6533b838fe1ef96bd12a45de
RESEARCH PRODUCT
Time-Resolved Fourier-Transform Infrared Spectroscopy on the Inter- and Intramolecular Orientational Dynamics in Ferroelectric Liquid Crystalline Dimers
S. V. ShilovH. SkupinTobias WittigRudolf ZentelFriedrich Kremersubject
Materials scienceLiquid crystallineDimerDynamics (mechanics)General Physics and AstronomyMolecular physicsFerroelectricityCondensed Matter::Soft Condensed MatterBase (group theory)chemistry.chemical_compoundNuclear magnetic resonanceTilt (optics)chemistryIntramolecular forceFourier transform infrared spectroscopydescription
On a base of time-resolved step-scan IR-spectroscopy data, we present a detailed model of the segmental reorientation during the ferroelectric and electroclinic switching of a chiral liquid crystalline dimer. We detected that the magnitude of the motion of the molecular segments differ from each other: The tilt angle is maximal for the mesogens and minimal for the ``virtual polysiloxane backbone.'' In contrast to a recently published conjecture, we prove that in the \ensuremath{\mu}s scale the responses of different molecular segments are unambiguously synchronous with each other.
| year | journal | country | edition | language |
|---|---|---|---|---|
| 1997-09-01 | Physical Review Letters |