Polyvinyl alcohol (PVA), phosphatidylcholine (PC), and organic phosphi
nes are cocatalysts of the nitrogen reduction by sodium amalgam in whi
ch polynuclear molybdenum complexes serve as catalysts. PVA and PC are
adsorbed on the amalgam surface and involve catalytic complexes, thus
facilitating their contact with a reducing agent. Phosphines retard t
he decay of the catalytic centers in the course of the reaction, thus
increasing the yield of the reduction products.