Hegde, Gurumurthy and A. R., Yuvaraj and Wan, Sinn Yam and Tze, Nee Chan and Yit, Peng Goh (2015) New Para-substituted Non-symmetric Isoflavones for their Fast Photo-switching Ability: Synthesis and their Liquid Crystal Characterization. Spectrochimica Acta Part A: Molecular and Biomolecular Spectroscopy, 135. pp. 1115-1122. ISSN 1386-1425 (print); 1873-3557 (online). (Published)
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Abstract
The first example of non-symmetric isoflavone-based fast photo-switchable liquid crystals with different functional groups at the terminal position were synthesized and characterized. Polarizing optical microscopy study revealed that the compounds showed least ordered nematic phase. Optical photo switching study exhibited very fast photoisomerization effect in solution. The E–Z and Z–E conversion occurred around 3–5 s and 40–700 s respectively. This is also the first example of para-substituted non-symmetric isoflavone liquid crystals exhibiting very fast photo switching property in solution. Argument based on non-symmetrical behaviour might be the reason for the observed behaviour.
| Item Type: | Article |
|---|---|
| Uncontrolled Keywords: | Fast photoswitching; Isoflavones; Cis-trans isomerization; Photoisomerization; Non-symmetric |
| Subjects: | Q Science > Q Science (General) Q Science > QD Chemistry |
| Faculty/Division: | Faculty of Industrial Sciences And Technology |
| Depositing User: | Mrs. Neng Sury Sulaiman |
| Date Deposited: | 26 Mar 2015 06:44 |
| Last Modified: | 28 Aug 2018 04:36 |
| URI: | http://umpir.ump.edu.my/id/eprint/8751 |
| Download Statistic: | View Download Statistics |
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