Preparation and spectral studies of a series of rhodium(III)-acetonitrile complexes

Article abstract of DOI:10.1021/ic50075a014

A series of rhodium(III)-acetonitrile complexes of the general formula RhCl_m(CH₃CN)_n^3-m have been prepared and characterized by their visible, infrared (4000-70 cm^-1), and proton nmr spectra. The preparation of the trans-RhCl₄(CH₃CN)₂^- is reported for the first time. The configurations of the two geometrical isomers of the complex RhCl₃(CH₃CN)₃ are elucidated on the basis of their proton nmr spectra. The visible and far-infrared spectra of these rhodium(III) acetonitrile complexes are quite similar to those exhibited by the analogous rhodium(III) pyridine complexes, thus indicating the considerable strength of acetonitrile as a ligand for second-row transition metals.