Thermodynamic studies of [H(2)Rh(diphosphine)(2)](+) and [HRh(diphosphine)(2)(CH(3)CN)](2+) complexes in acetonitrile.

Thermodynamic studies of [H(2)Rh(diphosphine)(2)](+) and [HRh(diphosphine)(2)(CH(3)CN)](2+) complexes in acetonitrile.