Patent ID: 8471048

Claim:
A ruthenium carbonyl complex that is represented by Formula (1): RuXY(CO)(L) (1) wherein X and Y, which may be the same or different from each other, represent an anionic ligand and L represents a tridentate aminodiphosphine ligand represented by Formula (2): wherein R 1 , R 2 , R 3 , and R 4 , which may be the same or different from each other, represent a hydrogen atom, an alkyl group, a cycloalkyl group, an aryl group, an aralkyl group, an alkyloxy group, a cycloalkyloxy group, an aryloxy group, an aralkyloxy group, a heterocyclic group, or a substituted amino group, and R 1 and R 2 or R 3 and R 4 may bind to each other to form a ring with an adjacent phosphorus atom, the alkyl group, cycloalkyl group, aryl group, aralkyl group, alkyloxy group, cycloalkyloxy group, aryloxy group, aralkyloxy group, heterocyclic group, and substituted amino group may have a substituent group, and Q 1 and Q 2 , which may be the same or different from each other, represent a divalent alkylene group which may have a substituent group, a divalent cycloalkylene group which may have a substituent group, or a divalent aralkylene group which may have a substituent group.