Patent ID: 8404879

Claim:
A ruthenium complex represented by the following formula (1): wherein * represents an asymmetric carbon atom; R 1 represents an alkyl group having 1 to 10 carbon atoms; an alkanesulfonyl group having 1 to 10 carbon atoms which may be substituted with a halogen atom; an arenesulfonyl group which may be substituted with an alkyl group having 1 to 10 carbon atoms, a halogenated alkyl group having 1 to 10 carbon atoms or a halogen atom; an alkoxycarbonyl group having 2 to 11 carbon atoms; or a benzoyl group which may be substituted with an alkyl group having 1 to 10 carbon atoms; R 2 represents a hydrogen atom or an alkyl group having 1 to 10 carbon atoms; X represents a trifluoromethanesulfonyloxy group, a p-toluenesulfonyloxy group, a methanesulfonyloxy group, a benzenesulfonyloxy group, a hydrogen atom, or a halogen atom; m and n each represent 0 or 1, in addition m+n is 0 or 2; R 3 and R 4 each independently represent an alkyl group having 1 to 10 carbon atoms; a phenyl group which may be substituted with an alkyl group having 1 to 10 carbon atoms, an alkoxy group having 1 to 10 carbon atoms or a halogen atom; or a cycloalkyl group having 3 to 8 carbon atoms, or R 3 and R 4 may be joined to form a ring; and L represents an aromatic compound represented by the following formula (2): wherein R 5 , R 6 , R 7 , R 8 , R 9 and R 10 each independently represent an alkyl group having 1 to 10 carbon atoms; a cycloalkyl group having 3 to 6 carbon atoms; or a phenyl group which may be substituted with an alkyl group having 1 to 10 carbon atoms or an alkoxy group having 1 to 10 carbon atoms; R 11 and R 12 each independently represent a hydrogen atom, an alkyl group having 1 to 10 carbon atoms, or an alkoxy group having 1 to 10 carbon atoms; and n1, n2 and n3 each represent 0 or 1.