Abstract
Three organotin(IV) complexes with 2-formylpyridine thiosemicarbazone (HFPT) of formulae [Sn(CH 3)(FPT)Cl 2] and [SnR 2(FPT)Cl] (R = CH 3 and C 2H 5) were prepared and characterized by elemental analysis as well as IR and mass spectral techniques. The X-ray crystal structure of [Sn(CH 3) 2(FPT)Cl]·0.5H 2O has been determined. In this complex, the FPT − anion acts as a mononegative NS bidentate ligand, while the pyridine nitrogen remains uncoordinated. The tin(IV) is in a strongly distorted trigonal bipyramidal configuration where the thiol sulphur and the two methyl carbons occupy the equatorial plane while the chloride and the azomethine nitrogen occupy the apical positions. The 1H and 13C NMR spectra as well as the electronic absorption spectra of these complexes are discussed.
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