N-benzoyl-N'-alkylthioureas and their complexes with Ni(II), Co(III) and Pt(II) -: crystal structure of 3-benzoyl-l-butyl-l-methyl-thiourea:: activity against fungi and yeast

The thiourea derivatives of N-butylmethylamine (3-benzoyl-1-butyl-1-methyl-thiourea) (1), N-ethylisopropylamine (3-benzoyl-1-ethyl-1-isopropyl-thiourea) (2) and the corresponding complexes of 1 and 2 with Ni(II), Co(III) and Pt(II) have been synthesized. The compounds obtained were characterized by elemental analysis, spectroscopic methods (FT-IR, UV-Vis and NMR) and mass spectrometry. Compound 1, crystallized in the P (1) over bar triclinic space group. The antifungal activities of compounds 1 and 2 and their corresponding complexes against the fungus Penicillium digitatum and against the yeast Saccharomyces cerevisiae were investigated. In general, fungal growth inhibition was higher with compound 1 and its complexes than with. compound 2, except for the Co(III) complex of 2. (C) 2004 Elsevier Inc. All rights reserved.