Cyclic voltammetry was used in the title study. Preliminary work on the Co complexes, recently synthesized by a known method, indicated that reversible 3-step voltammograms (a 1-electron oxidn. and 2 one-electron redns.) can be obtained at the Pt electrode for Co2P2+ and Co2As2+ (where the complex consists of two 1,1,1-tris(diphenylphosphinomethyl)ethane ligands and a bridged triphosphorus or the corresponding As analogs) in MeCN using Et4NBF4 as supporting electrolyte. A similar study could not be carried out for Ni2P2+ and Ni2As2+ owing to their instability in MeCN. This was also found in dimethyl sulfoxide and DMF. Two reversible 1-electron steps, assocd. with the +2/+3 and +2/+1 redox changes were detected voltammetrically for the Ni complexes. The electrode potential values assocd. with the redox steps occurring in Me2CO are also reported.
Electrochemical behavior of the triple-decker sandwich cobalt and nickel complexes with cyclo-triphosphorus and cyclo-triarsenic
FABBRIZZI, LUIGI;
1979-01-01
Abstract
Cyclic voltammetry was used in the title study. Preliminary work on the Co complexes, recently synthesized by a known method, indicated that reversible 3-step voltammograms (a 1-electron oxidn. and 2 one-electron redns.) can be obtained at the Pt electrode for Co2P2+ and Co2As2+ (where the complex consists of two 1,1,1-tris(diphenylphosphinomethyl)ethane ligands and a bridged triphosphorus or the corresponding As analogs) in MeCN using Et4NBF4 as supporting electrolyte. A similar study could not be carried out for Ni2P2+ and Ni2As2+ owing to their instability in MeCN. This was also found in dimethyl sulfoxide and DMF. Two reversible 1-electron steps, assocd. with the +2/+3 and +2/+1 redox changes were detected voltammetrically for the Ni complexes. The electrode potential values assocd. with the redox steps occurring in Me2CO are also reported.I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.
