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DOI: 10.1039/A800010G (Paper) Reference Section for: J. Chem. Soc., Dalton Trans., 1998, 1321-1326

Cycloheptatriene: a new versatile co-ordination ligand. Synthesis and structural characterization of [Ru6C(CO)17] derivatives

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Dario Braga, Fabrizia Grepioni, Laura Scaccianoce and Brian F. G. Johnson

Abstract

The reaction of [Ru6C(CO)17] and cycloheptatriene (CHT) gives rise to the formation of several products which have been fully characterized in solution and by single-crystal X-ray diffraction as [Ru6C(CO)15(ENBD)] 1 (ENBD = ethylenenorbornadiene), [Ru6C(CO)14(C7H8)] 2 and [Ru6C(CO)11(η5-C7H9)(µ3-η2∶η2∶η3-C7H7)] 3. Compounds 2 and 3 provide an example of the co-ordinative variability of carbocyclic rings based on the C7-frame. The ligand in 1 contains nine carbon atoms and is formed from C7H9 by an unknown process. The CHT molecule has also been observed to convert to toluene through a ring contraction activated by the cluster to form the known compound [Ru6C(CO)14(η6-C6H5CH3)] 4.

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