MOLECULAR-CONFORMATION IN MESOMORPHIC AND SOLID STATES IN FERROELECTRIC LIQUID-CRYSTAL MBOPDOB

Authors
HE L YIN Z ZHANG MS HUANG Q
Citation
L. He et al., MOLECULAR-CONFORMATION IN MESOMORPHIC AND SOLID STATES IN FERROELECTRIC LIQUID-CRYSTAL MBOPDOB, Journal of the Korean Physical Society, 32, 1998, pp. 1069-1071
Citations number
8
Categorie Soggetti
Physics
Journal title
Journal of the Korean Physical Society → ACNP
ISSN journal
03744884
Volume
32
Year of publication
1998
Part
3
Supplement
S
Pages
1069 - 1071
Database
ISI
SICI code
0374-4884(1998)32:<1069:MIMASS>2.0.ZU;2-F
Abstract
Raman spectra and differential scanning calorimetry (DSC) are examined in ferroelectric liquid crystal D-4-(2-methylbutoxy) phenyl 4-decylox ybenzoate(MBOPDOB) at various temperatures. On heating we observed two sets of Raman lines (1166 and 1730 cm(-1), and 1178 and 1710 cm(-1)) which are related to S-cis and S-trans conformations of COO group, res pectively. During the cooling process, we find another kind of the COO stretch line with a new line-shape. DSC an low frequency Raman scatte ring measurements show that a new phase appears between the Sm C and solid phases.