Abstract

New series of diorganotin(IV) complexes of the type Ph₂SnL₂, Bu₂SnL₂ and Me₂SnL₂ of the ligand benzamidomethionine (L_H). Ligand formed by reaction of benzoyl chloride with methionine in presence of sodium hydroxide. The prepared complexes were characterized by elemental analysis, infrared, conductance measurements and nuclear magnetic resonance (^1HNMR and ^13CNMR) spectral data. From the spectral measurements, monomer structures for the complexes were proposed. Bidentate and Octahedral geometry was proposed for the complexes prepared. Preliminary in vitro tests for fungicidal activity show that all prepared compounds display good activity to Gibberela, Cercospora arachidicola, Physolospora piricola and Fusarium oxysporum. Moreover, the Ph₂SnL₂ show a higher inhibition percentage then diorganotin carboxylate. 

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