trans-Chloridobis(4-methyl-pyridine-κN)(4,4',4''-tri-tert-butyl-2,2':6',2''-terpyridine-κN,N',N'')ruthenium(II) hexa-fluoridophosphate acetone monosolvate.

The title compound, [RuCl(C(6)H(7)N)(2)(C(27)H(35)N(3))]PF(6)·C(3)H(6)O, was obtained unintentionally as the product of the reaction of 1,1'-methyl-enebis(4-methyl-pyridinium) hexa-fluoriso-phos-phate and RuCl(3)(tpy*) (tpy* is 4,4',4''-tri-tert-butyl-2,2':6',2''-terpyridine) in the presence of triethyl-amine and LiCl. The mol-ecular structure of the complex displays an octa-hedral geometry around the Ru(II) ion and the unit cell contains an acetone solvent mol-ecule and one orientationally disordered PF(6) (-) anion (occupancy ratio 0.75:0.25) which is hydrogen bonded to two H atoms of the tpy* ligand of the nearest [RuCl(pic)(2)(tpy*)](+) cation (pic is 4-methyl-pyridine). One of the tert-butyl groups of the tpy* ligand is also disordered over two sets of sites in a 0.75:0.25 ratio.