Journal
JOURNAL OF ORGANOMETALLIC CHEMISTRY
Volume 691, Issue 16, Pages 3472-3476Publisher
ELSEVIER SCIENCE SA
DOI: 10.1016/j.jorganchem.2006.04.031
Keywords
cobaltacarborane; B-B linkage; DHB; dihydrogen bond
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The 8,9'-[closo-{3-Co(eta(5)-C5H5)-1,2-C2B9H10)](2) (1) species, in which two large closo-CoC2B9 sub-clusters are connected by a B-B bond, is unexpectedly obtained from the reaction of closo-[3-Co(eta(5)-C5H5)-1,2-C2B9H11] with sulfur in the presence of aluminium chloride under reflux conditions. The solid state conformation of 1 seems to be the result of a pair of intramolecular C-H center dot center dot center dot H-B dihydrogen bonds between the protonic H atoms of the C5H5 fragment of a sub-cluster and the hydridic H atoms of the C2B9H11 fragment in the other sub-cluster in 1. (c) 2006 Elsevier B.V. All rights reserved.
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