Patent ID: 8212037

Claim:
A ruthenium complex of general formula (1): RuXYAB (1) wherein X and Y may be mutually identical or different and denote hydrogen or an anion group, A is a compound of general formula (2): wherein R 1 and R 2 may be mutually identical or different and are an alkyl group having a carbon number of 1-20 or a cyclic hydrocarbon group which may have one or more substituents; R 3 and R 4 may be mutually identical or different and are hydrogen or a hydrocarbon group having a carbon number of 1-3; R 5 , R 6 , R 7 and R 8 may be mutually identical or different and are a phenyl group substituted with 1 to 5 methyl, ethyl, propyl, or t-butyl groups, B is a compound of general formula (3) or (4): wherein in general formula (3), R 9 denotes a hydrogen atom, an alkyl group having a carbon number of 1-20 or a cyclic hydrocarbon group which may have one or more substituents; R 10 and R 11 may be mutually identical or different and denote a hydrogen atom, an alkyl group having a carbon number of 1-20 or a cyclic hydrocarbon group which may have one or more substituents, R 10 and R 11 may be mutually bonded to form a saturated or unsaturated hydrocarbon group which may have one or more substituents of alkyl, alkenyl, cycloalkyl, aryl, alkoxy, ester, acyloxy, halogen atoms, nitro, or cyano; R 12 , R 13 , R 14 and R 15 may be mutually identical or different and denote a hydrogen atom, an alkyl group having a carbon number of 1-20 or a cyclic hydrocarbon group which may have one or more substituents, R 12 and R 13 , R 13 and R 14 , or R 14 and R 15 may be mutually bonded to form a saturated or unsaturated hydrocarbon group, or to form a saturated or unsaturated hydrocarbon group containing N; wherein in general formula (4), at least one of R 16 , R 17 and R 18 is a hydrogen atom, R 16 and R 17 may be mutually identical or different and denote a hydrogen atom, an alkyl group having a carbon number of 1-20 or a cyclic hydrocarbon group which may have one or more substituents, or R 16 and R 17 may be mutually bonded to form a ring containing N, R 18 denotes a hydrogen atom, an alkyl group having a carbon number of 1-20 or a cyclic hydrocarbon group which may have one or more substituents; R 19 and R 20 may be mutually identical or different and denote a hydrogen atom, an alkyl group having a carbon number of 1-20 or a cyclic hydrocarbon group which may have one or more substituents, R 19 and R 20 may be mutually bonded to form a saturated or unsaturated hydrocarbon group which may have one or more substituents of alkyl, alkenyl, cycloalkyl, aryl, alkoxy, ester, acyloxy, halogen atoms, nitro, or cyano; R 21 may be mutually identical or different and independently denote a hydrogen atom, an alkyl group having a carbon number of 1-20 or a cyclic hydrocarbon group which may have one or more substituents, and adjacent R 21 may be mutually bonded to form a saturated or unsaturated hydrocarbon group; m denotes an integer of 1-10; n denotes an integer of 1-3, and wherein each ligand of the ruthenium may be arbitrarily coordinated.