Tris(triphenylphosphine)rhodium carbonyl hydride Tags: Chemical Compound, Chemical Substance.Tris(triphenylphosphine)rhodium carbonyl hydride is an organorhodium compound with the formula HRh(CO)(PPh3)3 (Ph = C6H5) or more correctly [Rh(CO)H(PPh3)3] . It is a yellow benzene-soluble solid which is used industrially for hydroformylation. thumbnail Learn more... Loading...