymerization of olefins using the catalyst compositions.
Type:
Application
Filed:
April 15, 2003
Publication date:
December 11, 2003
Applicant:
Eastman Chemical Company
Inventors:
Leslie Shane Moody, Peter Borden MacKenzie, Christopher Moore Killian, Gino Georges Lavoie, James Allen Ponasik, Thomas William Smith, Jason Clay Pearson, Anthony Gerard Martin Barrett
Abstract: Copper pyrazolate precursor compositions useful for the formation of copper in semiconductor integrated circuits, e.g., interconnect metallization in semiconductor device structures, as an adhesive seed layer for plating, for the deposition of a thin-film recording head and for circuitization of packaging components. The copper pyrazolate precursor compositions include fluorinated and non-fluorinated pyrazolate copper (I) complexes and their Lewis base adducts. Such precursors are usefully employed for liquid delivery chemical vapor deposition of copper or copper-containing material on a substrate.
Type:
Grant
Filed:
February 1, 2002
Date of Patent:
October 28, 2003
Assignee:
Advanced Technology Materials, Inc.
Inventors:
Chongying Xu, Thomas H. Baum, Ziyun Wang
Abstract: The invention relates to a complex of ruthenium of the structural formula I,
where X1 and X2 are identical or different and are each an anionic ligand,
R1 and R2 are identical or different and can also contain a ring, and R1 and R2 are each hydrogen or/and a hydrocarbon group,
the ligand L1 is an N-heterocyclic carbene and the ligand L2 is an uncharged electron donor, in particular an N-heterocyclic carbene or an amine, imine, phosphine, phosphite, stibine, arsine, carbonyl compound, carboxyl compound, nitrile, alcohol, ether, thiol or thioether,
where R1, R2, R3 and R4 are hydrogen or/and hydrocarbon groups.
Type:
Grant
Filed:
November 27, 2000
Date of Patent:
October 21, 2003
Assignee:
Degussa AG
Inventors:
Wolfgang Anton Herrmann, Wolfgang Schattenmann, Thomas Weskamp
Abstract: An object of the present invention is to provide a material having spectroscopic properties, light resistance, solubility and thermal decomposition properties suitable for recording for DVD-R.
Abstract: A compound useful as a cocatalyst or cocatalyst component, especially for use as an addition polymerization catalyst compound, corresponding to the formula:
(A*+a)b(Z*J*j)−cd,
wherein:
A* is a cation of from 1 to 80, preferably 1 to 60 atoms, not counting hydrogen atoms, said A* having a charge +a,
Z* is an anion group of from 1 to 50, preferably 1 to 30 atoms, not counting hydrogen atoms, further containing two or more Lewis base sites;
J* independently each occurrence is a Lewis acid of from 1 to 80, preferably 1 to 60 atoms, not counting hydrogen atoms, coordinated to at least one Lewis base site of Z*, and optionally two or more such J* groups may be joined together in a moiety having multiple Lewis acidic functionality,
j is a number from 2 to 12 and
a, b, c, and d are integers from 1 to 3, with the proviso that a×b is equal to c×d, and provided further that one or more of A*, Z* or J* comprises a hydroxyl group or a polar group containing quiescent reactive functionali
Type:
Grant
Filed:
July 12, 2001
Date of Patent:
September 30, 2003
Assignee:
The Dow Chemical Company
Inventors:
David A. Babb, Richard E. Campbell, Jr., David R. Neithamer, Grant B. Jacobsen, Edmund M. Carnahan
Abstract: Compositions and methods are described for hydrating terminal alkynes catalytically in anti-Markovnikov fashion. The compositions comprise a transition metal complex including at least one organic ligand having at least two heteroatoms, wherein the heteroatoms are directly bonded or located one atom away. Preferably, at least one of the heteroatoms is nitrogen, which is typically provided as part of a heterocyclic ring. Other preferred heteroatoms include S, P, N, As or Se. A particularly preferred catalyst employs a P-linked imidazole ligand bound to Ru. Such complexes have a controlled adaptable proton transfer ability and/or a hydrogen bonding ability making them particularly useful as chemical reaction facilitators.
Abstract: Chelating ligand precursors for the preparation of olefin metathesis catalysts are disclosed. The resulting catalysts are air stable monomeric species capable of promoting various metathesis reactions efficiently, which can be recovered from the reaction mixture and reused. Internal olefin compounds, specifically beta-substituted styrenes, are used as ligand precursors. Compared to terminal olefin compounds such as unsubstituted styrenes, the beta-substituted styrenes are easier and less costly to prepare, and more stable since they are less prone to spontaneous polymerization. Methods of preparing chelating-carbene metathesis catalysts without the use of CuCl are disclosed. This eliminates the need for CuCl by replacing it with organic acids, mineral acids, mild oxidants or even water, resulting in high yields of Hoveyda-type metathesis catalysts.
Type:
Grant
Filed:
November 15, 2002
Date of Patent:
September 16, 2003
Inventors:
Richard L. Pederson, Jason K. Woertink, Christopher M. Haar, David E. Gindelberger, Yann Schrodi
Abstract: An organometallic luminescent material comprising the compound of formula (I) of the present invention can emit pure blue light and have high thermal stability: 1
Abstract: The invention provides a process for the in-situ generation of a metathesis active catalyst of the formula:
comprising contacting an NHC carbene with a dimer of the formula [(arene)MX1X]2 and an
alkyne of the formula RC≡CR1 or wherein
M is ruthenium or osmium;
X and X1 are the same or different and are each independently an anionic ligand;
NHC is any N-heterocyclic carbene ligand;
R, R1 and R2 are each independently hydrogen or a substituted or unsubstituted substituent selected from the group consisting of C1-C20 alkyl, C2-C20 alkenyl, C2-C20 alkynyl, aryl, C1-C20 carboxylate, C1-C20 alkoxy, C2-C20 alkenyloxy, C2-C20 alkynyloxy, aryloxy, C2-C20 alkoxycarbonyl, C1-C20 alkylthio, C1-C20 alkylsulfonyl and C1-C20 alkylsulfinyl; and
R3 is OH.
Preferably, the NHC is an s-IMES or IMES carbene ligand; the arene is preferably p-cymene and the alkyne is preferably acetylene.
Type:
Grant
Filed:
September 5, 2001
Date of Patent:
August 26, 2003
Assignees:
Cymetech, LLP, California Institute of Technology
Inventors:
Robert H. Grubbs, Janis Louie, John P. Morgan, Jason L. Moore
Abstract: Novel transition metal complexes of iron, cobalt, ruthenium, osmium, and vanadium are described. The transition metal complexes can be used as redox mediators in enzyme based electrochemical sensors. In such instances, transition metal complexes accept electrons from, or transfer electrons to, enzymes at a high rate and also exchange electrons rapidly with the sensor. The transition metal complexes include at least one substituted or unsubstituted biimidazole ligand and may further include a second substituted or unsubstituted biimidazole ligand or a substituted or unsubstituted bipyridine or pyridylimidazole ligand. Transition metal complexes attached to polymeric backbones are also described.
Abstract: Novel polymeric transition metal complexes of iron, cobalt, ruthenium, osmium, and vanadium are described. The polymeric transition metal complexes can be electron transfer mediators in enzyme-based electrochemical sensors. In such instances, transition metal complexes accept electrons from, or transfer electrons to, enzymes at a high rate and also exchange electrons rapidly with the sensor.
Abstract: The present invention relates to a process for preparing polyaryl compounds by coupling aryl halides or aryl sulphonates and reactive aryl compounds in the presence of novel transition metal complexes of N-heterocyclic carbenes which, just like the N-heterocyclic carbenes themselves and the salts from which they are derived, form part of the invention.
Type:
Application
Filed:
October 24, 2002
Publication date:
August 7, 2003
Inventors:
Hans-Christian Militzer, Ulrich Scholz, Wolfgang A. Herrmann, Christian Gstottmayr
Abstract: A method for the preparation of aryl methyl ketones converts a variety of ethyl arenas to the corresponding aryl methyl ketones using a dioxygen-containing gas as the oxidant. The catalyst used for the reaction is a metal complex bearing general formulas as disclosed.
Type:
Application
Filed:
January 25, 2002
Publication date:
July 31, 2003
Applicant:
The Hong Kong Polytechnic University
Inventors:
Albert Sun-Chi Chan, Jian-Ying Qi, Cheng-Chao Pai, Xian-Jun Li, Li-Sheng Deng, Wen-Zao Li, Bin Sun, Jia-Yuan Hu
Abstract: Novel triazolinethilone-phosphoric acid derivatives of the formula
in which
R1, R2, R3 and Q are each as defined in the description
and their metal salt complexes,
a process for preparing the novel substances and their use as microbicides in crop protection and in the protection of materials are described.
Type:
Grant
Filed:
November 15, 2001
Date of Patent:
July 1, 2003
Assignee:
Bayer Aktiengesellschaft
Inventors:
Stefan Hillebrand, Bernd-Wieland Krüger, Manfred Jautelat, Klaus Stenzel, Astrid Mauler-Machnik, Stefan Dutzmann
Abstract: 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 organic reactions.
Abstract: Pro-drug forms of linear polyamine-bridged platinum compounds and methods for their production and use are provided. The polyamine-bridge portion of the compounds is based on spermine or spermidine, and the central amines of the polyamine-bridge are chemically bonded to labile blocking groups. The presence of the blocking groups serves to minimize the toxicity of the Pt compounds upon administration. Selective removal of the blocking groups and release of the active, unblocked species occurs upon exposure to suitable environmental conditions.
Type:
Application
Filed:
August 22, 2002
Publication date:
June 19, 2003
Inventors:
Nicholas Farrell, Alexander Hegmans, John D. Roberts
Abstract: Novel tumor specific phototherapeutic and photodiagnostic agents are disclosed. The compounds consist of a carbocyanine dye for visualization, photosensitizer for photodynamic treatment, and tumor receptor-avid peptide for site-specific delivery of the probe and phototoxic agent to diseased tissues. A combination of these elements takes full advantage of the unique and efficient properties of each component for an effective patient care management.
Type:
Application
Filed:
October 17, 2001
Publication date:
June 5, 2003
Applicant:
MALLINCKRODT INC.
Inventors:
Samuel Achilefu, Raghavan Rajagopalan, Richard B. Dorshow, Joseph E. Bugaj
Abstract: Novel tumor specific phototherapeutic and photodiagnostic agents are disclosed. The compounds consist of a carbocyanine dye for visualization, photosensitizer for photodynamic treatment, and tumor receptor-avid peptide for site-specific delivery of the probe and phototoxic agent to diseased tissues. A combination of these elements takes full advantage of the unique and efficient properties of each component for an effective patient care management.
Type:
Application
Filed:
October 17, 2001
Publication date:
June 5, 2003
Applicant:
MALLINCKRODT INC.
Inventors:
Samuel Achilefu, Joseph E. Bugaj, Richard B. Dorshow, Raghavan Rajagopalan
Abstract: Compounds of the formula I
[LnMmXp]ZYq (1)
are claimed, where L is a ligand of the formula II
and the individual symbols have the meanings defined in the description. The metal complexes are suitable as bleaching catalysts in detergents, cleaners and disinfectants which comprise peroxy compounds.
Type:
Grant
Filed:
September 8, 2000
Date of Patent:
April 8, 2003
Assignee:
Clariant GmbH
Inventors:
Michael Seebach, Gerd Reinhardt, Thomas Schönherr, Edwin Weber
Abstract: An improved catalyst based on cobalt and/or rhodium dissolved in a non-aqueous ionic solvent which is liquid at a temperature of less than 90° C. More particularly, the catalyst comprises at least one complex of cobalt and/or rhodium coordinated with at least one nitrogen-containing ligand and the non-aqueous ionic solvent comprises at least one quaternary ammonium and/or phosphonium cation and at least one inorganic anion.
Type:
Application
Filed:
July 12, 2002
Publication date:
March 20, 2003
Applicant:
Institut Francais du Petrole
Inventors:
Gerhard Hillebrand, Andre Hirschauer, Dominique Commereuc, Helene Olivier-Bourbigou, Lucien Saussine
Abstract: An organic EL device includes a luminescence layer containing, as a luminescent material allowing a high-luminescence and high-efficiency luminescence for a long period of time, a metal coordination compound represented by the following formula (1): LmML′n, wherein M denotes Ir, Pt, Ph or Pd; L denotes a bidentate ligand; L′ denotes a bidentate ligand different from L; m is an integer of 1, 2 or 3; and n is an integer of 0, 1 or 2 with the proviso that the sum of m and n is 2 or 3.
Abstract: Ferrocene anchored chiral ligands and metal complexes based on such chiral ligands useful in asymmetric catalysis are disclosed. The metal complexes according to the present invention are useful as catalysts in asymmetric reactions, such as, hydrogenation, hydride transfer, allylic alkylation, hydrosilylation, hydroboration, hydrovinylation, hydroformylation, olefin metathesis, hydrocarboxylation, isomerization, cyclopropanation, Diels-Alder reaction, Heck reaction, isomerization, Aldol reaction, Michael addition; epoxidation, kinetic resolution and [m+n] cycloaddition. The new ligands are effective for asymmetric Pd-catalyzed allylic alkylation reactions and Ag-catalyzed [3+2] cyclization of azomethine ylides.
Abstract: A catalyst obtained by contacting a specific transition metal compound (A) of Group 7 of the Periodic Table of the Elements, having a pyrazolyl group with an aluminum compound selected from organoaluminums and aluminoxanes and/or a specific boron compound, and a process for producing an addition polymer which comprises polymerizing an addition polymerizable monomer with the catalyst.
Abstract: A platinum complex is described to include a platinum(IV) metal center so positioned and oriented in the complex so as to complex in cis orientations with two hydride groups and with an alkyl group.
Type:
Grant
Filed:
May 16, 2002
Date of Patent:
December 31, 2002
Assignee:
Technion Research and Development Foundation Ltd.
Abstract: The invention concerns novel organometallic complexes comprising cationic heterocyclic carbenes. It also concerns a method for preparing said complexes from dicationic heterocyclic precursor compounds. It further concerns the use as catalysts of said organometallic complexes for a certain number of chemical reactions.
Type:
Grant
Filed:
June 21, 2001
Date of Patent:
December 10, 2002
Assignee:
Rhodia Fiber & Resin Intermediates
Inventors:
Guy Bertrand, Lutz Stelzig, Olivier Guerret, Christophe Buron, Heinz Gornitzka, Paolo Burattin
Abstract: Organometallic complexes comprising a divalent lanthanide metal cation complexed with from one to three polydentate ligands which preferably contain one or more pyrazolyl groups, such as trispyrazolylborate anions, are useful in light emitting devices e.g., in electroluminescent flat panel displays.
In the complexes, several classes of which are novel, the lanthanide metal is preferably Eu since the Eu complexes have the ability to exhibit bright electroluminescence ranging from yellow to orange to blue.
Type:
Grant
Filed:
July 31, 2001
Date of Patent:
December 10, 2002
Assignee:
Isis Innovation Limited
Inventors:
Victor Christou, Oleg Victorovitch Salata, Christopher Shipley
Abstract: Emissive phosphorescent organometallic compounds are described that produce improved electroluminescence, particularly in the blue region of the visible spectrum. Organic light emitting devices employing such emissive phosphorescent organometallic compounds are also described. Also described is an organic light emitting layer including a host material having a lowest triplet excited state having a decay rate of less than about 1 per second; a guest material dispersed in the host material, the guest material having a lowest triplet excited state having a radiative decay rate of greater than about 1×105 or about 1×106 per second and wherein the energy level of the lowest triplet excited state of the host material is lower than the energy level of the lowest triplet excited state of the guest material.
Type:
Application
Filed:
October 16, 2001
Publication date:
December 5, 2002
Applicant:
TRUSTEE OF PRINCETON UNIVERSITY
Inventors:
Sergey Lamansky, Mark E. Thompson, Vadim Adamovich, Peter I. Djurovich, Chihaya Adachi, Marc A. Baldo, Stephen R. Forrest, Raymond Kwong
Abstract: New ligands, compositions, metal-ligand complexes and arrays with pyridyl-amine ligands are disclosed that catalyze the polymerization of monomers into polymers. Certain of these catalysts with hafnium metal centers have high performance characteristics, including higher comonomer incorporation into ethylene/olefin copolymers, where such olefins are for example, 1-octene, isobutylene or styrene. Certain of the catalysts are particularly effective at polymerizing propylene to high molecular weight isotactic polypropylene in a solution process at a variety of polymerization conditions.
Type:
Application
Filed:
November 6, 2001
Publication date:
October 3, 2002
Applicant:
Symyx Technologies, Inc.
Inventors:
Thomas R. Boussie, Gary M. Diamond, Christopher Goh, Keith A. Hall, Anne M. LaPointe, Margarete K. Leclerc, Cheryl Lund, Vince Murphy
Abstract: Methods of forming a film on a substrate using chemical vapor deposition techniques and pyrazolyl complexes. The complexes and methods are particularly suitable for the preparation of semiconductor structures.
Abstract: The invention discloses ruthenium alkylidene complexes of the type (PCy3)(L)Cl2Ru(CHPh), where L is a triazolylidene ligand of the general formula:
These catalysts have been found to be considerably more active for olefin metathesis at elevated temperatures than the parent catalyst (PCy3)2Cl2Ru(CHPh)(2). For example, complex 14 (L=1,3,4-triphenyl-4.5-dihydro-1H-triazol-5-ylidene) is able to catalyze the ring-closing metathesis of substituted dienes to give tetra-substituted cyclic olefins in good yield. In addition, this complex demonstrates the analogous stability towards oxygen and moisture exhibited by ruthenium alkylidene 2.
Abstract: A process for the manufacture of zinc hexasulfide amine complexes comprising reacting zinc, sulfur and a molar excess of amine at an elevated temperature to obtain a reaction mixture comprising zinc hexasulfide amine complexes and excess amine. A first solvent in which the zinc hexasulfide amine complexes are largely not soluble is added to obtain a slurry of the reaction mixture. The zinc hexasulfide amine complexes may be recovered in a subsequent separation process.
Type:
Grant
Filed:
June 28, 2000
Date of Patent:
July 16, 2002
Assignee:
Flexsys America L.P.
Inventors:
Jayant S. Lodaya, Otto W. Maender, Paul M. Mitchem
Abstract: Copper pyrazolate precursor compositions useful for the formation of copper in semiconductor integrated circuits, e.g., interconnect metallization in semiconductor device structures, as an adhesive seed layer for plating, for the deposition of a thin-film recording head and for circuitization of packaging components. The copper pyrazolate precursor compositions include fluorinated and non-fluorinated pyrazolate copper (I) complexes and their Lewis base adducts. Such precursors are usefully employed for liquid delivery chemical vapor deposition of copper or copper-containing material on a substrate.
Type:
Application
Filed:
February 1, 2002
Publication date:
July 11, 2002
Inventors:
Chongying Xu, Thomas H. Baum, Ziyun Wang
Abstract: Amyloid binding compounds which are derivatives of Chrysamine G, pharmaceutical compositions containing, and methods using such compounds to identify Alzheimer's brain in vivo and to diagnose other pathological conditions characterized by amyloidosis, such as Down's Syndrome are described. Pharmaceutical compositions containing Chrysamine G and derivatives thereof and methods using such compositions to prevent cell degeneration and amyloid-induced toxicity in amyloidosis associated conditions are also described. Methods using Chrysamine G derivatives to stain or detect amyloid deposits in biopsy or post-mortem tissue are also described. Methods using Chrysamine G derivatives to quantify amyloid deposits in homogenates of biopsy and post-mortem tissue are also described.
Type:
Grant
Filed:
November 6, 1997
Date of Patent:
July 9, 2002
Assignee:
University of Pittsburgh
Inventors:
William E. Klunk, Jay W. Pettegrew, Chester A. Mathis, Jr.
Abstract: The subject invention provides a binuclear metal complex having structure (I) wherein M1, and M2 are independently selected from the group consisting of Fe, Co, Mn and Ru; wherein m and n are independently +2 or +3; wherein R1, R2, R3, R4, R5 and R6 are independently a linear C1-C6 alkyl, C5-C6 cycloalkyl, phenyl, etc.; wherein (i) R1 and R2, (ii) R3 and R4, or (iii) R5 and R6 independently and optionally are linked covalently and together with the respective adjoining C atom comprise a spirocyclic ring; wherein i, j and k are integers such that 2≦i+j+k≦4; wherein p is 1 or 2, and q is 0, 1 or 2 such that m+n−4=p×q; wherein (i) R1 or R2 and R3 or R4, (ii) R3 or R4 and R4 or R5, or (iii) R1 or R2 and R5 or R6 independently and optionally are linked covalently and together with the respective adjoining C atoms comprise a fused ring; wherein Ar is 1,2-phenylene, 1,2- or 2,3-naphthylene, etc.
Type:
Grant
Filed:
June 6, 2000
Date of Patent:
May 28, 2002
Assignee:
Yale University
Inventors:
John P. Caradonna, Subhasish Mukerjee, Adonis Stassinopoulos
Abstract: A method of producing a metal salt of 2,4-oxazolidinedione of the general formula (III) wherein a 2-hydroxycarboxylate of the general formula (I), urea and a metal alkoxide of the formula (II) are reacted in an aromatic hydrocarbon; or a 2-hydroxycarboxylate of the general formula (I) and a metal alkoxide of the formula (II) are added to urea, and, then, they are reacted is provided: 1
Abstract: Neutral, multidentate azacyclic ligands and Group 3-10 transition metal complexes that contain them are disclosed. The ligands have the general formula: Ra—A—(L)b where R is hydrogen or hydrocarbyl, A is silicon, tin, germanium, or lead, each L is a pyrazolyl, triazolyl, or tetraazolyl group, a=0 to 2, b=2 to 4, and a+b=4. When used with common activators, the transition metal complexes provide excellent single-site catalysts for olefin polymerization.
Abstract: Compositions including at least one organic ligand including a first hetero atom and a second hetero atom directly bonded to the first hetero atom or located one carbon atom away from the first hetero atom, with at least one of the hetero atoms being nitrogen, and a transition metal moiety partially complexes by the organic ligand are provided. Such complexes have a controlled adaptable proton transfer ability and/or a hydrogen bonding ability which makes such compositions particularly useful as chemical reaction facilitators. Examples of chemical reactions facilitated by such compositions include hydrolysis reactions and carbon dioxide conversion reactions.
Abstract: Copper pyrazolate precursor compositions useful for the formation of copper in semiconductor integrated circuits, e.g., interconnect metallization in semiconductor device structures, as an adhesive seed layer for plating, for the deposition of a thin-film recording head and for circuitization of packaging components. The copper pyrazolate precursor compositions include fluorinated and non-fluorinated pyrazolate copper (I) complexes and their Lewis base adducts. Such precursors are usefully employed for liquid delivery chemical vapor deposition of copper or copper-containing material on a substrate.
Type:
Application
Filed:
December 13, 2001
Publication date:
April 11, 2002
Inventors:
Chongying Xu, Thomas H. Baum, Ziyun Wang
Abstract: There is disclosed a chiral molecular magnet having characteristics exhibiting a monocrystal, a magnetic property, an optical activity, a transparent color and a relatively high transition temperature. This chiral molecular magnet is formed of a monocrystal represented by a general formula [Mn(L)]3[Cr(CN)6]2.4H2O (wherein L is optically active (R or S)-1,2-diamines and derivatives thereof or optically active (R or S)-1,3-diamines and derivatives thereof).