13C NMR Analysis of Molecular Motions of a Ferroelectric Liquid Crystal
- 1 November 1989
- journal article
- Published by IOP Publishing in Japanese Journal of Applied Physics
- Vol. 28 (11A) , L1988
- https://doi.org/10.1143/jjap.28.l1988
Abstract
We report on the NMR observation of local molecular motions and microscopic environment of a ferroelectric liquid crystal, 4-(2-methyloctanoyl)phenyl 4'-nonylbiphenyl-4-carboxylate, obtained from variable-temperature solid-state 13C CP/MAS NMR analysis. Based on the analysis of NMR spectra and relaxation times, we show that the molecular motion of the asymmetric carbon does not change during the phase transition from SA to SC * and that the mobility of the polar group adjacent to the asymmetric carbon decreases remarkably during the phase transition.Keywords
This publication has 4 references indexed in Scilit:
- New Ferroelectric Liquid Crystal with Large Spontaneous PolarizationJapanese Journal of Applied Physics, 1989
- An Integrated Spectral Data Base System Including IR, MS, 1H-NMR, 13C-NMR, ESR and Raman SpectraAnalytical Sciences, 1988
- Design and synthesis of a new ferroelectric liquid crystal family. Liquid crystals containing a nonracemic 2-alkoxy-1-propoxy unitJournal of the American Chemical Society, 1986
- The measurement of proton-enhanced carbon-13 T1 values by a method which suppresses artifactsJournal of Magnetic Resonance (1969), 1978