Chemical and electrochemical substitution of monocarbon carboranes; rationalisation of experimental behaviour of derivatives of [nido-7-CB10H13]? and [closo-1-CB11H12]?
- 1 January 1990
- journal article
- research article
- Published by Royal Society of Chemistry (RSC) in J. Chem. Soc., Dalton Trans.
- No. 7,p. 2053-2061
- https://doi.org/10.1039/dt9900002053
Abstract
Controlled substitution of the monocarboranes [nido-7-CB10H13]–, nido-7-Me3N-7-CB10H12, and closo-1 -Me3N-1-CB11H11has been achieved by chemical and electrochemical means. The position of boron substitution in 7-Me3N-7-CB10H12derivatives depends on the experimental method. Chloride substitution at B(4) was achieved by electrophilic (electrochemical) methods, whereas HCl–AlCl3resulted in substitution at B(9). Substitution at B(8) was obtained through a nido-closo-nido sequence of oxidation and ligand addition. The compounds were structurally characterised by 11B–11B correlation n.m.r. spectroscopy. The experimental data were correlated with AM1 calculations.Keywords
This publication has 0 references indexed in Scilit: