Synthesis, characterization and biological studies of organotin(IV) complexes with hydrazone ligand
作者:Md. Abu Affan、Siong Wan Foo、Ismail Jusoh、Sulaiman Hanapi、Edward R.T. Tiekink
DOI:10.1016/j.ica.2009.08.010
日期:2009.11
Four organotin(IV) complexes with general formula [RSnCln-1(TCB)] [R = Ph-2, n = 2 (2); R = Me, n = 3 (3); R = Bu, n = 3 (4); R = Ph, n = 3 (5)] have been synthesized by direct reaction of thiophene-2-carboxaldehyde benzhydrazone ligand [HTCB, (1)], base and organotin(IV) chloride in absolute methanol under N-2 atmosphere. All organotin(IV) complexes were characterized by elemental analyses, molar conductivity, UV-Vis, FT-IR, H-1 and C-13 NMR spectral studies. Among them, diphenyltin(IV) complex (2) has also been characterized by X-ray crystallography diffraction analyses. The cytotoxicity of the hydrazone ligand as well as its organotin(IV) complexes (2-5) were determined with Artemia salina. While no-choice bioassay was employed on Coptotermes sp. to evaluate the termiticidal effect of all the complexes. Besides, the ligand (1) and its organotin(IV) complexes (2-4) were also tested against five types of bacteria namely Bacillus subtilis, Staphylococcus aureus, Escherichia coli, Pseudomonas aeruginosa and Salmonella typhi. (C) 2009 Elsevier B. V. All rights reserved.