Synthesis, spectroscopic studies and fungicidal activity of some diorganotin(IV) with 2-[(phenylcarbonyl)amino]propanoato

摘要

New diorganotin(IV) complexes of the type Ph 2 SnL 2 , Bu 2 SnL 2 and Me 2 SnL 2 of the ligand 2-[(phenylcarbonyl)amino]propanoic acid (HL) ligand formed by reaction of benzoyl chloride with alanine in presence of sodium hydroxide. The prepared complexes were characterized by infrared, nuclear magnetic resonance ( 1 H, 13 C, 119 Sn NMR) spectral data and elemental analysis and conductance measurements. From the spectral measurements, monomer structures for the complexes were proposed. Bidentate and Octahedral geometry was proposed for the complexes prepared. Bioassay result 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 Ph 2 SnL 2 show a higher inhibition percentage then diorganotin carboxylate.