Synthesis and liquid crystalline behaviour of substituted (E)-phenyl-4-(phenyldiazenyl) benzoate derivatives and their photo switching ability
Azobenzene derivatives containing phenyl/4-halogen-phenyl 4-{(E)-[4-(pent-4-en-1-yloxy)phenyl] diazenyl}benzoate group with different electronegative substituent (H, F, Cl, Br and I) at other end was synthesised. These azo-based benzoate derivatives have been characterised by FTIR, 1H-NMR, 13C-NMR...
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| Language: | English English |
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Taylor & Francis
2016
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| Online Access: | http://irep.iium.edu.my/51064/ http://irep.iium.edu.my/51064/ http://irep.iium.edu.my/51064/ http://irep.iium.edu.my/51064/1/LIQUID_CRYSTAL.pdf http://irep.iium.edu.my/51064/4/51064_Synthesis%20and%20liquid%20crystalline%20behaviour_Scopus.pdf |
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iium-510642017-03-20T07:47:00Z http://irep.iium.edu.my/51064/ Synthesis and liquid crystalline behaviour of substituted (E)-phenyl-4-(phenyldiazenyl) benzoate derivatives and their photo switching ability Hegde, Gurumurthy Shanker, Govindaswamy Gan, S. M. Yuvaraj, A. R. Mahmood, Syed Mandal, Uttam Kumar RS Pharmacy and materia medica Azobenzene derivatives containing phenyl/4-halogen-phenyl 4-{(E)-[4-(pent-4-en-1-yloxy)phenyl] diazenyl}benzoate group with different electronegative substituent (H, F, Cl, Br and I) at other end was synthesised. These azo-based benzoate derivatives have been characterised by FTIR, 1H-NMR, 13C-NMR, elemental analyser, POM and UV-Vis spectroscopy. Photosaturation at 358 nm obtained after 82 s of UV irradiation and the longest thermal back relaxation time of 45 h recorded by UVVis. The azo derivative could be possible photolock under UV light, as observed by the improved thermal back relaxation time. The resulting photolockable chain of azobenzene might prove valuable in the development of optical device application. These azobenzene moieties also exhibit liquid crystalline behaviour with respect to the halogen substitution as an electron withdrawing group shows that strong structure property relationship exists among them. Taylor & Francis 2016 Article PeerReviewed application/pdf en http://irep.iium.edu.my/51064/1/LIQUID_CRYSTAL.pdf application/pdf en http://irep.iium.edu.my/51064/4/51064_Synthesis%20and%20liquid%20crystalline%20behaviour_Scopus.pdf Hegde, Gurumurthy and Shanker, Govindaswamy and Gan, S. M. and Yuvaraj, A. R. and Mahmood, Syed and Mandal, Uttam Kumar (2016) Synthesis and liquid crystalline behaviour of substituted (E)-phenyl-4-(phenyldiazenyl) benzoate derivatives and their photo switching ability. Liquid Crystals, 43 (11). pp. 1-11. ISSN 0267-8292 E-ISSN 1366-5855 http://www.tandfonline.com/doi/abs/10.1080/02678292.2016.1189001 10.1080/02678292.2016.1189001 |
| repository_type |
Digital Repository |
| institution_category |
Local University |
| institution |
International Islamic University Malaysia |
| building |
IIUM Repository |
| collection |
Online Access |
| language |
English English |
| topic |
RS Pharmacy and materia medica |
| spellingShingle |
RS Pharmacy and materia medica Hegde, Gurumurthy Shanker, Govindaswamy Gan, S. M. Yuvaraj, A. R. Mahmood, Syed Mandal, Uttam Kumar Synthesis and liquid crystalline behaviour of substituted (E)-phenyl-4-(phenyldiazenyl) benzoate derivatives and their photo switching ability |
| description |
Azobenzene derivatives containing phenyl/4-halogen-phenyl 4-{(E)-[4-(pent-4-en-1-yloxy)phenyl]
diazenyl}benzoate group with different electronegative substituent (H, F, Cl, Br and I) at other end
was synthesised. These azo-based benzoate derivatives have been characterised by FTIR, 1H-NMR, 13C-NMR, elemental analyser, POM and UV-Vis spectroscopy. Photosaturation at 358 nm obtained after 82 s of UV irradiation and the longest thermal back relaxation time of 45 h recorded by UVVis. The azo derivative could be possible photolock under UV light, as observed by the improved thermal back relaxation time. The resulting photolockable chain of azobenzene might prove valuable in the development of optical device application. These azobenzene moieties also exhibit liquid crystalline behaviour with respect to the halogen substitution as an electron withdrawing group shows that strong structure property relationship exists among them. |
| format |
Article |
| author |
Hegde, Gurumurthy Shanker, Govindaswamy Gan, S. M. Yuvaraj, A. R. Mahmood, Syed Mandal, Uttam Kumar |
| author_facet |
Hegde, Gurumurthy Shanker, Govindaswamy Gan, S. M. Yuvaraj, A. R. Mahmood, Syed Mandal, Uttam Kumar |
| author_sort |
Hegde, Gurumurthy |
| title |
Synthesis and liquid crystalline behaviour of
substituted (E)-phenyl-4-(phenyldiazenyl) benzoate
derivatives and their photo switching ability |
| title_short |
Synthesis and liquid crystalline behaviour of
substituted (E)-phenyl-4-(phenyldiazenyl) benzoate
derivatives and their photo switching ability |
| title_full |
Synthesis and liquid crystalline behaviour of
substituted (E)-phenyl-4-(phenyldiazenyl) benzoate
derivatives and their photo switching ability |
| title_fullStr |
Synthesis and liquid crystalline behaviour of
substituted (E)-phenyl-4-(phenyldiazenyl) benzoate
derivatives and their photo switching ability |
| title_full_unstemmed |
Synthesis and liquid crystalline behaviour of
substituted (E)-phenyl-4-(phenyldiazenyl) benzoate
derivatives and their photo switching ability |
| title_sort |
synthesis and liquid crystalline behaviour of
substituted (e)-phenyl-4-(phenyldiazenyl) benzoate
derivatives and their photo switching ability |
| publisher |
Taylor & Francis |
| publishDate |
2016 |
| url |
http://irep.iium.edu.my/51064/ http://irep.iium.edu.my/51064/ http://irep.iium.edu.my/51064/ http://irep.iium.edu.my/51064/1/LIQUID_CRYSTAL.pdf http://irep.iium.edu.my/51064/4/51064_Synthesis%20and%20liquid%20crystalline%20behaviour_Scopus.pdf |
| first_indexed |
2023-09-18T21:12:14Z |
| last_indexed |
2023-09-18T21:12:14Z |
| _version_ |
1777411329617821696 |