in acetonitrile; benzene byproducts: AgCl, NaBF4; stirring (15 min), sepn. of AgCl (filtration off), addn. of ligand, stirring (overnight), evapn. of soln. to dryness, extn. (benzene), sepn. of NaBF4 (filtration off); removal of solvent, recrystn. (CH2Cl2/CH3CN);

in acetone equivalent amount of org. compd. added to soln. of Rh complex in acetone;