Abstract: The present invention discloses a novel synthesis method for a catalyst of formula 6, wherein Mes has the meaning of mesityl.

Abstract: The invention relates to a material composed of nanoparticles essentially comprising a spin transition compound. The compound corresponds to the formula [(Fe1-yMyL3)wL3][X2/x(1-z/x?)Y2z/x?]w in which L represents a 1,2,4-triazole ligand carrying an R substituent on the nitrogen in the 4 position; X is an anion having the valency x, 1?x?2; Y is an anion other than X having the valency x?, 1?x??2; R is an alkyl group or an R1R2N— group in which R1 and R2 represent, each independently of the other, H or an alkyl radical; M is a metal having a 3d4, 3d5, 3d6 or 3d7 configuration, other than Fe; 0?y?1; 0?z?2; 3?w?1500. Applications: thermochromic pigment, data storage, optical limiters, contrast agent.

Abstract: A composition includes a Group (VIII) transition metal, an anionic ligand bonded to the metal, a neutral electron donor ligand bonded to the metal, and an alkylidene group bonded to the metal. The alkylidene group includes a cycloaliphatic radical substituted with an ionic group. An associated method is also provided.

Abstract: A metal complex compound having a specific structure having a metal atom such as iridium atom, and an organic electroluminescence device which has one or more organic thin film layers including at least a light emitting layer and sandwiched between a pair of electrodes and contains the metal complex compound in at least one layer in the organic thin film layer. The organic electroluminescence device exhibits a great efficiency of light emission and has a long lifetime. The device can be obtained by the use of the novel metal complex compound.

Abstract: The present invention discloses an iridium complex containing a (pentaphenyl)phenyl ligand, having the following general equation: in which G is primary ligand, R? and R? are auxiliary ligands. On the other hand, the present invention discloses a compound with a 9-[(pentaphenyl)phenyl]carbazole structure and its polymeric derivative.

Abstract: The invention relates to combination comprising a pharmaceutically acceptable preparation of a compound of formula (I), or a pharmaceutically acceptable salt thereof, and a gallium and its use in diagnosis. The invention also pertains to the use of a compound of formula I or a pharmaceutically acceptable salt thereof, for the preparation of a medicament for the treatment of an excess iron overload in the human or animal body whereby said body is undergoing gallium scintigraphy and whereby the treatment removing said excess of iron is interrupted for a period of 2 to 10 days prior to the gallium scintigraphy and resumed after the gallium scintigraphy readings.

Abstract: The present invention relates to a light emitting transition metal compound represented by the Chemical Formula 1 and Chemical Formula 2 and an organic electroluminescence device including the same. In the above Chemical Formulae 1 and 2, M is Ir, Pt, Rh, Re, Os, or the like, m is 2 or 3 and n is 0 or 1, where the sum of m and n is 3, provided that the sum of m and n is 2 when M is Pt, X and Z are the same or different and may be N or P, and Y is O, S, or Se.

Abstract: The present invention relates to novel transition metal complexes of the formula (I) to a process for preparing these transition metal complexes and to the use of the transition metal complexes as catalysts in metathesis reactions.

Abstract: Amphiphilic Group VIII metathesis catalysts, as can be used in a range of polymerization reactions and other chemical methodologies.

Abstract: Disclosed is a process for producing an ortho-metalated 1:3 complex of iridium with homoligands which is useful as a luminous material for an organic EL device in high yield at high purity in a short time by a simple procedure. An example of the complex is tris(2-phenylpyridine)iridium(III) and this complex can be produced by reacting iridium(III) acetylacetonate with an organic ligand consisting of 2-phenylpyridine in the copresence of an acidic substance, either an organic acid such as tartaric acid or an inorganic acid such as phosphoric acid.

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, phosphate, stibine, arsine, carbonyl compound, carboxyl compound, nitrile, alcohol, ether, thiol or thioether, where R1, R2, R3 and R4 are hydrogen or/and hydrocarbon groups.

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: The present invention relates to a process for converting an isomerically pure compound C1 of the formula I or a mixture M1 comprising C1 into an isomeric compound C2 of the formula I which is different from C1 or a mixture M2 comprising C2, where the variables have the following meanings: n is 2 or 3; M is Pd or Pt, in each case in the formal oxidation state +II, when n is 2; and is Ru, Os, Co, Rh or Ir, in each case in the formal oxidation state +III, when n is 3; Do is a donor atom selected from the group consisting of N, O, S and P; r is 1 when Do is N or P, and is 0 when Do is O or S; Y1, Y2 are each, independently of one another, hydrogen, alkyl, alkenyl, alkynyl, aryl, heteroaryl, alkyloxy, aryloxy, alkylthio, arylthio, alkylcarbonyl, arylcarbonyl, carboxyl, alkyloxycarbonyl, aryloxycarbonyl, hydroxysulfonyl, alkyloxysulfonyl, aryloxysulfonyl, halogen, CN, CHO, NO2 or NO, or Y1 and Y2 together with the carbon atom to which they are bound form a six-membered aromatic ring which may comprise one

Abstract: The invention provides emissive materials and organic light emitting devices using the emissive materials in an emissive layer disposed between and electrically connected to an anode and a cathode. The emissive materials include compounds with the following structure: wherein at least one of R8 to R14 is phenyl or substituted phenyl, and/or at least two of R8 to R14 that are adjacent are part of a fluorenyl group. The emissive materials have enhanced electroluminescent efficiency and improved lifetime when incorporated into light emitting devices.

Abstract: A solid-state composition having the general formula CuxAnLyZ, where: A is CO or an olefin and n=0 or n>0; L is an electrically neutral ligand and O<y<0; and Z is an anion bearing a charge x-. The solid-state composition can advantageously adsorb CO or an olefin in the presence of water.

Abstract: The present invention discloses a phosphorescent tris-chelated transition metal complex comprising i) two identical non-conjugated cyclometalated ligands being incorporated into a coordination sphere thereof with a transition metal, and one ligated chromophore being incorporated into the coordination sphere; or ii) one non-conjugated cyclometalated ligand forming a coordination sphere thereof with a transition metal, and two ligated chromophores being incorporated into the coordination sphere, wherein the metal is iridium, platinum, osmium or ruthenium, and the ligated chromophore possesses a relatively lower energy gap in comparison with that of the non-conjugated cyclometalated ligand, the latter afforded an effective barrier for inhibiting the ligand-to-ligand charge transfer process, so that a subsequent radiative decay from an excited state of these transition complexes will be confined to the single ligated chromophore.

Abstract: The present invention relates to novel metathesis catalysts with an imidazolidine-based ligand and to methods for making and using the same.

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.

Abstract: An electroluminescence device having a layer containing a specific metal coordination compound is provided. The metal coordination compound is represented by formula (1) below: MLmL?n,??(1) wherein M is a metal atom of Ir, Pt, Rh or Pd; L and L? are mutually different bidentate ligands; m is 1, 2 or 3 and n is 0, 1 or 2 with the proviso that m+n is 2 or 3; a partial structure MLm is represented by formula (2) shown below and a partial structure ML?n is represented by formula (3) or (4) shown below: The metal coordination compound of the formula (1) is characterized by having at least one aromatic substituent for at least one of CyN1, CyN2, CyC1 and CyC2. The metal coordination compound having the aromatic substituent is effective in providing high-efficiency luminescence, long-term high luminance, and less deterioration by current passing.

Abstract: An organic light emitting device is provided, having an anode, a cathode, and an emissive layer disposed between the anode and the cathode. The emissive layer may include the following compound: wherein M is a metal having an atomic weight greater than 40; (C—N) is a substituted or unsubstituted cyclometallated ligand, and (C—N) is different from at least one other ligand attached to the metal; each R is independently selected from hydrogen, alkyl, alkenyl, alkynyl, alkylaryl, CN, CF3, CO2R, C(O)R, NR2, NO2, OR, halo, aryl, heteroaryl, substituted aryl, substituted heteroaryl, or a heterocyclic group. The emissive layer may also include a compound having a metal bonded to at least two ligands, in which one ligand has a triplet energy corresponding to a wavelength that is at least 80 nm greater than the wavelength corresponding to the triplet energy of other ligands. Each ligand may be organometallic.

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: Amphiphilic Group VIII metathesis catalysts, as can be used in a range of polymerization reactions and other chemical methodologies.

Abstract: The present invention relates to novel metathesis catalysts with an imidazolidine-based ligand and to methods for making and using the same.

Abstract: There are provided a metal complex which is used as a novel compound for an organic EL device and an organic light-emitting device which uses the metal complex and has an optical output with high efficiency and high luminance. The novel metal complex has, in a partial structure thereof, a non-aromatic ring structure containing at least one olefin and an alkylene group containing at least one F atom, and an unsaturated heterocyclic ring structure containing at least one nitrogen atom. The organic light-emitting device includes a pair of electrodes including an anode and a cathode and at least one layer including an organic compound and interposed between the pair of electrodes, in which the layer including the organic compound contains a metal complex represented by the following structural formula.

Abstract: A light-emitting device is provided which uses an organic compound to emit light with high luminance and extremely high efficiency. The organic compound is composed of a metal complex having monovalent bidentate ligands. The light-emitting device includes a pair of electrodes which are an anode and a cathode, and plural organic compound layers interposed between the electrodes, in which at least one layer of the organic compound layers contains a metal complex represented by the following structural formula. The light-emitting device is an organic electroluminescent device using the light-emitting device in which the layer including the organic compound is a light-emitting layer.

Abstract: Provided are an organometallic complex providing highly efficient phosphorescence and an organic electroluminescence device using the organometallic complex represented by Formula 1: MLmL?n where M is Ir, Os, Pt, Pb, Re, Ru or Pd, L and L? are different bidentate ligands, m is 1, 2 or 3, and n is 3?m. The organometallic complex can be used to form an organic layer of the organic electroluminescence device, efficiently emits light of a wavelength corresponding to red light, and has high brightness and low operating voltage.

Abstract: An organic electroluminescent element material represented by Formula (1), Formula (1): wherein Z is a heterocylcic ring comprising a substituent having a steric parameter value (Es) of ?0.5 or less at the third atom of the ring counted from a nitrogen atom attached to Z, the nitrogen atom being counted as the first atom; and other symbols in Formula (1) are described in the specification.

Abstract: An organic electroluminescent element comprising a metal complex represented by Formula (1), wherein Z is a hydrocarbon ring or a heterocyclic ring, provided that each of the hydrocarbon ring and the heterocyclic ring has a substituent having a steric parameter (Es) of ?0.5 or less at the third atom of the ring counted from a nitrogen atom attached to Z, the nitrogen atom being counted as the first atom, X, Y, A, B, X1-L1-X2, M1, m1 and m2 are described in the specification.

Abstract: The present invention relates to catalysts of transition metal complexes of N-heterocyclic carbenes, their methods of preparation and their use in chemical synthesis. The synthesis, ease-of-use, and activity of the compounds of the present invention are substantial improvements over in situ catalyst generation. Further, the transition metal complexes of N-heterocyclic carbenes of the present invention may be used as precatalysts in metal-catalyzed cross-coupling reactions.

Abstract: Phosphorescent iridium complexes having Formula I or Formula II: wherein X is chosen from a monoanionic bidentate ligand; Z is chosen from an atomic group wherein Z together with the buta-1,3-diene to which Z is attached form an aryl group or heteroaryl group; R, R1, and R2 are independently chosen from a hydrogen atom or a substituent; m is an integer from 0 to 4; and n is an integer from 0 to the maximum number of possible substituents on Z, are disclosed. Light emitting devices using the phosphorescent iridium complexes are also disclosed.

Abstract: Disclosed is an electroluminescent device comprising a light-emitting layer including a light emitting material that contains an organometallic complex comprising (1) a metal selected from the group consisting of Ir, Rh, Os, Pt, and Pd and (2) a diazole group ligand wherein the ligand has a fused aromatic ring group including a nitrogen of the diazole as a bridgehead nitrogen. The device provides useful light emission.

Abstract: A polymerization catalyst for the polymerization and copolymerization of olefin monomers and the copolymerization of olefin monomers with other monomers selected from, for example, norbornenes and styrenes are disclosed. The polymerization catalysts disclosed contain a metal center selected from Ti, Zr, Hf, Ni and Pd with at least one chelating ligand.

Abstract: A new class of compounds is disclosed that in preferred embodiments relate to Ru-based catalysts suitable for use in olefin metathesis reactions. Such compounds demonstrate high rates of catalytic turnover in comparison with other Ru catalysts known in the art. Moreover, the catalysts are highly stable, and readily suited to attachment to a solid support via the anionic ligands. The invention also pertains to methods of producing the catalysts, and their use in catalyzing olefin metathesis reactions.

Abstract: The present invention is directed to a compound of formula (I), racemic-diastereomeric mixtures thereof, optical isomers thereof, prodrugs thereof, isotopes thereof or pharmaceutically-acceptable salts of said compound, isomers, prodrugs and isotopes, wherein the variables are defined herein. The compounds of this invention are useful as inhibitors of serine/threonine and tyrosine kinases. In particular, compounds of this invention are useful as inhibitors of tyrosine kinases that are important in hyperproliferative diseases, especially in cancer and in the process of angiogenesis.

Abstract: A polymerization catalyst for the polymerization and copolymerization of olefin monomers and the copolymerization of olefin monomers with other monomers selected from, for example, norbornenes and styrenes are disclosed. The polymerization catalysts disclosed contain a metal center selected from Ti, Zr, Hf, Ni and Pd with at least one chelating ligand.

Abstract: Complexes of organic ligands with a metal ion exhibit unique conformation and spectroscopic properties upon changes in oxidation state of the metal ion. The metal is a redox-active metal ion and may possess additional ligands bonded to it. The organic ligand has three “arms” that are linked together at a central atom; each arm contains atoms that may also coordinate to the metal ion. At least two of the arms possess chromophoric properties. At least one arm contains two different groups that may coordinate to the metal ion. In one oxidation state, a first atom binds to the metal. In a second oxidation state, a second atom binds to the metal. This change in coordination of the metal ion results in a rotation of one of the arms, which changes the orientation of another group, which inverses the orientation of the two chromophoric species with respect to one another.

Abstract: The present invention provides a novel ferrocene compound; a reagent containing the compound; a high-sensitivity method of measuring a vitamin D compound using the reagent; etc. Specifically, a ferrocene compound represented by the following formula (1): is reacted with a vitamin D compound and the combined compound of these compounds is subjected to LC/ESI-MS/MS. Thus, the VD compound can be measured with higher sensitivity than in conventional techniques. The ferrocene compound of the present invention is extremely useful as a derivatization agent when a VD compound is measured by LC/ESI-MS/MS. The obtained compound wherein the ferrocene compound and the VD compound have been combined with each other, is useful as, e.g., a labeled compound, when the VD compound is measured by LC/ESI-MS/MS.

Abstract: Organic light emitting devices are described wherein the emissive layer comprises a host material containing an emissive molecule, which molecule is adapted to luminesce when a voltage is applied across the heterostructure, and the emissive molecule is selected from the group of phosphorescent organometallic complexes, including cyclometallated platinum, iridium and osmium complexes. The organic light emitting devices optionally contain an exciton blocking layer. Furthermore, improved electroluminescent efficiency in organic light emitting devices is obtained with an emitter layer comprising organometallic complexes of transition metals of formula L2MX, wherein L and X are distinct bidentate ligands. Compounds of this formula can be synthesized more facilely than in previous approaches and synthetic options allow insertion of fluorescent molecules into a phosphorescent complex, ligands to fine tune the color of emission, and ligands to trap carriers.

Abstract: An electroluminescence device having a layer containing a specific metal coordination compound is provided. The metal coordination compound is represented by formula (1) below: MLmL?n??(1), wherein M is a metal atom of Ir, Pt, Rh or Pd; L and L? are mutually different bidentate ligands; m is 1, 2 or 3 and n is 0, 1 or 2 with the proviso that m+n is 2 or 3; a partial structure MLm is represented by formula (2) shown below and a partial structure ML?n is represented by formula (3) or (4) shown below: The metal coordination compound of the formula (1) is characterized by having at least one aromatic substituent for at least one of CyN1, CyN2, CyC1 and CyC2. The metal coordination compound having the aromatic substituent is effective in providing high-efficiency luminescence, long-term high luminance, and less deterioration by current passing.

Abstract: Novel bisamidate phosphonate prodrugs of FBPase inhibitors of the Formula IA: and their use in the treatment of diabetes and other conditions associated with elevated blood glucose.

Abstract: A method for synthesizing cyclic polymers using transition metal alkylidene complexes as reaction catalysts is provided, wherein the complexes contain a cyclic group. Polymerization is carried out on the catalyst, using cyclic olefin monomers that undergo ring insertion polymerization, and no linear intermediates are generated. Following completion of polymerization, the cyclic polymer detaches from the complex via an intramolecular chain transfer reaction and the catalytic complex is regenerated. The invention also provides novel transition metal alkylidene complexes useful as catalysts in the aforementioned process, as well as novel cyclic hydrocarbons.

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.

Abstract: The present invention relates to chiral metal catalysts for stereoselective olefin metathesis reactions, which are recyclable and reusable in such metathesis reactions. The chiral metal-based metathesis catalysts of the invention comprise multidentate optically active or racemic chiral ligands that enable their use in asymmetric synthetic processes, such as for example, in ring-opening and ring-closing metathesis reactions (ROM and RCM, respectively) of alkenes. The catalysts of the invention are organometallic complexes of multivalent metals comprising one or more chiral bidentate ligands that exhibit superior reactivity and stereoselectivity properties. The present invention also provides methods of making such catalysts and methods for utilizing them in catalyzing stereoselective olefin metathesis reactions to provide asymmetric products in relatively high enantiomeric or stereoisomeric excess.

Abstract: New ruthenium dimeric complexes with high antimetastatic and antitumour activity and remarkable chemical stability are described.

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: A method is provided for synthesizing a polymer in a controlled fashion using a ring-opening metathesis polymerization (ROMP) reaction, wherein polymerization is carried out using a catalytically effective amount of an olefin metathesis catalyst and a bridged bicyclic or polycyclic olefin monomer that contains at least two heteroatoms directly or indirectly linked to each other. Preferred catalysts are Group 8 transition metal complexes, particularly complexes of Ru and Os. Such complexes include the ruthenium bisphosphine complex (PCy3)2(Cl)2Ru?CHPh (1) and the ruthenium carbene complex (IMesH2)(PCy3)(Cl)2Ru?CHPh (2). The invention also provides novel regioregular polymers synthesized using the aforementioned methodology, wherein the polymers may be saturated, unsaturated, protected, and/or telechelic. An exemplary polymer is poly((vinyl alcohol)2-alt-methylene)(MVOH).

Abstract: The present invention provides a process for preparing a metal carbene complex of formula (I): wherein M is a transition metal atom selected from the group consisting of ruthenium, rhodium, iron, cobalt, osmium and iridium; L denotes neutral donor ligands ligated to said metal, such groups being the same or different; X is an anionic ligand; R1 and R2 are each independently selected from the group consisting of hydrogen, substituted or unsubstituted C1-C20 alkyl, substituted or unsubstituted C2-C20 alkenyl, substituted or unsubstituted cycloalkyl, substituted or unsubstituted heterocycloalkyl, substituted or unsubstituted aryl, substituted or unsubstituted heteroaryl, substituted or unsubstituted vinyl, a is 2 or 3 and b is 1 or 2, such process comprising reacting a sulfur ylide of the formula Ar2S?CR1R2 or its precursor with an appropriate metal complex comprising a transition metal atom selected from the group consisting of ruthenium, rhodium, iron, cobalt, osmium and iridium, said metal complex being also

Abstract: An organic light emitting device is provided, having an anode, a cathode, and an emissive layer disposed between the anode and the cathode.

Abstract: Complexes of organic ligands with a metal ion exhibit unique conformation and spectroscopic properties upon changes in oxidation state of the metal ion. The metal is a redox-active metal ion and may possess additional ligands bonded to it. The organic ligand has three “arms” that are linked together at a central atom; each arm contains atoms that may also coordinate to the metal ion. At least two of the arms possess chromophoric properties. At least one arm contains two different groups that may coordinate to the metal ion. In one oxidation state, a first atom binds to the metal. In a second oxidation state, a second atom binds to the metal. This change in coordination of the metal ion results in a rotation of one of the arms, which changes the orientation of another group, which inverses the orientation of the two chromophoric species with respect to one another.

Abstract: A catalytic method is provided for a ring-opening cross-metathesis reaction between a cycloolefinic substrate and a second olefinic reactant, wherein the catalyst used is a transition metal alkylidene complex substituted with an N-heterocyclic carbene ligand. The substrates are selected so that the rate of the cross-metathesis reaction of the second olefinic reactant, kCM, is greater than or equal to the rate of the ring-opening metathesis reaction, kRO. In this way, the predominant ROCM product is a monomer, dimer, and/or oligomer, but not a polymer. The invention additionally provides for selective production of an end-differentiated olefinic product, using trisubstituted cycloolefins as substrates and/or a subsequent cross-metathesis reaction following an initial ROCM step. The cycloolefinic substrates include low-strain olefins such as cyclohexene as well as higher strain olefins such as cyclooctene.