An unprecedented kappa(2)N,H bonding mode for hydridotris(pyrazolyl)borato
(Tp(Me2,4-Cl)) ligand is observed in [Rh(CO)(PMePh2)(2)(Tp(Me2,4-Cl))]; the
complex, which features two dangling pyrazole rings and a B-(mu-H)-Rh agos
tic bond, is highly fluxional in solution.