Abstract: A multinuclear complex comprising a plurality of metal atoms and a ligand L coordinating to the metal atoms, and satisfying the following conditions (i), (ii), (iii) and (iv): (i) The ligand L has a monovalent group represented by the following general formula (1) and/or a divalent group represented by the following general formula (2), (ii) The ligand L has at least 5 coordination atoms bonding to the metal atom, (iii) At least one of the coordination atoms bonds to two of the metal atoms, or the minimum number of covalent bonds between any two selected coordination atoms is 1-5, and (iv) The ligand L is soluble in the solvent.

Abstract: Compounds are provided that are useful as precatlysts in the polymerization of olefins such as ethylene and propylene. Other compounds are useful as intermediates in the production of such precatalysts.

Abstract: A blue phosphorescent compound and an organic electroluminescent device using the same are provided. The blue phosphorescent compound can emit deep blue light and can improve color purity and reduce power consumption when used in an organic electroluminescent device.

Abstract: A class of organic metal complexes with mixed ligands for organic light emitting diodes are designed and characterized as the formula:(L2L3M)n. In this formula: L2 is a bidentate ligand which has at least one coordinate atom of oxygen; L3 is a tridentate ligand with three chelate points; M is trivalent metal selected from the group consisting of Al, Ga, In, Tl, and Ir; and n is an integer of from 1 to 2. In Formula (3), X, Y independently represent CH or N and II, III are unsubstituted or substituted aryl or heteroalkyl groups. The substituent groups can be alkyl having 1–8 carbon atoms, halogen, cyano, amino, amido, sulfonyl, carbonyl, aryl, or heteroalkyl groups such as furan, thiophene, pyrrole, pyridine, etc.

Abstract: An electroluminescent material is a metal complex, preferably aluminium, of a substituted pyrazol-5-one.

Abstract: The present invention relates to novel hexacoordinated metathesis catalysts and to methods for making and using the same. The inventive catalysts are of the formula wherein: M is ruthenium or osmium; X and X1 are the same or different and are each independently an anionic ligand; L, L1′ and L2 are the same or different and are each independently a neutral electron donor ligand; and, R and R1 are each independently hydrogen or a 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 silyl.

Abstract: This invention relates to an organothiosulfonato Au(I) complex having the formula [A—SO2S—Au—SSO2—A]n−M+n wherein M is a cationic counter ion; A is a substituted or unsubstituted organic group; and n is 1 to 4; and wherein the compound is symmetrical. It further relates to the synthesis of said compounds.

Abstract: Dyes and pigments present in candle wax compositions are particularly well stabilized against color fade or color change by a combination of a UV absorber and a metal compound, particularly a tin compound. The further addition of a hindered amine or antioxidant is highly beneficial.

Abstract: Novel naphthol derivatives, and various azo compounds and metal complexes prepared by using the derivatives are provided. The instant invention provides naphthol derivatives represented by general formula (1); wherein at least one of Y1 and Y2 is a group represented by formula (2); wherein X1 is —O—, —S— or —NH—; and Z is an optionally substituted aromatic group or heterocyclic group having conjugated double bonds, and salts thereof; mono-, bis-, and trisazo compounds prepared from the derivatives; and metal complexes containing the derivatives as the ligand.

Abstract: Chiral, unsymmetrical bidentate organophosphorus ligands of the formula (I) are reacted with transition metal centers to form complexes with catalytic activity. The compounds contain chiral bicycloaliphatic skeletons. Synthesis of the bidentate ligands proceeds from norbornyl derivatives.

Abstract: This invention relates to an organomercapto Au(I) complex having the formula [(M—SOL)n—A—S—Au—S—A—(SOL—M)n]M wherein M is a cationic counterion; SOL is a solubilizing group: A is a substituted or unsubstituted divalent organic linking group; and n is 1 to 4 and wherein the compound is symmetrical. It further relates to a method of manufacturing an organomercapto Au(I) complex comprising reacting an Au (I) complex with an organomercapto ligand and isolating the resulting organomercapto Au(I) complex from the reaction mixture.

Abstract: Heterocyclic derivatives of the formula (I) wherein each symbol is as defined in the specification, pharmaceutically acceptable salts thereof and method of producing them. Pharmaceutical compositions containing the heterocyclic derivative or a pharmaceutically acceptable salt thereof, particularly, ACAT inhibitors and lipoperoxidation inhibitors. The heterocyclic derivatives and pharmaceutically acceptable salts thereof of the present invention show superior ACAT inhibitory activity and lipoperoxidation inhibitory activity, and are useful as ACAT inhibitors and hyperlipemia inhibitors. To be specific, they are useful for the prevention and treatment of arteriosclerotic lesions of arteriosclerosis, hyperlipemia and diabetes, as well as ischemic diseases of brain, heart and the like.

Abstract: Hexacoordinated ruthenium and osmium catalysts of the formulae ##STR1## in which M and M' independently of one another are ruthenium or osmium;X, X', Y and Y' independently of one another are anionic ligands, or X and Y and X' and Y' in each case together are bis-anionic ligandsL.sup.1 and L.sup.1' independently of one another are tertiary phosphine;L.sup.2 and L.sup.3 independently of one another are a monodentate ligand, or L.sup.2 and L.sup.3 together are bidentate, neutral electron donor ligands;L.sup.4 is tetradentate, neutral electron donor ligand;L.sup.5 is a bidentate, neutral electron donor ligand; andT and T' indepedently of one another are H or organic substituents, are useful for the synthesis of custom-tailored polymers and for the ring-closing metathesis of olefins.

Abstract: In one of its aspects, the invention relates to compounds of formula I ##STR1## M is Eu, Tb or Dy, Sm; R.sub.2 is hydrogen or C.sub.1 -C.sub.6 alkyl, andR.sub.1 and R.sub.3 are each independently of the other phenyl, hydrogen or C.sub.1 -C.sub.6 alkyl, andL is p-N,N-dimethylaminopyridine, N-methylimidazole or p-methoxypyridine-N-oxide.The invention also relates to the use of these compounds for optical sensors sensitive to impact, tension or pressure.

Abstract: Heterocyclic derivatives of the formula (I) ##STR1## wherein each symbol is as defined in the specification, pharmaceutically acceptable salts thereof and method of producing them. Pharmaceutical compositions containing the heterocyclic derivative or a pharmaceutically acceptable salt thereof, particularly, ACAT inhibitors and lipoperoxidation inhibitors. The heterocyclic derivatives and pharmaceutically acceptable salts thereof of the present invention show superior ACAT inhibitory activity and lipoperoxidation inhibitory activity, and are useful as ACAT inhibitors and hyperlipemia inhibitors. To be specific, they are useful for the prevention and treatment of arteriosclerotic lesions of arteriosclerosis, hyperlipemia and diabetes, as well as ischemic diseases of brain, heart and the like.

Abstract: A metal chelate compound of the formulaL.sub.n --M.sup.+n (I)wherein M represents a metal; n is an integer, or number of from 1 to 3; and L is a ligand of ##STR1## wherein Ar is aryl; X is selected from the group consisting of oxygen, sulfur, and selenium; N is nitrogen; O is oxygen; and Z is a suitable aromatic component.

Abstract: The present invention is drawn to complexes of dibenzyl-organotin compounds having nitrogen or sulfur containing heterocyclic ligands. Said complexes are useful as cytotoxic agents.

Abstract: Compounds having the formula ##STR1## wherein each A may be the same or different and is an alkyl group, a phenyl group or a substituted derivative of a phenyl group;Y may be the same or different and is hydrogen, an unbranched alkyl group, a halide or a group having the structure ##STR2## wherein R is hydrogen, an alkoxide group, an alkyl group, or OH; B may be the same or different and each is hydrogen or an alkyl group;Z.sup.- is a soluble, pharmaceutically acceptable negative ion, andX may be the same or different and is an axial ligand selected from the group consisting of moieties having the formula: ##STR3## The compounds and compositions thereof exhibit antiviral activity.

Abstract: Ruthenium complexes with a chiral ligand of the general formula: ##STR1## are used for the enantioselective transfer hydrogenation of prochiral ketones.

Abstract: A novel catalyst comprising the formula:LRE(O)nwhereinL is selected from the group consisting of(a) (R.sub.1)(AL)wherein R.sub.1 is an alkyl side chain containing at least one carbon-rhenium covalent bond, andAL is a molecule having C.sub.2 to C.sub.50, and has at least one hetero atom selected from the group consisting of N, O, S, and P wherein there is at least one hetero-rhenium dative bond, and has at least one chiral center. and(b) R.sub.AL is a straight or branched chain alkyl or arylalkyl group containing C.sub.2 to C.sub.50 and containing at least one heteroatom selected from the group consisting of N, O, S, and P, with the proviso that said alkyl group contains at least one carbon-rhenium covalent bond and at least one hetero-rhenium dative bond, and has at least one chiral center:and n is an integer which is 2, 3, 4, or 5 and which has utility in areas such as epoxidation of olefins.

Abstract: Nonlinear optical compounds having structures with delocalized resonance configurations corresponding to: ##STR1## wherein A.sub.1 and A.sub.2 are independently selected from electron withdrawing moieties; R.sub.1 and R.sub.2 are independently selected from aromatic rings, heteroaromatic rings and fused ring systems consisting of two or three aromatic or heteroaromatic rings; n and m are integers from one to five, and D.sub.1 and D.sub.2 are independently selected from hydrogen, electron donating groups and polymer attachment groups, with the proviso that at least one of D.sub.1 and D.sub.2 is an electron donating group. Polymers blended with, cured with, or having pendant side chains of the disclosed nonlinear optical materials and exhibiting second order nonlinear optical properties are also disclosed.

Abstract: Agents for the diagnosis or treatment of hypoxic cells comprise a bioreductive moiety such as 2-nitroimidazole, and a metal chelating moiety which is a bis-amine oxime of which a carbon atom adjacent a nitrogen atom is linked to the bioreductive moiety. A chelated metal atom or ion preferably Technetium-99m. The agent diffuses into cells where the 2-nitroimidazole is reduced thus trapping the chelated metal in the cell.

Abstract: A photostable cyanine dye possessing a structure represented by the general formula I or II:.PHI..sup.+ -L=.PSI..multidot.Q.sup.- (I).PHI.=L-.PSI..sup.+ .multidot.Q.sup.- (II)wherein .PHI. denotes a monovalent or divalent residue of thiazole ring, oxazole ring, selenazole ring, imidazole ring, pyridine ring, indolenine ring, benzoindolenine ring or dibenzoindolenine ring which may have an aromatic ring condensed thereto, .PSI. denotes a divalent or monovalent residue of thiazole ring, oxazole ring, selenazole ring, imidazole ring, pyridine ring, indolenine ring, benzoindolenine ring or dibenzoindolenine ring which may have an aromatic ring condensed thereto, L denotes a polymethine connecting group for the formation of a cyanine dye, and Q.sup.- denotes an anion represented by the general formula III: ##STR1## wherein M denotes a transition metal atom, R.sup.1, R.sup.2, R.sup.3 and R.sup.

Abstract: .beta.-hydroxyhistidine, 4-(1-hydroxy-1-alkyl)imidazole or derivatives thereof can be used as a bidentate ligand in the chelation of iron(III), Al(III), Cr(III), Ga(III) and the actinides(IV), such as plutonium 238. .beta.-hydroxyhistidine is found in a pyoverdine-type siderophore produced by Pseudomonas fluorescens 244.

Abstract: The invention relates to salts formed between basic H.sub.2 -receptor antagonists and a complex of bismuth with a carboxylic acid, and solvates of such salts, excluding salts in which the basic H.sub.2 -receptor antagonist is ranitidine. Examples of suitable carboxylic acids are citric acid and tartaric acid. Examples of basic H.sub.2 -receptor antagonists are cimetidine, sufotidine famotidine and nizatidine.The salts are useful in the treatment of gastrointestinal disorders, particularly gastroduodenal conditions. The salts show the antisecretory activity associated with the basic H.sub.2 -receptor antagonist together with antibacterial activity against Campylobacter pylori, and they also possess cytoprotective properties.

Abstract: Novel magnetic resonance imaging agents comprise complexes of paramagnetic ions with hydrazide derivatives of polyaminocarboxylic acid chelating agents. These novel imaging agents are characterized by excellent NMR image-contrasting properties and by high solubilities in physiological solutions.A novel method of performing an NMR diagnostic procedure involves administering to a warm-blooded animal an effective amount of a complex as described above and then exposing the warm-blooded animal to an NMR imaging procedure, thereby imaging at least a portion of the body of the warm-blooded animal.

Abstract: Dimercaptothiadiazole reacted with arylsulfonic acids preformed or formed in situ in lubricants provide multifunctional antioxidant, antiwear, and corrosion inhibiting properties thereto.

Abstract: A process is provided for selectively separating oxygen from an oxygen-containing fluid stream by bringing said fluid stream into contact with a high capacity solid state cyanocobaltate complex in a non-aluminosilicate environment represented by the chemical formula:A.sub.X/Z.sup.Z+ [Co(CN).sub.n ].sup.X- .cndot.pSwhere:A is an alkali, alkaline earth, transition, or Group 12 metal atom;Z is 1, 2 or 3;n is any number from 3 to 5;X is n-2;p is any number from greater than zero to 6; andS is a ligand which is capable of coordinating with A.sup.Z+, Co or both.These complexes chemically bind oxygen to form novel oxygen adducts, thereby selectively removing oxygen from the fluid stream. The bound oxygen may be recovered by increasing the temperature or by reducing the partial pressure of O.sub.2 above the adduct.

Abstract: Disclosed is a novel oxazolidine compound containing a titanium atom or a silicon atom. The ozazolidine compound is represented by the following formula [I]; ##STR1## wherein R represents a hydrogen atom, a C.sub.1 -C.sub.10 alkyl, an aryl group, a vinyl group, a C.sub.1 -C.sub.10 halogen substituted alkyl group or a C.sub.1 -C.sub.10 alkoxy group, M represents a silicon atom or a titanium atom, R.sup.1 represents a C.sub.2 -C.sub.5 alkylene group, R.sup.2 and R.sup.3 respectively represent a hydrogen atom, a C.sub.1 -C.sub.10 alkyl group or an aryl group, R.sup.4 represents a hydrogen atom or a methyl group and n is an integer of 0 to 3.

Abstract: Compounds of the general formula ##STR1## in which n denotes 1 or 2,X denotes an OMe group,Me denotes a proton, an alkali metal cation or an optionally substituted ammonium cation,R denotes hydrogen, a lower alkyl group or halogen, and, in the event thatn is 1,X also denotes an --NR.sup.1 R.sup.2 group in which R.sup.1 and R.sup.2 represent hydrogen or a lower alkyl group,a process for their preparation and their use as optical brighteners, especially for polyamide fibers and wool.

Abstract: Diaminocyclohexane platinum complexes having the structural formula ##STR1## wherein: X is a monovalent anion selected from the group consisting of isoascorbate, monosaccharate, saccharate-4-lactone, shikimate, isethionate, 2-aminoethylsulfate, azetidinecarboxylate, proline, hydroxyproline, pipecolinate, cyclopropanecarboxylate, cyclobutanecarboxylate, cyclopentanecarboxylate, cyclopentenecarboxylate, cyclohexanecarboxylate, cyclohexenecarboxylate, bicine, glycine, 2-aminoethanesulfonate, 2-chloroethanesulfonate andY is a divalent anion selected from the group consisting of iminodiacetate, isocitratelactone, furanedicarboxylate, cyclopropane-1,1-dicarboxylate, isocitratomonoethylester, N-methyliminodiacetate, N-(2-hydroxyethyl)-iminodiacetate, N-benzyliminodiacetate, N-phenyliminodiacetate, N-(2-acetamido)iminodiacetate, cyclohexane-1,1-diacetate, trans-1,2-cyclopropanedicarboxylate, trans-1,2-cyclobutanedicarboxylate, trans-1,2-cyclopentanedicarboxylate and trans-1,2-cyclohexanedicarboxylateand their use in

Abstract: Water soluble dyestuffs having at least two reactive Lewis base sites are polymerized in a condensation reaction with group IVB metallocenes or group IVA organohalides to yield linear or crosslinked, and colored and/or fluorescent polymeric products. The polydyes are useful in providing permanent coloration of paper, plastics, textiles, paints and the like.

Abstract: Bis-platinum complexes having the formula ##STR1## wherein A is a ligand having two pairs of platinum-coordinating acidic groups which are each independently a carboxylate, phenolate, sulfonate or phosphonate group, each said pair being capable of coordinating with a platinum ion to form a 5-10 membered chelate ring; Z is a water-solubilizing group; n is 0 or a positive integer, with the proviso that n is 0 only when at least one of said platinum-coordinating acidic groups is sulfonate or phosphonate or when at least one platinum ion is a Pt(IV) ion; and R.sub.1, R.sub.2, R.sub.3, R.sub.4, R.sub.5 and R.sub.6 are each independently H or a C.sub.1-20 alkyl, aryl, aralkyl, or alkaryl group, or together form one or more C.sub.1-30 alkylene, cycloalkylene, arylene, aralkylene or alkarylene groups; or a pharmaceutically acceptable salt thereof, are useful as readily water-soluble antitumor agents.

Abstract: Silicon-containing 1,2,4-triazoles having broad-spectrum fungicidal activity have been discovered.

Abstract: The invention relates to a simplified process for the manufacture of 1:1 metal complexes of isoindoline azines of the formula ##STR1## wherein R is hydrogen, alkyl or aryl, Q contains an isocyclic or heterocyclic radical, acyl, carbamoyl or thiocarbamoyl, and Y is the radical of an active methylene group or aromatic amine, which comprises reacting a compound HQ or a hydrazone with an ortho ester or amidine in the presence of a metal donor at elevated temperature in a polar solvent. Pigments made by this process are lightfast and are useful in coloring plastics.

Abstract: Process for the preparation of 1:1 metal complexes of azines of the formula ##STR1## in which R.sub.1 is an H atom or an alkyl or aryl group, R.sub.2 is an isocyclic or heterocyclic radical with a hydroxyl or mercapto group adjacent to the azomethine group, Y' is the radical of a methylene-active compound or of an aryl-or heteroaryl-amine and the ring A can have substituents which do not confer solubility in water, which comprises heating a hydrazone of the formula ##STR2## with an isoindolinone of the formula ##STR3## in which R.sub.1, R.sub.2, A and Y' are as defined, in the presence of a metal donor, in a polar organic solvent.

Abstract: The invention relates to a simplified process for the manufacture of 1:1 metal complexes of isoindoline azines of the formula ##STR1## wherein R is hydrogen, alkyl or aryl, Q contains an isocyclic or heterocyclic radical, acyl, carbamoyl or thiocarbamoyl, and Y is the radical of an active methylene group or aromatic amine, which comprises reacting a compound HQ or a hydrazone with an ortho ester or amidine in the presence of a metal donor at elevated temperature in a polar solvent. Pigments made by this process are lightfast and are useful in coloring plastics.

Abstract: 1:1 metal complexes of isoindolinazines of the formula ##STR1## in which the ring A can be further substituted, R is a hydrogen atom or an alkyl or aryl group, B is an isocyclic or heterocyclic aromatic radical, R.sub.1 is the OH or SH group and Y is a radical of the formula ##STR2## in which Z.sub.1 and Z.sub.2 are O or S atoms, n is the number 1 or 2, R.sub.2 ' is an alkyl, aryl or heteroaryl radical and R.sub.2 is an alkyl, cycloalkyl, aralkyl or aryl radical or a radical of the formula ##STR3## in which R.sub.3 is an alkylene or arylene group. The novel pigments color plastics and surface coatings in pure, intense orange to red shades with good fastness properties.

Abstract: 1:1 metal complexes of azines of the formula ##STR1## in which the ring A can be further substituted, R is an H atom or an alkyl or aryl group, B is an isocyclic or heterocyclic aromatic radical or an alicyclic radical, R.sub.1 is the OH or SH group and Y is a radical of the formula ##STR2## in which Z is an O or S atom, n is the number 1 or 2 and R.sub.2 is an alkyl, aralkyl, cycloalkyl or aryl radical or an amino group which is unsubstituted or substituted by an alkyl, cycloalkyl, aralkyl or aryl radical.In plastics and surface coatings, the novel pigments give intense pure orange to violet colorations with good fastness properties.

Abstract: The invention relates to a process for the manufacture of 1:1 metal complexes of azines of the formula ##STR1## wherein R.sub.1 is a hydrogen atom, an alkyl or aryl group, R.sub.2 is an isocyclic or heterocyclic radical containing a hydroxyl or mercapto group adjacent to the azomethine group, Y is the radical of a compound which contains active methylene groups, or of an aryl or heteroaryl amine, and the ring A can contain substituents that do not confer solubility in water, which process comprises reacting a compound of the formula ##STR2## wherein R.sub.3 is a hydrogen atom or an alkyl radical, R.sub.4 is an alkyl, aryl or heteroaryl radical or the radical of the formula ##STR3## or R.sub.3 and R.sub.4, together with the nitrogen atom to which they are attached, form a 5- or 6-membered heterocyclic ring, and Y has the given meaning, with a hydrazone of the formula ##STR4## in the presence of a transition metal donor and in a polar organic solvent, at temperatures above 100.degree. C.

Abstract: Novel 1-(2-aryl-1,3-dioxolan-2-ylmethyl)-1H-1,2,4-triazoles wherein the 1,3-dioxolane ring is substituted in the 4-position which are useful for the protection of plants and plant products against fungal attack.

Abstract: Metal complex compounds which in the form of the free acids correspond to the formula I ##STR1## where A is an aliphatic, carbocyclic or heterocyclic radical,E is an aliphatic or carbocyclic radical,B is a cyano, acyl, substituted sulfonyl, carboxylic acid ester or carboxamide radical, orB and E together with the carbon atoms by which they are linked may be an alicyclic or heterocyclic radical,F is an aliphatic, carbocylic or heterocyclic radical,L is --O--, --COO--, ##STR2## n is 1, 2, 3 or 4, Y is .dbd.CH-- or .dbd.N-- andZ is ##STR3## or the radical of a coupling component, alkyl being of 1 to 4 carbon atoms, andR is hydrogen or unsubstituted or substituted alkyl, cycloalkyl, aryl or acyl and R.sup.1 and R.sup.2 are substituents conventionally present in dyes.The compounds of the formula I give fast dyeings on natural polyamides and synthetic nylons.

Abstract: Metal complexes of azomethines of the formula ##STR1## are useful for coloring plastics and lacquers in yellow to red shades of excellent fastness properties.

Abstract: Metal complexes of azomethines of the formula ##STR1## are useful for coloring plastics and lacquers in yellow to red shades of excellent fastness properties.

Abstract: Metal complexes of azomethines of the formula ##STR1## are useful for coloring plastics and lacquers in yellow to red shades of excellent fastness properties.