Silver(I) complexes of selenourea (13C and 15N labeled); characterization by 13C,15N and 107Ag NMR

Silver(I) complexes of selenourea (Seu), Ag(Seu)NO3 and Ag(Seu)2NO3 have been prepared and characterized by elemental analysis, IR and NMR (1H,13C,15N and 107Ag) spectroscopy. An upfield shift in 13C NMR and downfield shifts in 1H and 15N NMR for selenourea resonances are consistent with the selenium coordination to Ag(I). In 107Ag NMR, the AgNO3 signal is deshielded by more than 600 ppm on its coordination to selenourea.