Structural and spectroscopic characterization of two new Cd(II) complexes: bis(thiosaccharinato) bis(imidazole) cadmium(II) and imidazolium tris(thiosaccharinato) aquacadmate(II)

S. H. TARULLI; O. V. QUINZANI; E. J. BARAN; O. E. PIRO; E. E. CASTELLANO

JOURNAL OF MOLECULAR STRUCTURE

Elsevier

Año: 2003 vol. 656 p. 161 - 168

0022-2860

Abstract. The crystal structures of [Cd(tsac)2(im)2] (1) (tsac = anion of thiosaccharine; im = imidazole) and of (Him)[Cd(tsac)3(-H2O)] (2) (Him = imidazolium cation) have been determined at 120 K by single crystal X-ray diffractometry. Complex 1 crystallises in the monoclinic space group P21, with Z = 4 whereas compound 2 is triclinic, space group P-1 and Z = 2: In both compounds, Cd(II) is in a distorted tetrahedral environment. In the neutral complex 1 the metal is coordinated to the S atom of the two thiosaccharinato ligands and to the N-atom of the imidazole molecules. In the anionic complex 2, Cd(II) is coordinated to three thiosaccharinato S-atoms and to the O-atom of the water molecule. The FTIR spectra of both compounds were also recorded and briefly discussed.