A substituted hexaosmium hydrido cluster with benzene ligands in two different bonding modes; synthesis and structural characterisation of [Os6H2(CO)11(η6-C6H6)(µ3-η2:η2:η2-C6H6)]
- 1 January 1993
- journal article
- research article
- Published by Royal Society of Chemistry (RSC) in J. Chem. Soc., Dalton Trans.
- No. 6,p. 999-1000
- https://doi.org/10.1039/dt9930000999
Abstract
Treatment of [Os5H4(CO)11(η6-C6H6)]1 with 1,8-diazabicyclo[5.4.0]undec-7-ene in CH2Cl2 gives the dianion [Os5H2(CO)11(η6-C6H6)]2–2, and subsequent reaction of 2 with [Os(η6-C6H6)(MeCN)3][BF4]2 provides the new bis-benzene cluster [Os6H2(CO)11(η6-C6H6)(µ3-η2:η2:η2-C6H6)]3 in ca. 35% yield, the X-ray analysis of which shows that the six osmium atoms adopt a bicapped tetrahedral geometry with one benzene ligand in a terminal η6 site and the other in a face-capping µ3-η2:η2:η2 site.Keywords
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