Synthesis, characterization, and in vitro antimicrobial activities of organotin(IV) complexes of Schiff bases with ONO‐type donor atoms
2010; Wiley; Volume: 21; Issue: 6 Linguagem: Inglês
10.1002/hc.20628
ISSN1098-1071
AutoresGülgün Yenişehirli, Nurşen Altuntaş Öztaş, Ertan Şahi̇n, Mustafa Çelebi̇er, N. Ancın, Selma Gül Öztaş,
Tópico(s)Organometallic Complex Synthesis and Catalysis
ResumoAbstract 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 CSnC 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. © 2010 Wiley Periodicals, Inc. Heteroatom Chem 21:373–385, 2010; View this article online at wileyonlinelibrary.com . DOI 10.1002/hc.20628
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