Organotin(IV) carboxylates of cyclopropane carboxylic acid and 3‐cyclohexylpropanoic acid: synthesis,characterization and biological activity. The crystal structure of bis(cyclopropanecarboxylato) tetramethyldistannoxane |
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Authors: | Moumita Sen Sarma Aniruddha Saha Abhijit Roy |
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Institution: | 1. Department of Chemistry, North Bengal University, WB 734013, India;2. Department of Botany, North Bengal University, WB 734013, India |
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Abstract: | A series of tri‐ and di‐organotin(IV) derivatives of the types R3SnL, R2SnL2 and (R2SnL)2O]2 have been synthesized by the reaction of tri‐ and di‐organotin(IV) chloride(s) with sodium cyclopropane carboxylate and sodium 3‐cyclohexylpropanoate. Based on spectroscopic evidence (IR and NMR), all the triorganotin carboxylates were found to be penta‐coordinated in the solid state (except the tricyclohexyltin derivative, which was found to be four‐coordinated) and four‐coordinated in the solution state. Attempted reaction of Me2SnCl2 with sodium cyclopropane carboxylate in 1:2 stoichiometry afforded a bis(dicarboxylato tetraorganodistannoxane) complex, {Me2Sn(cyclo‐CH2)2CHCOO]2O}2. The X‐ray diffraction of this ‘dimethyltin(IV) complex’ shows that the compound possesses a tetranuclear aggregate with one bridging bidentate and other free organic ester type monodentate carboxylate groups in which each Sn atom has a five‐coordinated geometry. These complexes were also screened for their antifungal activities. Copyright © 2008 John Wiley & Sons, Ltd. |
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Keywords: | tin organotin(IV) carboxylates distannoxanes crystal structure biological activity |
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