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Synthesis and characterisation of some new boron compounds containing the 2,4,6-(CF3)(3)C6H2 (fluoromes = Ar), 2,6-(CF3)(2)C6H3 (fluoroxyl = Ar '), or 2,4-(CF3)(2)C6H3 (Ar '') ligands.

Cornet, S. M. and Dillon, K. B. and Entwistle, C. D. and Fox, M. A. and Goeta, A. E. and Goodwin, H. P. and Marder, T. B. and Thompson, A. L. (2003) 'Synthesis and characterisation of some new boron compounds containing the 2,4,6-(CF3)(3)C6H2 (fluoromes = Ar), 2,6-(CF3)(2)C6H3 (fluoroxyl = Ar '), or 2,4-(CF3)(2)C6H3 (Ar '') ligands.', Dalton transactions. (23). pp. 4395-4405.

Abstract

Several new boron compounds containing the 2,4,6-(CF3)(3)C6H2 (fluoromes=Ar), 2,6-(CF3)(2)C6H3 (fluoroxyl=Ar') or 2,4-(CF3)(2)C6H3(Ar") ligands have been synthesised from reactions of ArLi, Ar'Li or Ar"Li with BCl3, and characterised by F-19 and B-11 NMR spectroscopy. Chlorine/fluorine exchanges are evident in these reactions. The crystal and molecular structures of Ar2BF, Ar"B-3, Ar2B(OH), Ar'B(OH)(2) and Mes(2)BF (Mes=2,4,6-Me3C6H2)have been determined by single crystal X-ray diffraction. Ar"B-3 represents the first example of a compound containing three Ar" ligands to be structurally characterised. Molecular geometries and GIAO-NMR shifts for several new boron compounds have been calculated at the HF/6-31G* level of theory, and compared with the available experimental results.

Item Type:Article
Full text:Full text not available from this repository.
Publisher Web site:http://dx.doi.org/10.1039/b309820f
Record Created:20 Apr 2007
Last Modified:20 Nov 2014 10:55

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