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Exo-π-bonding to an ortho-carborane hypercarbon atom: Systematic icosahedral cage distortions reflected in the structures of the fluoro-, hydroxy- and amino-carboranes, 1-X-2-Ph-1,2-C2B10H 10 (X = F, OH or NH2) and related anions

Lookup NU author(s): Emeritus Professor Bill Clegg

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Abstract

The structures of derivatives of phenyl-ortho-carborane bearing on the second cage hypercarbon atom a π-donor substituent (F, OH, O-, NH2, NH- and CH2-) were investigated by NMR, X-ray crystallography and computational studies. The molecular structures of these compounds, notably their cage C1-C2 distances and the orientations of their π-donor substituents (OH, NH2, NH - and CH2-) show remarkable and systematic variations with the degree of exo π-bonding, which varies as expected with the π-donor characteristics of the substituent.


Publication metadata

Author(s): Boyd LA, Clegg W, Copley RCB, Davidson MG, Fox MA, Hibbert TG, Howard JAK, Mackinnon A, Peace RJ, Wade K

Publication type: Article

Publication status: Published

Journal: Dalton Transactions

Year: 2004

Issue: 17

Pages: 2786-2799

Print publication date: 07/09/2004

Date deposited: 09/07/2010

ISSN (print): 1477-9226

ISSN (electronic): 1477-9234

Publisher: Royal Society of Chemistry

URL: http://dx.doi.org/10.1039/b406422d

DOI: 10.1039/b406422d


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