Acta Crystallographica Section E (Feb 2009)
1,3-Bis(2-thienylmethyl)-4,5-dihydroimidazolium trichlorido(η6-p-cymene)ruthenate(II)
Abstract
The asymmetric unit of the title compound, (C13H15N2S2)[RuCl3(C10H14)], contains a 1,3-(2-thienylmethyl)-4,5-dihydroimidazolium cation and a trichlorido(η6-p-cymene)ruthenate(II) anion. The thiophene rings of the cation are disordered by an 180° rotation about the thiophene–CH2 bonds with occupancies of 0.847 (5)/0.153 (5) and 0.700 (5)/0.300 (5), respectively. The Ru atom exhibits a distorted octahedral coordination with the benzene ring of the p-cymene ligand formally occupying three sites and three Cl atoms occupying the other three sites. The short C—N bond lengths in the imidazoline ring indicate partial electron delocalization within the N—C—N fragment. Cation and anions are connected through five intermolecular C—H...Cl hydrogen bonds and one C—H...π hydrogen bond, forming a three-dimensional hydrogen-bonded network.