Structural Characterization and Antimicrobial Studies of some New Coordination Compounds of Tin (II) and Tin (IV) with Semicarbazones and Thiosemicarbazones

Author(s): Arpita Verma, Shilpa Sharma, Monica Bedi, S. Varshney and A. K. Varshney

New tetra and hexacoordinated complexes of tin (II) and tin (IV) have been synthesized by the reaction of stannous chloride and dimethyltin dichloride with semicarbazones and thiosemicarbazones prepared by the condensation of aldehydes /ketones with semicarbazide hydrochloride / thiosemicarbazide in absolute alcohol. The bonding pattern and the geometry of these newly synthesized compounds have been suggested on the basis of elemental analysis, electronic, infrared, 1 H and 119Sn NMR spectral studies. The monomeric and non-electrolytic nature of these complexes have been confirmed by molecular weight determinations and conductance measurements, respectively. The ligands and their tin complexes have been screened for their antimicrobial activities against several fungi and were found to be quite active in this respect.

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