in tetrahydrofuran Irradiation (UV/VIS); soln. of complex was irradiated for 25 min; the color changed from green to orange; the products were not isolated, identified by IR spectra;

MeOH in methanol Irradiation (UV/VIS); soln. of complex was irradiated for 25 min; the color changed from green to orange; then the mixt. was warmed to 60°C for 30 min, the solvent was removed, the residue was extd. with CHCl3, evapd. and sublimedon a cold finger;