Crystal structures and biological activities of a symmetrical quinoline thioether ligand and its transition metal complexes

The ligand 2,6-bis (8-quinolinylthiomethyl) pyridine and its four transition metal complexes have been synthesized and characterized by elemental analysis (EA), infrared spectra (IR) and single-crystal diffraction. It was revealed that compounds 1-3 were comprised of discrete mononuclear units and double nuclear structure in compound 4. The antibacterial activities and pesticide activities of the ligand and complexes 1-4 were tested. The results showed that some compounds had absolute specificity for certain bacteria, and could have good application prospect in pharmaceutical and agricultural use. (C) 2015 The Authors. Published by Elsevier B.V.