Transition metal complexes of quinolino[3,2-b] benzodiazepine and quinolino[3,2-b] benzoxazepine: Synthesis, characterization, and antimicrobial studies

The synthesis and characterization of title complexes of the ligand Quinolino[3,2-b] benzodiazepine (QBD) and Quinolino[3,2b] benzoxazepine (QBO) are reported. The complexes have been characterized by elemental analysis, molar conductance, magnetic studies, IR, H-1 NMR, and UV-visible studies. They have the stoichiometry [ML2Cl2], where M=Co(II)/Ni( II), L=QBD/QBO, and [MLCl2], where M=Zn(II)/Cd(II), L=QBD/QBO. The antibacterial and antifungal activity of the metal complexes has been investigated. The complexes were found to have higher antimicrobial activity than the parent ligand. Copyright (c) 2007 B. Basavaraju et al. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.