ELECTRONIC-STRUCTURE AND REACTIVITY OF X2CO2(CO)6(X2=RC2R',P2,AS2) AND RXR'6-XC6CO2(CO)4 RADICAL-ANIONS

Radical anions of the dinuclear species X2Co2(CO)6 (X2 P2, As2, RC2R′) and Rx,R′6-xC6CO2(CO)4 have been characterized by electrochemical and ESR methods. The frozen solution spectra could be analysed in unusual detail to evaluate the g and hyperfine tensor components and these data allow definitive statements to be made about the directional nature and orbital character of the unpaired electron density. Most of the RC2R′Co2(CO)6- radical anions decay to monomeric paramagnetic species. © 1979.