Abstract: The controlled-potential electrolysis of C02-saturated CH3CN containing [Fe4S,(SPh), l2-, NOT, PhCOCH3, and a dehydration agent at-1.25 V vs SCE catalytically produced not only N2 accompanied by a small amount of N20 but also PhCOCH2COO-with the mole ratio 1: 7. N20;-as a precursor of N20 was confirmed in the reaction mixture. The reduction of NO; catalyzed by the reduced species of [Fe4S4 (SPh), l2-, therefore, ...