ISSN print edition: 0366-6352 ISSN electronic edition: 1336-9075 Registr. No.: MK SR 9/7 Published monthly

Crystal structure of sulfatodihydroethylenediaminecopper(II) complex

M. Dunaj-Jurčo and M. A. Porai-Koshits

Slovak Technical University, Bratislava

Abstract: Some results of the x-ray structural analysis of the complex [CuSO₄(H₂O)₂en] (I) are described. I is monoclinic with space group Bb and lattice parameters a 7.252, b 9.777, c 11.859 A., and γ 105° 36', the R factor is 14.2%. Cu is tegragonal-planar coordinated with 1 chelate bound mol. of ethylenediamine and with 2 mols. of H₂O in the cis position. The coordinated polyhedron is stretched to a drawn-up bipyramid with 2 atoms of O of the various sulfate groups. Each of the H₂O mol. forms 2 H bonds with the atoms of O of various sulfate groups so that the SO₄^2- group in the structure plays an important part from the stereochem. and crystallostructural aspects. The interat. distances are: Cu-N(z en) 1.98, 2.03, Cu-O(z H2O) 1.96, 2.03, and Cu-O(z SO₄^2-) 2.44, 2.59 A. The structure of I is formed by endless chains of the type [Cu(H₂O)₂ en]-SO₄-[Cu(H₂O)₂ en], which are mutually bound with H bridges.

Full paper in Portable Document Format: 2010a783.pdf (in Slovak)

Chemical Papers 20 (10) 783–788 (1966)