Synthesis and characterisation of organotin(IV) derivatives of benzilmonohydrazone

Abstract

Some new tri- and di-organotin(IV) derivatives of benzilmonohydrazone have been prepared by the reaction of the corresponding tri- and di-organotin(lV) chlorides with the sodium salt of benzilmonohydrazone (prepared in situ) in 1:1 and 1:2 molar ratios, respectively, in refluxing benzene. These derivatives have been characterised by elemental analyses, molecular weights, conductivity measurements, melting points determinations, and IR and NMR (1H and 119Sn) spectral studies. All the complexes are monomeric and non-electrolytic in nature, and are soluble in most of the organic solvents. IR and NMR spectral data of these complexes show the bidentate behaviour of benzilmonohydrazone and five-coordinate and six-coordinate structures for triorganotin(lV) and diorganotin(IV) derivatives, respectively.