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 <em>in situ) </em>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.