Evolution of the coherence of vibrational states in a gradual disorder-order phase transition

V. K. Dolganov, M. Gal, N. Kroo, L. Rosta, E. F. Sheka

Research output: Contribution to journalArticle

8 Citations (Scopus)

Abstract

The nematic liquid crystal compound n-p-methoxy-benzylidene-p-butylaniline (MBBA) may be induced to form a solid glassy liquid crystal state by fast cooling. Under heating this amorphous structure can be gradually transformed into real crystal through intermediate, not completely crystallized phases. Laser Raman spectra of all phases were recorded in the 3-1800 cm-1 frequency range. Analysing changes occuring in the intermolecular part of the spectra (3-160 cm-1) from one phase to another it can be shown that the coherence of vibrational states evolves gradually according to the different stages of the disorder-order structural transformation.

Original languageEnglish
Pages (from-to)325-328
Number of pages4
JournalJournal of Molecular Structure
Volume114
Issue numberC
DOIs
Publication statusPublished - 1984

ASJC Scopus subject areas

  • Analytical Chemistry
  • Spectroscopy
  • Organic Chemistry
  • Inorganic Chemistry

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