Synthesis and Reactivity of Indium(III) and Thallium(I) Imine Complexes

The coordination behaviour of thiosemicarbazone (ί'Η) and semicarbazone (L 2 H) ligands having the donor systems Ν, Ο or N, S towards indium(III) and thallium(I) has been studied.The unimolar, bimolar and trimolar reactions of indium isopropoxide and unimolar reactions of T1C1 with monobasic bidentate ligands result in the formation of coloured solids, which have been characterized by elemental analysis and molecular weight determinations.The UV, IR and 'H NMR spectral studies of indium(IIl) complexes indicated pentacoordinated structure for 1:1 complex, hexacoordinated for 1:2 and 1:3 complexes.Thallium(I) complexes exhibited bicoordinated geometries.Both the ligands and their complexes have been screened for their fungicidal and bactericidal activity.

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