BIDENTATE AMINE N-OXIDES AND PHOSPHINE OXIDES AS LIGANDS IN RHODIUM(I) CHEMISTRY

Article abstract of DOI:10.1016/S0022-328X(00)85145-1

Cationic rhodium(I) complexes of the general formula ClO4 (L2 = bipyO2, phenO, dpeO2 and dpmO2) are prepared from the solvated species ⁺ and the appropriate ligand.Complexes of the type (ClO4)n (CNPyO = 4-cyano and 2-cyanopyridine N-oxide) are obtained similarly.Reaction of 2 with the potassium salt of 2-picolinic acid N-oxide leads to the neutral complex Rh(COOPyO)(COD).The mononuclear rhodium diolefinic compounds react with carbon monoxide to give complexes of the type ClO4 and Rh(COOPyO)(CO)2, which on treatment with triphenylphosphine yield monocarbonyl derivatives.The catalytic activities of the diolefin complexes and related derivatives in hydrogen-transfer catalytic reactions have been studied.