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Replacement of OH by OD in layer silicates, and identification of the vibrations of these groups in infra-red spectra

Published online by Cambridge University Press:  05 July 2018

J. D. Russell ,
V. C. Farmer  and
B. Velde
J. D. Russell
Affiliation:
The Macaulay Institute for Soil Research, Craigiebuckler, Aberdeen
V. C. Farmer
Affiliation:
The Macaulay Institute for Soil Research, Craigiebuckler, Aberdeen
B. Velde
Affiliation:
Laboratoire de Pétrographie, Tours 16-26, Faculté des Sciences de Paris, 9 Quai Saint Bernard, Paris 5ème
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Summary

Conditions necessary for exchange between lattice OH groups and D2O in expanding layer silicates are reported. From spectral changes in the 200–1200 cm−1 region resulting from this exchange, in-plane librations of OH co-ordinated to (A1A1), (A1Mg), (A1Fe3+), and (MgMgMg) have been identified in montmorillonite, beidellite, saponite, hectorite, and vermiculite. Both in-plane and out-of-plane librations have been identified for pyrophyllite and celadonite, from comparison of synthetic specimens containing OD with natural or synthetic OH forms. Comparison of hydrogen and deuterium forms of Mg- and Ni-talcs leads to the identification of translational and librational OH vibrations.

Type
Research Article
Information
Mineralogical Magazine , Volume 37 , Issue 292 , December 1970 , pp. 869 - 879
Copyright
Copyright © The Mineralogical Society of Great Britain and Ireland 1970

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