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27Al Satellite Transition MAS-NMR Spectroscopy of Kaolinite

Published online by Cambridge University Press:  09 July 2018

J. Rocha  and
J. D. Pedrosa De Jesus
J. Rocha
Affiliation:
Department of Chemistry, University of Aveiro, 3800 Aveiro, Portugal
J. D. Pedrosa De Jesus
Affiliation:
Department of Chemistry, University of Aveiro, 3800 Aveiro, Portugal
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Abstract

Highly crystalline kaolinite has been studied by 27Al satellite transition magic angle-spinning (MAS) nuclear magnetic resonance (NMR) spectroscopy. This technique provides an additional narrowing of the MAS spectral lines by a factor of more than three compared with the width of the prominent central transition. Evidence for the presence of two crystallographically inequivalent hexacoordinated Al sites has been found. The results support the kaolinite crystal structure proposed by Bish & Von Dreele (1989).

Type
Research Article
Information
Clay Minerals , Volume 29 , Issue 2 , June 1994 , pp. 287 - 291
Copyright
Copyright © The Mineralogical Society of Great Britain and Ireland 1994

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References

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