(eta(6)-Hexamethylbenzene)(mesidine)ditriflatoruthenium(II)

The crystal structure of the title complex, (eta(6)-hexamethylbenzene)bis(t rifluoromethanesulfonato-O)(2,4,6-trimethylaniline-N)ruthenium(II), [Ru(CF3 O3S)(2)(C12H18)(C9H13N)], is described. The complex has the classic three-l egged piano-stool structure with a planar arene 1.667 Angstrom from the met al, two monodentate O-bound trifluoromethanesulfonate ligands [Ru-O 2.169 ( 2) and 2.174 (2) Angstrom] and one N-bound mesidine ligand [Ru-N 2.198 (2) Angstrom]. The Ru-N distance is relatively long and the average Ru-O distan ce is relatively short when compared with previously characterized Ru-II co mplexes.