The chemistry of mononuclear rhodium complexes bearing phosphane ligands is dominated by compounds with the transition metal center in the+ I or+ 111 oxidation state.['] Although [(Me, P), Co]-has been well studied,['] corresponding rhodium compounds have so far been restricted to cases where highly x-acidic ligands are present, for example K [(F, P), Rh],[31 Na [(Ph, P),(CO), Rh], r41 and Li [(triphos)(CO) Rh](triphos={2-[(diphenylphosphano) ...
