Silver(I) thiosemicarbazone complex [Ag(catsc)(PPh3)(2)]NO3: Synthesis, characterization, crystal structure, and antibacterial study

We report the synthesis, characterization and crystal structure of a new mononuclear silver(I) complex, [Ag(catsc)(PPh3)(2)]NO3 (catsc = 3-phenylpropenalthiosemicarbazone). The complex was prepared by the reaction of catsc and AgNO3 in the presence of PPh3 and characterized by elemental analysis (CHN), FFIR, H-1, C-13 and P-31 NMR spectroscopy, and single-crystal X-ray diffraction. In the complex, catsc acts as a bidentate NS ligand while the nitrate is a counter ion. The silver ion is coordinated by a bidentate ligand and two PPh3 in the form of a distorted tetrahedron. In addition, the antibacterial effect of the complex was studied against the standard strains of two gram-positive (Staphylococcus aureus and Enterococcus faecalis) and two gram-negative (Escherichia coli and Pseudomonas aeruginosa) bacteria. (C) 2016 Academie des sciences. Published by Elsevier Masson SAS. All rights reserved.