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

Kód výsledku v 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>

Výsledek na webu

<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>

Jazyk výsledku

angličtina

Název v původním jazyce

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

Popis výsledku v původním jazyce

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.

Název v anglickém jazyce

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

Popis výsledku anglicky

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.

Druh

J_imp - Článek v periodiku v databázi Web of Science

CEP obor

—

OECD FORD obor

20501 - Materials engineering

Projekt

<a href="/cs/project/GA16-12150S" target="_blank" >GA16-12150S: Samouspořádávající se vícefunkční fotosenzitivní materiály</a><br>

Návaznosti

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Rok uplatnění

2018

Kód důvěrnosti údajů

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Název periodika

Journal of Molecular Liquids

ISSN

0167-7322

e-ISSN

—

Svazek periodika

267

Číslo periodika v rámci svazku

Oct

Stát vydavatele periodika

NL - Nizozemsko

Počet stran výsledku

7

Strana od-do

504-510

Kód UT WoS článku

000447575800069

EID výsledku v databázi Scopus

2-s2.0-85039996874