ACTA CRYSTALLOGRAPHICA SECTION E-CRYSTALLOGRAPHIC COMMUNICATIONS, vol.60, 2004 (SCI-Expanded)
The structure of trans-[Cu(nbs)(2)(en)(2)] [nbs is the p-nitrobenzoxasulfamate anion (C6H3N2O5S)(-) and en is ethylenediamine, C2H8N2] consists of neutral molecules. The Cu2+ ion occupies an inversion centre and exhibits an elongated distorted octahedral geometry, with two monodentate nbs anions and two bidentate en ligands. Both nbs ligands are O-coordinated via an O atom of the nitro group. The crystal structure is stabilized by hydrogen bonds and weak aromatic pi-pi stacking interactions between the benzene rings of nbs ligands, forming a three-dimensional network.