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Chemical Bond Distribution and Short Range Order in Non-Oxide Ciialcogenide Glasses. Results from NMR Spectroscopy

Published online by Cambridge University Press:  22 February 2011

Thomas Tepe ,
Carri Lyda ,
Michael Tullius ,
David Lathrop ,
Jason Leone  and
Hellmut Eckert
Thomas Tepe
Affiliation:
Department of Chemistry, University of California, Santa Barbara, CA 93106
Carri Lyda
Affiliation:
Department of Chemistry, University of California, Santa Barbara, CA 93106
Michael Tullius
Affiliation:
Department of Chemistry, University of California, Santa Barbara, CA 93106
David Lathrop
Affiliation:
Department of Chemistry, University of California, Santa Barbara, CA 93106
Jason Leone
Affiliation:
Department of Chemistry, University of California, Santa Barbara, CA 93106
Hellmut Eckert
Affiliation:
Department of Chemistry, University of California, Santa Barbara, CA 93106
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Abstract

Solid-state 31p MAS-NMR provides powerful insights into the local order of phosphorus selenide based glasses. Specifically, it allows a quantitative characterization of the melt equilibrium PSe3/2 + Se -> Se=PSe3/2 describing the stability of four-coordinate P atoms. Using this technique, the effect of isovalent substitution by As, and Te, and of other glass constituents Ge and TI on this equilibrium and on the quantitative phosphorus speciation is studied in detail.

Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 327: Symposium N – Covalent Ceramics II: Non-Oxides , 1993 , 53
Copyright
Copyright © Materials Research Society 1994

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