Synthesis, structures, and ESI-mass studies of silver(I) derivatives of imidazolidine-2-thiones: Antimicrobial potential and biosafety evaluation.

The basic objective of this investigation is to explore potential metallo-organic antimicrobial agents based on silver-heterocyclic-2-thiones. In this respect, a series of silver(I) halide complexes with imidazolidine-2-thiones (L-NR, R=H, Me, Et, Pr, Bu, Ph), namely, mononuclear [AgX(L-NR)(PPh)] (X, R: Cl, Bu, 1; Br, Ph, 7); [AgX(L-NR)] (Br, Bu, 5; Br, Pr, 8) and halogen bridged dinuclear [Ag(μ-X)(L-NR)(PPh)] (Cl, Bu, 2; Cl, Ph, 3; Cl, Pr, 4; Br, Ph, 6) have been synthesized and characterized using modern techniques. The thio-ligands are terminally S-bonded in all the complexes.