Synthesis of Banana-Shaped Liquid Crystals for Photoswitching Properties

Three banana-shaped monomers containing naphthalene as central units and azobenzene in side arms with terminal alkenes were synthesized and characterized. DSC, polarizing optical microscopy, and X-ray diffraction measurements prove that all compounds exhibit B6 phase. The trans-azobenzene showed hig...

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Main Authors:	Lutfor, M. R., M. M., Yusoff, Hegde, Gurumurthy, Muhammad Nor Fazli, Abd Malek, Nurlin, Abu Samah, H. T., Srinivasa
Format:	Article
Language:	English
Published:	Taylor & Francis 2013
Subjects:	Q Science (General)
Online Access:	http://umpir.ump.edu.my/id/eprint/7480/ http://umpir.ump.edu.my/id/eprint/7480/ http://umpir.ump.edu.my/id/eprint/7480/ http://umpir.ump.edu.my/id/eprint/7480/1/Synthesis_of_Banana-Shaped_Liquid_Crystals_for_Photoswitching_Properties.pdf

id	ump-7480
recordtype	eprints
spelling	ump-74802018-02-07T08:04:40Z http://umpir.ump.edu.my/id/eprint/7480/ Synthesis of Banana-Shaped Liquid Crystals for Photoswitching Properties Lutfor, M. R. M. M., Yusoff Hegde, Gurumurthy Muhammad Nor Fazli, Abd Malek Nurlin, Abu Samah H. T., Srinivasa Q Science (General) Three banana-shaped monomers containing naphthalene as central units and azobenzene in side arms with terminal alkenes were synthesized and characterized. DSC, polarizing optical microscopy, and X-ray diffraction measurements prove that all compounds exhibit B6 phase. The trans-azobenzene showed high-intensity π–π∗ transition at about 365 nm and low-intensity n–π∗ transition at about 450 nm. The strong hotoisomerizationbehavior in solutions of the molecules displayed that trans to cis isomerization takes 45 sec whereas reverse process takes about 28 h and 30 min. This long thermal back relaxation is useful for creation of optical image storage. Taylor & Francis 2013 Article PeerReviewed application/pdf en http://umpir.ump.edu.my/id/eprint/7480/1/Synthesis_of_Banana-Shaped_Liquid_Crystals_for_Photoswitching_Properties.pdf Lutfor, M. R. and M. M., Yusoff and Hegde, Gurumurthy and Muhammad Nor Fazli, Abd Malek and Nurlin, Abu Samah and H. T., Srinivasa (2013) Synthesis of Banana-Shaped Liquid Crystals for Photoswitching Properties. Molecular Crystals and Liquid Crystals, 587. pp. 41-53. ISSN 1542-1406 (print); 1563-5287 (online) http://dx.doi.org/10.1080/15421406.2013.807204 DOI: 10.1080/15421406.2013.807204
repository_type	Digital Repository
institution_category	Local University
institution	Universiti Malaysia Pahang
building	UMP Institutional Repository
collection	Online Access
language	English
topic	Q Science (General)
spellingShingle	Q Science (General) Lutfor, M. R. M. M., Yusoff Hegde, Gurumurthy Muhammad Nor Fazli, Abd Malek Nurlin, Abu Samah H. T., Srinivasa Synthesis of Banana-Shaped Liquid Crystals for Photoswitching Properties
description	Three banana-shaped monomers containing naphthalene as central units and azobenzene in side arms with terminal alkenes were synthesized and characterized. DSC, polarizing optical microscopy, and X-ray diffraction measurements prove that all compounds exhibit B6 phase. The trans-azobenzene showed high-intensity π–π∗ transition at about 365 nm and low-intensity n–π∗ transition at about 450 nm. The strong hotoisomerizationbehavior in solutions of the molecules displayed that trans to cis isomerization takes 45 sec whereas reverse process takes about 28 h and 30 min. This long thermal back relaxation is useful for creation of optical image storage.
format	Article
author	Lutfor, M. R. M. M., Yusoff Hegde, Gurumurthy Muhammad Nor Fazli, Abd Malek Nurlin, Abu Samah H. T., Srinivasa
author_facet	Lutfor, M. R. M. M., Yusoff Hegde, Gurumurthy Muhammad Nor Fazli, Abd Malek Nurlin, Abu Samah H. T., Srinivasa
author_sort	Lutfor, M. R.
title	Synthesis of Banana-Shaped Liquid Crystals for Photoswitching Properties
title_short	Synthesis of Banana-Shaped Liquid Crystals for Photoswitching Properties
title_full	Synthesis of Banana-Shaped Liquid Crystals for Photoswitching Properties
title_fullStr	Synthesis of Banana-Shaped Liquid Crystals for Photoswitching Properties
title_full_unstemmed	Synthesis of Banana-Shaped Liquid Crystals for Photoswitching Properties
title_sort	synthesis of banana-shaped liquid crystals for photoswitching properties
publisher	Taylor & Francis
publishDate	2013
url	http://umpir.ump.edu.my/id/eprint/7480/ http://umpir.ump.edu.my/id/eprint/7480/ http://umpir.ump.edu.my/id/eprint/7480/ http://umpir.ump.edu.my/id/eprint/7480/1/Synthesis_of_Banana-Shaped_Liquid_Crystals_for_Photoswitching_Properties.pdf
first_indexed	2023-09-18T22:04:07Z
last_indexed	2023-09-18T22:04:07Z
_version_	1777414593226735616

Synthesis of Banana-Shaped Liquid Crystals for Photoswitching Properties

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