C. Gemel et al., (Acetonitrile-N)(eta(4)-2-methylbuta-1,3-diene)(eta(5)-pentamethylcyclopentadienyl)-ruthenium(II) trifluoromethanesulfonate, ACT CRYST C, 55, 1999, pp. 2053-2055
The title compound, [Ru{eta(5)-C-5(CH3)(5)}{eta(4)-CH2C(CH3)CHCH2}(CH3CN)](
CF3SO3) or [Ru(C5H8)(C10H15)(C2H3N)](CF3SO3), contains a half-sandwich ruth
enium complex with an exo-oriented pi-bonded diene moiety inclined at an an
gle of 16.0(2)degrees to the cyclopentadienyl ring. The coordination geomet
ry of ruthenium can be described as a three-legged piano stool.