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2H NMR Study of Hydrogen Bonding in Deuterated Kaolinite

Published online by Cambridge University Press:  28 February 2024

Shigenobu Hayashi
Affiliation:
National Institute of Materials and Chemical Research, Tsukuba, Ibaraki 305, Japan Department of Chemistry, University of Tsukuba, Tsukuba, Ibaraki 305, Japan
Etsuo Akiba
Affiliation:
National Institute of Materials and Chemical Research, Tsukuba, Ibaraki 305, Japan
Ritsuro Miyawaki
Affiliation:
National Industrial Research Institute of Nagoya, Kita-ku, Nagoya 462, Japan
Shinji Tomura
Affiliation:
National Industrial Research Institute of Nagoya, Kita-ku, Nagoya 462, Japan
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Abstract

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2H NMR spectra of synthetic deuterated kaolinite have been collected in the temperature range from 150 K to 350 K. Hydroxyl groups show a Pake doublet pattern with an asymmetry factor of 0. They are almost fixed spatially, and undergo a wobbling motion with increasing temperature. The quadrupole coupling constant is 273 ± 3 kHz at 150 K, which indicates that interlayer hydrogen bonding is relatively weak.

Type
Research Article
Copyright
Copyright © 1994, Clay Minerals Society

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