title: catena-Poly[copper(II)-bis-(μ-2-ethyl-5-methyl-imidazole-4-sulfonato-κN,O:O)].
abstract: In the title compound, [Cu(C(6)H(9)N(2)O(3)S)(2)](n), the copper(II) ion sits on an inversion center and is chelated by the imidazole N and sulfonate O atoms of two ligands in equatorial positions. O atoms of adjacent mol-ecules coordinate in the axial positions. Jahn-Teller tetra-gonal distortion is evident in the coordination geometry [Cu-N and Cu-O equatorial distances of 1.971 (3) and 2.045 (2) Å, respectively, with a Cu-O axial distance of 2.433 (3) Å]. The structure is propagated by an infinite chain of eight-membered (Cu-O-S-O)(2) ring systems along the a axis. Only N-H⋯O hydrogen bonding exists between the chains.
authors: Andrew P
authors: AP
authors: Purdy
authors: Ray J
authors: RJ
authors: Butcher