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A Comparative Study of Ionic Association in Poly(Ethylene Oxide)- MCF3SO3 Systems (M=Lithium and Sodium)

Published online by Cambridge University Press:  10 February 2011

Roger Frech,
Christopher P. Rhodes and
Shawna S. York
Roger Frech
Affiliation:
Department of Chemistry and Biochemistry, University of Oklahoma, Norman, OK 73019, rfrech@ou.edu
Christopher P. Rhodes
Affiliation:
Department of Chemistry and Biochemistry, University of Oklahoma, Norman, OK 73019
Shawna S. York
Affiliation:
Department of Chemistry and Biochemistry, University of Oklahoma, Norman, OK 73019
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Abstract

A comparative infrared spectroscopic study of the local vibrational potential energy environment of the CF3SO3 (triflate) anion in the poly(ethylene oxide)-lithium triflate and poly(ethylene oxide)-sodium triflate systems is presented. Analysis of the crystalline stoichiometric compounds in the two systems identifies significant differences in the ionic association. Comparison of the relative percentages of the anionic species in the PEO-NaTf system at various concentrations suggests that crystalline compound formation may proceed through intermediate structures. A symmetry-based vibrational analysis is applied to the crystalline compounds.

Information

Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 548: Symposia EE – Solid State Ionics V , 1998, 335
Copyright
Copyright © Materials Research Society 1999

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