A new series of azo-containing bent-core liquid crystals derived from 3-hydroxybenzoic acid has been synthesized. Their mesomorphic properties have been characterized by polarizing optical microscopy, differential scanning calorimetry, small-angle X-ray diffraction and electro-optic studies. Almost all the compounds form an enantiotropic modulated smectic (B-7 type) phase over relatively broad temperature ranges. Structural modifications, such as the type and length of the terminal chains, the rigidity of wings, and the presence of a Cl-substituent in different positions of the bent core, affect the appearance and temperature range, but not the type of the mesophase of the investigated compounds. Light-induced changes in the texture and phase transition of the mesophase, attributed to the decrease of the order parameter due to trans-cis isomerization, have also been observed.
TY - JOUR
AU - Trišović, Nemanja
AU - Antanasijević, Jelena
AU - Toth-Katona, Tibor
AU - Kohout, Michal
AU - Salamonczyk, Miroslaw
AU - Sprunt, Samuel
AU - Jakli, Antal
AU - Fodor-Csorba, Katalin
PY - 2015
UR - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/3111
AB - A new series of azo-containing bent-core liquid crystals derived from 3-hydroxybenzoic acid has been synthesized. Their mesomorphic properties have been characterized by polarizing optical microscopy, differential scanning calorimetry, small-angle X-ray diffraction and electro-optic studies. Almost all the compounds form an enantiotropic modulated smectic (B-7 type) phase over relatively broad temperature ranges. Structural modifications, such as the type and length of the terminal chains, the rigidity of wings, and the presence of a Cl-substituent in different positions of the bent core, affect the appearance and temperature range, but not the type of the mesophase of the investigated compounds. Light-induced changes in the texture and phase transition of the mesophase, attributed to the decrease of the order parameter due to trans-cis isomerization, have also been observed.
PB - Royal Soc Chemistry, Cambridge
T2 - RSC Advances
T1 - Azo-containing asymmetric bent-core liquid crystals with modulated smectic phases
EP - 64891
IS - 80
SP - 64886
VL - 5
DO - 10.1039/c5ra09764a
ER -
@article{
author = "Trišović, Nemanja and Antanasijević, Jelena and Toth-Katona, Tibor and Kohout, Michal and Salamonczyk, Miroslaw and Sprunt, Samuel and Jakli, Antal and Fodor-Csorba, Katalin",
year = "2015",
abstract = "A new series of azo-containing bent-core liquid crystals derived from 3-hydroxybenzoic acid has been synthesized. Their mesomorphic properties have been characterized by polarizing optical microscopy, differential scanning calorimetry, small-angle X-ray diffraction and electro-optic studies. Almost all the compounds form an enantiotropic modulated smectic (B-7 type) phase over relatively broad temperature ranges. Structural modifications, such as the type and length of the terminal chains, the rigidity of wings, and the presence of a Cl-substituent in different positions of the bent core, affect the appearance and temperature range, but not the type of the mesophase of the investigated compounds. Light-induced changes in the texture and phase transition of the mesophase, attributed to the decrease of the order parameter due to trans-cis isomerization, have also been observed.",
publisher = "Royal Soc Chemistry, Cambridge",
journal = "RSC Advances",
title = "Azo-containing asymmetric bent-core liquid crystals with modulated smectic phases",
pages = "64891-64886",
number = "80",
volume = "5",
doi = "10.1039/c5ra09764a"
}
Trišović, N., Antanasijević, J., Toth-Katona, T., Kohout, M., Salamonczyk, M., Sprunt, S., Jakli, A.,& Fodor-Csorba, K.. (2015). Azo-containing asymmetric bent-core liquid crystals with modulated smectic phases. in RSC Advances
Royal Soc Chemistry, Cambridge., 5(80), 64886-64891.
https://doi.org/10.1039/c5ra09764a
Trišović N, Antanasijević J, Toth-Katona T, Kohout M, Salamonczyk M, Sprunt S, Jakli A, Fodor-Csorba K. Azo-containing asymmetric bent-core liquid crystals with modulated smectic phases. in RSC Advances. 2015;5(80):64886-64891.
doi:10.1039/c5ra09764a .
