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Structure-Sensitive Vibrations in Zeolites as Studied by Raman Scattering

Published online by Cambridge University Press:  28 February 2011

R. G. Buckley ,
H. W. Deckman ,
J. M. Newsam ,
J. A. McHenry ,
P. D. Persans  and
H. Witzke
R. G. Buckley
Affiliation:
Physics and Engineering Laboratory, DSIR, Private Bag, Lower Hutt, New Zealand
H. W. Deckman
Affiliation:
Exxon Research and Engineering Company, Clinton Township, Route 22, East, Annandale, NJ 08801
J. M. Newsam
Affiliation:
Exxon Research and Engineering Company, Clinton Township, Route 22, East, Annandale, NJ 08801
J. A. McHenry
Affiliation:
Physics and Engineering Laboratory, DSIR, Private Bag, Lower Hutt, New Zealand
P. D. Persans
Affiliation:
Rennsalaer Polytechnic Institute, Physics Department, Troy, NY, 12180-3590
H. Witzke
Affiliation:
Exxon Research and Engineering Company, Clinton Township, Route 22, East, Annandale, NJ 08801
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Abstract

In this paper we demonstrate the usefulness of a nearest neighbor force model for studying the structural dependence of the lattice dynamics of zeolites. Interpreting Raman scattering in the context of this model confirms earlier empirical vibrational assignments in zeolites and underlines the importance of short range forces in determining the frequencies of certain zeolite vibrational modes. The model describes fully the low frequency bond bending mode of A1 symmetry, although long range forces are shown to be required to model complete zeolite vibrational spectra.

Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 111: Symposium O – Microstructure and Properties of Catalysts , 1987 , 141
Copyright
Copyright © Materials Research Society 1988

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