Abstract
Iron group metallocenes Cp 2M (Cp = C 5H 5, M = Fe, Ru, Os) and chlorocarbon solvents RCl (CCl 4, CHCl 3, CH 2Cl 2, C 2Cl 4) form electron donor-acceptor (EDA) complexes. During irradiation of EDA complexes in the presence of spin traps, nitroxide radical adducts of chlorocarbon radicals ·R have been detected, and on this basis a mechanism for the photolysis of EDA complexes is suggested. The ability of metallocenes, particularly Cp 2Fe, to trap transient radicals ·R in electron transfer processes has been demonstrated.
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