Crystal and molecular structure of tri-µ-(dimethylgermanio)-tris(tricarbonylruthenium), [Ru(CO)3(GeMe2)]3
- 1 January 1971
- journal article
- research article
- Published by Royal Society of Chemistry (RSC) in J. Chem. Soc. A
- p. 3648-3650
- https://doi.org/10.1039/j19710003648
Abstract
Crystals of [Ru(CO)3(GeMe2)]3 are hexagonal, space group P63/m, with Z= 2 molecules in a unit cell of dimensions a= 10·92, c= 12·18 Å. The structure was refined to R 0·072 for 137 independent reflections. The three germanium atoms are coplanar with the three ruthenium atoms which form an equilateral triangle of side 2·93(1)Å. Two of the carbonyl groups on each Ru atom are mutually trans and almost perpendicular to the Ru3Ge3 plane, while the third lies equatorially along the mirror line of the Ru3 triangle. The Me2Ge bridges are symmetrical, with a Ru–Ge distance of 2·49(1)Å and an angle of 71·9(3)°. The molecule possesses idealised symmetry D3h(m2), and is the first example to be definitively established of a six-membered heterocyclic metal ring system.Keywords
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