in water Kinetics; byproducts: hydroxybipyridyl-type prod.; other Radiation; pulse or .gamma-ray radiolysis at ph 4.5, 6.0;

in acetonitrile Kinetics; byproducts: Re2(CO)9(MeCN); Irradiation (UV/VIS); Ar-atmosphere; Nd:Yag laser pulses (351 and 355 nm); not isolated, reaction followed by UV/VIS spectroscopy;

Triton X-100 or cetyltrimethylammonium nitrate in methanol; water Kinetics; investigation of equilibrium- and rate constants of the electron transfer react. in micellar solns. (Triton X-100 (C18H17Ph(OC2H4)9.5OH) or cetyltrimetylammonium nitrate) at 20°C (ionic strength 0.02mol/dm*3,supporting electrolyte NaNO3);; not isolated, monitoring of react. by following the absorbance of the ferrocenium-ion at 617nm;;