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Issue 27, 2009
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1,1- and 1,2-isomers of the diborane(4) compound B2{1,2-(NH)2C6H4}2 and a TCNQ Co-crystal of the 1,1-isomer

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Abstract

The synthesis and X-ray crystal structures of the diborane(4) isomers 1,1-B2{1,2-(NH)2C6H4}2 and 1,2-B2{1,2-(NH)2C6H4}2 are described together with the results of quantum chemical calculations which shed light on their relative stabilities and degree of aromaticity. Spectroscopic data are also provided for both isomers of the 4-methyl aryl derivative. The compound 1,1-B2{1-O-2-(NH)C6H4}2 has also been prepared and structurally characterised but no evidence was obtained for the corresponding 1,2-isomer. The compound 1,1-B2{1,2-(NH)2C6H4}2 forms a co-crystal with TCNQ, the structure of which is also reported.

Graphical abstract: 1,1- and 1,2-isomers of the diborane(4) compound B2{1,2-(NH)2C6H4}2 and a TCNQ Co-crystal of the 1,1-isomer

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Publication details

The article was received on 10 Dec 2008, accepted on 31 Mar 2009 and first published on 20 May 2009


Article type: Paper
DOI: 10.1039/B822225H
Citation: Dalton Trans., 2009, 5348-5354
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    1,1- and 1,2-isomers of the diborane(4) compound B2{1,2-(NH)2C6H4}2 and a TCNQ Co-crystal of the 1,1-isomer

    M. A. M. Alibadi, A. S. Batsanov, G. Bramham, J. P. H. Charmant, M. F. Haddow, L. MacKay, S. M. Mansell, J. E. McGrady, N. C. Norman, A. Roffey and C. A. Russell, Dalton Trans., 2009, 5348
    DOI: 10.1039/B822225H

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