Patent ID: 7973188

Claim:
An organometallic ruthenium compound represented by the formula wherein R 1 , R 2 , R 3 , R 4 , R 5 and R 6 are the same or different and each represents hydrogen, a halogen atom, an acyl group having from 1 to about 12 carbon atoms, an alkoxy group having from 1 to about 12 carbon atoms, an alkoxycarbonyl group having from 1 to about 12 carbon atoms, an alkyl group having from 1 to about 12 carbon atoms, an amine group having from 1 to about 12 carbon atoms or a silyl group having from 0 to about 12 carbon atoms, and L 1 and L 2 are the same or different and each represents N 2 or a substituted or unsubstituted heteroatom-containing group.