ELECTRONIC-STRUCTURE OF (DIMETHYLGLYOXIMATO)TRIPHENYLPHOSPHINERHODIUM(III) COMPLEXES

Three metal complexes of general composition [Rh(PPh(3))(dmgH)(2)R] (d mgH(-) =monoanion of dimethylglyoxime, R(-)=CH3-C-2(-), CH2=CH- and C6 H5C drop C-) have been investigated by the quasirelativistic INDO/1 me thod. Geometric models of the complexes were taken from X-ray structur e analysis. The bonding situation has been analyzed in terms of bond-m ultiplicity indices and bicentric increments to the total energy. A de creasing trans influence of the organo group evidenced from the X-ray data was not confirmed by the corresponding stabilization of the Rh-P bond.