Effect of lateral fluorine substitution far from the chiral center on mesomorphic behaviour of highly titled antiferroelectric (S) and (R) enantiomers

Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68378271%3A_____%2F18%3A00494617" target="_blank" >RIV/68378271:_____/18:00494617 - isvavai.cz</a>
Result on the web
<a href="http://dx.doi.org/10.1016/j.molliq.2017.12.114" target="_blank" >http://dx.doi.org/10.1016/j.molliq.2017.12.114</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1016/j.molliq.2017.12.114" target="_blank" >10.1016/j.molliq.2017.12.114</a>

Result language
angličtina
Original language name
Effect of lateral fluorine substitution far from the chiral center on mesomorphic behaviour of highly titled antiferroelectric (S) and (R) enantiomers
Original language description
Several new liquid crystalline chiral ester enantiomers in the (S) and (R) configuration were designed and characterised. In order to tune their mesomorphic properties the molecular core was laterally substituted by fluorine atoms in different positions of the phenyl ring placed far from the chiral centre. All the materials possess the paraelectric orthogonal smectic A*, the ferroelectric tilted smectic C* and antiferroelectric tilted smectic C*A phases over a broad temperature range down to room temperature. Properties of the materials were characterised by the polarising optical microscopy, differential scanning calorimetry, electro-optics and dielectric spectroscopy. Due to high chemical stability, broad temperature range of polar smectic mesophases (up to 110 K) and very high values of the optical tilt angle (40-45o), these materials can be used as chiral dopants for the multicomponent orthoconic mixture design aimed for advanced electro-optic and photonic devices.
Czech name
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Czech description
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Type
J<sub>imp</sub> - Article in a specialist periodical, which is included in the Web of Science database
CEP classification
—
OECD FORD branch
20501 - Materials engineering

Project
<a href="/en/project/GA16-12150S" target="_blank" >GA16-12150S: Self-assembling photosensitive materials with multiple functionality</a><br>
Continuities
P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Publication year
2018
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

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