Cadmium(II) complexes with [(4-methylphenyl)sulfonyl]-2-pyridyl-amine: crystal structures of bis{[(4-methylphenyl)sulfonyl]-2- pyridyl-amide}cadmium(II); aquo-bis(pyridine) bis{[(4-methylphenyl)sulfonyl]-2-pyridyl-amide}-cadmium(II) and 1,10-phenanthroline bis{[(4-methylphenyl)-sulfonyl]-2-pyridyl-amide}cadmium(II)

Electrochemical oxidation of cadmium in a solution of [(4-methylphenyl)sulf onyl]-2-pyridyl-amine (HL) in acetonitrile/ dichloromethane afforded the co mpound [CdL2]. When pyridine (py), 2,2'-bipyridine (bipy) or 1,10-phenanthr oline (phen) was added to the electrolytic phase, [CdL(2)py(2)(H2O)], [CdL( 2)bipy] and [CdL(2)phen] were obtained. The crystal structures of [CdL2] (1 ), [CdL(2)py(2)(H2O)] (2) and [CdL(2)phen] (3) have been determined by X-ra y diffraction techniques. The complex [CdL2] is best described in terms of a linear polymer with the metal atom in a [CdN4O2] distorted octahedral env ironment. The [CdL(2)py(2)(H2O)] and [CdL(2)phen] complexes are monomeric, with the cadmium atoms in [CdN6O] distorted pentagonal bipyramid and [CdN6] trigonal prismatic environments, respectively. (C) 1999 Elsevier Science S .A. All rights reserved.