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Transmission of Electron Density Through Moieties Between Donors and Acceptors: Possible Implications for Non-Linear Optics

Published online by Cambridge University Press:  25 February 2011

G. E. Wnek ,
P. Kitipichai ,
G. Frysinger ,
G. M. Korenowski ,
I. Gorodisher ,
D. R. Uhlmann  and
Y. Wei
G. E. Wnek
Affiliation:
Department of Chemistry, Rensselaer Polytechnic Institute, Troy, NY 12180-3590
P. Kitipichai
Affiliation:
Department of Chemistry, Rensselaer Polytechnic Institute, Troy, NY 12180-3590
G. Frysinger
Affiliation:
Department of Chemistry, Rensselaer Polytechnic Institute, Troy, NY 12180-3590
G. M. Korenowski
Affiliation:
Department of Chemistry, Rensselaer Polytechnic Institute, Troy, NY 12180-3590
I. Gorodisher
Affiliation:
Department of Materials Science and Engineering, University of Arizona, Tucson, AZ 85721
D. R. Uhlmann
Affiliation:
Department of Materials Science and Engineering, University of Arizona, Tucson, AZ 85721
Y. Wei
Affiliation:
Department of Chemistry, Drexel University, Philadelphia, PA 19104
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Abstract

Organic materials having aminophenyl and nitrophenyl moieties linked by various atoms or groups (S, O, SO, SO2, CH2) were prepared and their ability to generate a second harmonic was compared within the series and with urea. We find that the compound containing a sulfur bridge, 4-amino-4′-nitrodiphenyl sulfide, exhibits a powder second harmonic generation efficiency which is approximately 10x that of urea. The result is consistent with earlier spectroscopic studies which indicate that sulfur, as opposed to the other bridges studied in this series, is effective in allowing the transmission of electron density between donors and acceptors.

Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 109: Symposium K – Nonlinear Optical Properties of Polymers , 1987 , 139
Copyright
Copyright © Materials Research Society 1988

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References

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