Multinuclear NMR (1H, 13C, 15N and 107Ag) studies of the silver cyanide complexes of thiourea and substituted thioureas

The NMR (1H, 13C, 15N and 107Ag) studies of the silver(I) cyanide (AgCN) complexes of thiourea (Tu), N,N′-dimethylthiourea (Dmtu) and tetramethylthiourea (Tmtu) were carried out in dimethyl sulfoxide. An upfield shift in 13C NMR and downfield shifts in 1H, 15N and 107Ag NMR are consistent with the sulfur coordination to silver(I). The NMR data shows that CS–AgCN complexes are stable in solution and do not undergo disproportionation reactions.