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Inelastic Neutron Scattering Studies of Nonlinear Optical Materials: p-Nitroaniline Adsorbed in Alpo-5

Published online by Cambridge University Press:  21 February 2011

Jacqueline M. Nicol ,
Terrence J. Udovic ,
J.J. Rush ,
Sherman D. Cox  and
Galen D. Stucky
Jacqueline M. Nicol
Affiliation:
University of Maryland, College Park, MD 20742 and National Institute of Standards and Technology, Gaithersburg, MD 20899
Terrence J. Udovic
Affiliation:
National Institute of Standards and Technology, Gaithersburg, MD 20899
J.J. Rush
Affiliation:
National Institute of Standards and Technology, Gaithersburg, MD 20899
Sherman D. Cox
Affiliation:
University of California, Santa Barbara, CA
Galen D. Stucky
Affiliation:
University of California, Santa Barbara, CA
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Abstract

Inelastic neutron scattering has been used to characterize the vibrational spectroscopy below 220 meV of para-nitroaniline adsorbed in the molecular sieve ALPO-5. Samples at loadings of both 3 and 13 weight %, which represent the onset of and the maximum in the nonlinear optical properties respectively, were studied. The torsional vibration of the amino (NH2) group has been identified at ca. 50 meV. The splitting and structure of this mode is sensitive to the loading level. This can be related to differences in the nature of the hydrogen bonding in these materials.

Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 166: Symposium J – Neutron Scattering for Materials Science , 1989 , 367
Copyright
Copyright © Materials Research Society 1990

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References

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