Chemical and structural studies on the 2,4- and 2,3-isomers of the dicarba-nido-hexaborate(1–) ion, C2B4H7–, and some dipolar derivatives
- 1 January 1973
- journal article
- Published by Royal Society of Chemistry (RSC) in J. Chem. Soc., Dalton Trans.
- No. 20,p. 2115-2118
- https://doi.org/10.1039/dt9730002115
Abstract
The closo-carborane 1,6-C2B4H6 reacts with trimethylamine to form 5-Me3N+-nido-2,4-C2B4H6 –. The latter compound rearranges in chloroform, or thermally, to the 3-Me3N+ isomer. The parent 2,4-C2B4H7 – ion is obtained both from the action of NaH on either 3- or 5-Me3N+-2,4-C2B4H6 – and from the slow reaction of closo-1,6-C2B4H6 with either NaH or LiH. The structures of 2,4-C2B4H7 – and 2·3-C2B4H7 – and the Me3N+-2,4-C2B4H6 – isomers are correlated with 11B and 1H n.m.r. data.Keywords
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