Synthesis and structural characterization of several tris(2-methyl-2-phenylpropyl)tin carboxylates containing germanium

Thirteen tris(2-methyl-2-phenylpropyl)tin germylpropionates have been synthesized and their structures characterized by elemental analysis, IR, multinuclear NMR (1H, 13C, 119Sn) and MS spectroscopies. The structure of (PhC(CH3)2CH2)3SnO2CCH2CH(o-C6H4Cl)GePh3 has been determined by X-ray diffraction study, which indicated that the tin in the compound possess a tetrahedral geometry. Bioassay results have shown that some of the compounds have good acaricidal activity.