Patent ID: 8188302

Claim:
A composition, comprising: a rhodium complex comprising a central rhodium atom, at least one ancillary ligand selected from the group consisting of cyclooctadiene, cyclooctene, acetonitrile and acetone, and a counterion selected from the group consisting of Cl − , Br − , AcO − , TfO − , CF 3 CO 2 − , BF 4 − , ClO 4 − , ReO 4 − , AsF 6 − and SbF 6 − , and an organic ligand, selected from the group consisting of 4,5-(bis[bis-diethylamido]-phosphonito-9,9-dimethylxanthene and 2-dicyclohexyl-phosphino-2′-(N,N-dimethylamino)-biphenyl.