An E.S.R. study of the reaction of cobalt phthalocyanines with ammonia and dioxygen

摘要: Abstract The interaction of cobalt phthalocyanine with ammonia and oxygen in solutions DMF was studied the products investigated by e.s.r. Both mono- bis-NH 3 adducts were prepared characterized their signals showing appropriate 14 N superhyperfine (s.h.f.) splitting. Admittance air results formation monomeric 1:1 O 2 adduct, identified its characteristic signal. thermal stability this adduct is surprisingly high, presumably because stabilizing effect highly polar solvent (DMF) combined strong Lewis base character axial coordinated (NH ). An irreversible loss signal correlated binuclear as found optical spectroscopy; rate reaction shown to depend on concentration. During process format a narrow g ≈ observed, assigned oxidation ring cation radical.