Synthesis, Spectral Studies and Antifungal Activity of β-Diketonate Complexes of Bimetallic Organotin(IV) aluminium(III)-μ-oxoalkoxides

Abstract

Organotin derivatives of the type PhMeSn(OAc)OAl (OPrⁱ)(L), PhMeSn(OAc)OAl(L)₂, PhMeSnO₂Al₂(OPrⁱ)₃(L) and PhMeSnO₂Al₂(OPrⁱ)₂(L)₂ have been synthesized by the reaction of PhMeSn(OAc)OAl(OPrⁱ)₂ (1) and PhMeSnO₂Al₂ (OPrⁱ)₄ (2) with β-diketones in 1:1 and 1:2 molar ratio in refluxing benzene. These complexes have been characterized by elemental analysis and spectral studies (IR, ¹H, ¹³C, ²⁷Al and ¹¹⁹Sn NMR). The results of antifungal activity of the complexes as well as precursors have also been recorded and discussed with the standard fungicide against Colletotrichum falcatum.