M. Roy, Subhadip Roy, N. M. Devi
Sep 5, 2016
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0
Influential Citations
17
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Journal
Journal of Molecular Structure
Abstract
Abstract Diorganotin(IV) complexes appended with free carboxylic acids were synthesized by reacting diorganotin(IV) dichlorides [R 2 SnCl 2 ; R = Me ( 1 ), Bu ( 2 ) and Ph ( 3 )] with an azo-imino carboxylic acid ligand i.e . 2-{4-hydroxy-3-[(2-hydroxyphenylimino)methyl]phenylazo}benzoic acid in presence of triethylamine. The complexes were characterized by elemental analysis, IR and multinuclear NMR ( 1 H, 13 C and 119 Sn) spectroscopy. The structure of 1 in solid state has been determined by X-ray crystallography. Crystal structure of 1 reveals that the compound crystallizes in monoclinic space group P 2 1 /c and is a dimeric dimethyltin(IV) complex appended with free carboxylic acid groups. In the structure of 1 , the Sn(IV) atoms are hexacoordinated and have a distorted octahedral coordination geometry in which two phenoxy oxygen atoms and the azomethine nitrogen atom of the ligand coordinate to each tin atom. One of the phenoxy oxygen atom bridges the two tin centers resulting in a planar Sn 2 O 2 core. Topological analysis is used for the description of molecular packing in 1 . Tin NMR spectroscopy study indicates that the complexes have five coordinate geometry around tin atom in solution state. Since the complexes have free carboxylic acids, these compounds could be further used as potential metallo-ligands for the synthesis of other complexes. The synthesized diorganotin(IV) complexes were also screened for their antimicrobial activities and compound 2 showed effective antimicrobial activities.