Patent ID: 6821646
Filing Date: 2004-11-23
Classification: C07F,C09K,H01L,H05B,Y10S

Abstract:
A luminescence device, comprising an organic compound layer comprising at least one species of a metal coordination compound according to any one of formulas (1) or (4): wherein one of X1 and X2 of the compound of said formula (4) is a nitrogen atom and one of X1 and X2 is a carbon atom, and wherein a hydrogen atom in ligands of said formulas (1) and (4) may optionally be replaced with a substituent selected from the group consisting of a halogen atom; a trialkylsilyl group containing three linear or branched alkyl groups each independently having 1-8 carbon atoms; and a linear or branched alkyl group having 1-20 carbon atoms, which can include at least one methylene group, or at least two non-neighboring methylene groups, which 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 optionally including a hydrogen atom, which can be replaced with a fluorine atom, with the proviso that a ligand of the compound of said formula (1) has at least one of said linear or branched alkyl groups having 1-20 carbon atoms having at least one hydrogen atom replaced with a fluorine atom.