%0 Journal Article
%T Preparation, spectral characterization and antibacterial studies of silver(I) complexes of 2-mercaptopyridine and thiomalate
%A Muhammad Hanif
%A Aisha Saddiqa
%A Shahida Hasnain
%A Saeed Ahmad
%A Ghulam Rabbani
%A Anvarhusein A. Isab
%J Spectroscopy: An International Journal
%D 2008
%I Hindawi Publishing Corporation
%R 10.3233/spe-2008-0328
%X Silver(I) complexes of 2-mercaptopyridine (Mpy), [Ag(Mpy)]NO3 and [Ag(Mpy)2]NO3, and the first mixed-ligand complex having a thione and thiolate coordinated to Ag(I), [Mpy–Ag–Tm] (Tm═thiomalate) have been prepared and characterized by IR and NMR spectroscopy. The 1H and 13C NMR spectra show the presence of both ligands in the mixed-ligand complex, [Mpy–Ag–Tm]. An upfield shift is observed in the >C═S resonance of Mpy and C═O resonances of thiomalate in 13C NMR, while the other resonances are shifted downfield. The complexes showed relatively high antibacterial activity (inhibition zone of 6–11 mm) against a gram +ve bacterium, Bacillus subtilis, as compared to that (inhibition zone of 4 mm) against a gram –ve bacterium, Escherichia coli.
%U http://www.hindawi.com/journals/spectroscopy/2008/170213/