Electrochemical synthesis and structural characterisation of zinc, cadmium and mercury complexes of heterocyclic bidentate ligands (N, S)

摘要: The electrochemical oxidation of anodic metal (zinc or cadmium) in acetonitrile solutions 3-trifluoromethylpyridine-2-thione (3-CF3-pySH) 5-trifluoromethylpyridine-2-thione (5-CF3-pySH) affords complexes [M(R-pyS)2], M = Zn, Cd, R 3-CF3, 5-CF3. Adducts these compounds with 2,2′-bipyridine (bipy) 1,10-phenanthroline (phen) were also obtained when the bidentate coligand was present cell. On other hand, reaction a methanol solution mercury acetate corresponding pyridine-2-thione presence triethylamine composition [Hg(R-pyS)2]. All have been characterised by microanalysis, IR spectroscopy and, cases where compound sufficiently soluble, 1H, 13C and 199Hg NMR spectroscopy. [Zn(3-CF3-pyS)2(bipy)] (1), [Zn(3-CF3-pyS)2(phen)]·CH3CN (2), [Zn(5-CF3-pyS)2(bipy)] (3), [Cd(3-CF3-pyS)2(DMF)]2 (4), [Cd2(5-CF3-pyS)4(DMF)]n (5), [Cd(3-CF3-pyS)2(bipy)]·CH3CN (6), [Hg(3-CF3-pyS)2] (7) [Hg(5-CF3-pyS)2] (8) X-ray diffraction.