Crystal structure of trans-aquabis(ethylenediamine)sulphitocobalt(III) perchlorate monohydrate

Abstract

The crystal structure of the title compound, previously reported as having one less molecule of water, has been determined from X-ray diffractometer data and refined by least squares to R 0·080 for 1455 observed reflections. Crystals are monoclinic, space group P2₁/n, a= 11·210(3), b= 13·626(2), c= 9·727(3)Å, β= 105·17(2)°, Z= 4. Interatomic distances are: mean Co–N 1·94, Co–S 2·181(3), Co–O 2·037(7), mean Cl–O 1·41, and mean S–O 1·46 Å. The Co–OH₂ distance is long, presumably as a consequence of the trans-effect of the sulphite ligand.