Patent ID: 8455671

Claim:
A ruthenium complex with a chiral ferrocenyldiphosphine ligand for homogeneous catalysis corresponding to the general formula where Ru is in the oxidation state +II, n is an integer equal to or greater than 3, L D is a neutral ligand, Z is π-bonded organic ligand, E − is an anion selected from the group consisting of HSO 4 − , CF 3 SO 3 − , ClO 4 − , BF 4 − , B(aryl) 4 − , SbF 6 − and PF 6 − and L z is an anionic ligand and the ferrocenyldiphosphine ligand P(1)-P(2) has bidentate P—P coordination, and together with the ruthenium forms an at least eight-membered ring.