Effects of Coordination Environment on the Zr-F Symmetric Stretching Frequency of Fluorozirconate Glasses, Crystals, and Melts

Abstract

A treatment based on Badger's rule is used tc estimate symmetric stretching frequencies, s, of various ZrFn groups in the presence of divalent and monovalent counteractions. New vibrational spectra of MgZrF6, Ba2ZrF8, and beta-BaZr2F10 are presented and incorporated into the method. The factors affecting Vs, are outlined and discussed in detail. Compilations of estimated frequencies are applied to the interpretation of local structure around Zr ions in binary barium fluorozirconate glasses and in fluorozirconate melts containing lithium and sodium ions. It is concluded that the presence of 8-coordinate Zr in some barium fluorozirconate glasses is not inconsistent with the results of Raman spectroscopy. Keywords: Fluoride glass, Fibre communications, Optical materials, Raman spectra, Zirconium, Barium compounds, Magnesium compounds.

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Document Details

Document Type
Technical Report
Publication Date
Oct 01, 1988
Accession Number
ADA201897

Entities

People

  • C. A. Angell
  • Carol C. Phifer
  • David J. Gosztola
  • John Kieffer

Organizations

  • Purdue University

Tags

DTIC Thesaurus Topics

  • Chemistry
  • Classification
  • Elements
  • Environment
  • Equations
  • Fluoride Glass
  • Frequency
  • Frit
  • Glass
  • Materials
  • Molecules
  • Raman Spectra
  • Raman Spectroscopy
  • Spectra
  • Spectroscopy
  • Vibrational Spectra
  • Zirconium

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  • Materials Science and Engineering.
  • Quantum Chemistry