Molecular probing of dielectric relaxation in the glass-transition region

Research output: Contribution to journalArticle

42 Scopus citations

Abstract

Conventional dielectricε*(ω) data and solvation dynamic C(t) data are recorded simultaneously, assuring perfect coincidence of experimental conditions for the two relaxation phenomena in the glass-former 2-MTHF doped with quinoxaline. The dynamic MSA theory for dipolar solvation turns out to relate the observed Stokes-shift dynamics to the dielectric data in a quantitative fashion. The agreement between theory and experiment facilitates access to "microscopic" dielectric relaxation via spectroscopy of appropriate molecular probes in supercooled liquids.

Original languageEnglish (US)
Pages (from-to)355-359
Number of pages5
JournalChemical Physics Letters
Volume199
Issue number3-4
DOIs
StatePublished - Nov 6 1992
Externally publishedYes

ASJC Scopus subject areas

  • Physics and Astronomy(all)
  • Physical and Theoretical Chemistry

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