Patent ID: 6783873
Filing Date: 2004-08-31
Classification: C07F,C09K,H01L,Y10S

Abstract:
A metal coordination compound represented by the following formula (1): wherein M1 and M2 independently denote a metal atom selected from the group consisting of Ir, Pt, Rh, Pd, Ru and Os; P is a quadridentate ligand connected to M1 and M2; Q1 is a bidentate ligand connected to M1; Q2 is a bidentate ligand connected to M2; and n is 1 or 2,wherein the bidentate ligand Q1 is represented by formula (2) shown below and the bidentate lingand Q2 is represented by formula (3) shown below: wherein CyN1 and CyN2 are each a cyclic group capable of having a substituent, including a nitrogen atom and bonded to the metal atom M1 or M2 via the nitrogen atom: CyC1 and CyC2 are each a cyclic group capable of having a substituent, including a carbon atom and bonded to the metal atom M1 or M2 via the carbon atom, with a proviso that the cyclic group CyN1 and the cyclic group CyC1 are bonded to each other via a covalent bond and the cyclic group CyN2 and the cyclic group CyC2 are bonded to each other via a covalent bond, and wherein the optional substituent of the cyclic groups is selected from the group consisting of: a halogen atom; a cyano group; a nitro group; a trialkylsilyl group of which the alkyl groups are independently a linear or branched alkyl group having 1 to 8 carbon atoms; a linear or branched alkyl group having 1 to 20 carbon atoms of which the alkyl group can include one or non-neighboring two or more methylene groups that can be replaced with â€”Oâ€”, â€”Sâ€”, â€”C(O)â€”, â€”C(O)â€”Oâ€”, â€”Oâ€”C(O)â€”, â€”CH&boxH;CHâ€” or â€”Câ‰¡Câ€”, and the alkyl group can include a hydrogen atom that can be optionally replaced with a fluorine atom; and an aromatic group capable of having a substituent, which is a halogen atom, a cyano atom, a nitro atom, a linear or branched alkyl group having 1 to 20 carbon atoms of which the alkyl group can include one or non-neighboring two or more methylene groups that can be replaced with â€”Oâ€”, â€”Sâ€”, â€”C(O)â€”, â€”C(O)â€”Oâ€”, â€”Oâ€”C(O)â€”, â€”CH&boxH;CHâ€” or â€”Câ‰¡Câ€”, and the alkyl group can include a hydrogen atom that can be optionally replaced with a fluorine atom.