Long-distance intervalence electron transfer

摘要

Long-distance intervalence electron transfer can be mon- itored by the quantitative study of intervalence transitions in series of binuclear mixed-valence metal complexes, with metal-metal distances reaching 25 A. this allows the determination of the electronic coupling V_ab, and its rate of decay with distance. Comparisons are made between several series of compounds, and also with organic mixed- valence systems. The decay is exponential with a coefficient varying a relatively narrow range (0.08 to 0.12 a~-1). Applications for molecular switching are discussed.