Structure and vibrational spectra of image complex with N-methyl-2-pyridinecarbothioamide

Syntheses of a bidentate ligand L = N-methyl-2-pyridinecarbothioamide and its tricarbonylchlororhenium(I) complex, [fac-Re(CO)3LCl], are described. Physico-chemical characteristics of the novel species are presented. The molecular structures of both complex and ligand have been established by means of X-ray single crystal diffraction, and confirmed by FT-IR spectroscopy. UV–Vis absorption spectra of the complex have shown that it is stable in aqueous solutions at least for several days. Partition coefficients of the ligand and the complex in the iso-octanol–water systems have been determined. Lipophilicity of both is moderate: log(P) ≈ 1.1.