Abstract
Abstract The complexes trans-ReOCl3(PPh3) (HL′) · Me2CO [HL′ = 2-(N-ethylamino)-1-cyclopentenedithio-carboxylate and 2-(N-cyclohexylamino)-1-cyclopentenedithiocarboxylate], with the ligand HL′ coordinated as a monodentate to rhenium(V) through the neutral thiocarbonyl sulfur atom in the position trans to the PPh3 molecule, were prepared under reflux conditions in acetone by the reaction of trans-ReOCl3(PPh3)2 with a molar excess of HL′. The products were isolated as light green precipitates from reaction solutions immediately after cooling to room temperature. The compounds cis-ReOCl3(PPh3) (HL′) · Me2CO were isolated as dark green crystals from the filtrate on slow evaporation of the solvent at room temperature over a period of 2 days. Physicochemical, infrared, 1H NMR and spectroscopic data are reported.
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