Crystal and molecular structure of tri-µ-(dimethylgermanio)-tris(tricarbonylruthenium), [Ru(CO)3(GeMe2)]3

摘要: Crystals of [Ru(CO)3(GeMe2)]3 are hexagonal, space group P63/m, with Z= 2 molecules in a unit cell dimensions a= 10·92, c= 12·18 A. The structure was refined to R 0·072 for 137 independent reflections. three germanium atoms coplanar the ruthenium which form an equilateral triangle side 2·93(1)A. Two carbonyl groups on each Ru atom mutually trans and almost perpendicular Ru3Ge3 plane, while third lies equatorially along mirror line Ru3 triangle. Me2Ge bridges symmetrical, Ru–Ge distance 2·49(1)A angle 71·9(3)°. molecule possesses idealised symmetry D3h(m2), is first example be definitively established six-membered heterocyclic metal ring system.