HETEROATOM CHEMISTRY, cilt.21, sa.6, ss.373-385, 2010 (SCI-Expanded)
A new series of diorganotin complexes of the type R(2)SnL (L(1): N-(2-hydroxy-5-chlorophenyl)-3-ethoxysalicylideneimine, R = Me, (Me(2)SnL(1)), R = n-Bu, (n-Bu(2)SnL(1)), R = Ph, (Ph(2)SnL(1)), L(2): N-(2-hydroxy-4-nitro - 5 - chlorophenyl) - 3 - ethoxysalicylideneimine, R = Ph, Ph(2)SnL(2), L(3): N-(2-hydroxy-4-nitrophenyl)-3-methoxysalicylideneimine, R = Me, (Me(2)SnL(3)), R = n-Bu, (n-Bu(2)SnL(3)), L(4): N-(2-hydroxy-4-nitrophenyl) - 3 - ethoxysalicylideneimine, R = Me, (Me(2)SnL(4)), R = n-Bu, (n-Bu(2)SnL(4))) were synthesized and characterized by elemental analysis, infrared (IR), (1)H and (13)C NMR mass spectroscopic techniques, and electrochemical measurements. Ph(2)SnL(1) and Ph(2)SnL(2) were also characterized by X-ray diffraction analysis and were found to show a fivefold C(2)NO(2) coordination geometry nearly halfway between a trigonal bipyramidal and distorted square pyramidal arrangement. The C-Sn-C angles in the complexes were calculated using Lockhart's equations with the (1)J ((117/119)Sn-(13)C) and (2)J((117/119)Sn-(1)H) values from the (1)H NMR and (13)C NMR spectra. Biocidal activity tests against several micro-organisms and some fungi indicate that all the complexes are mildly active against Gram (+) bacteria and the fungi, A. niger and inactive against Gram (-) bacteria. (C) 2010 Wiley Periodicals, Inc. Heteroatom Chem 21:373-385, 2010; View this article online at wileyonlinelibrary.com. DOI 10.1002/hc.20628