EventsThe 9th International Electronic Conference on Synthetic Organic Chemistry
Event submissions
Published
with-doi10.3390/ecsoc-9-01461
This submission belongs to the session a. General Organic Synthesis of the event The 9th International Electronic Conference on Synthetic Organic Chemistry
Published date
01 Nov, 2005
Citation
Fu-Jing Yuan, Bi-Qin Wang, Ping Hu, Ke-Qing Zhao, Synthesis and Mesomorphism of Novel Triphenylene-Based Discotic Liquid Crystals with Chiral Peripheral Chains, in Proceedings of The 9th International Electronic Conference on Synthetic Organic Chemistry, 1 November–30 November 2005, MDPI: Basel, Switzerland, doi: 10.3390/ecsoc-9-01461
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Synthesis and Mesomorphism of Novel Triphenylene-Based Discotic Liquid Crystals with Chiral Peripheral Chains

Fu-Jing Yuan 1
Bi-Qin Wang 1
Ping Hu 1
Ke-Qing Zhao 1
1. College of Chemistry and Material Science, Sichuan Normal University, Chengdu, 610066, Sichuan, China
Abstract
Symmetrical and asymmetrical triphenylene-based discotic liquid crystals with mixed ether-ester peripheral chains, the ester ones with a chiral carbon [ abbreviated as sym-TP(OCnH2n+1)3(OOCC*HClCH2CHMe2)3 and asym-TP(OCnH2n+1)3(OOCC*HClCH2CHMe2)3, n = 4 ~ 8，11 ] were synthesized. The phase transition temperature and the liquid crystal states were determined with polarized optical microscopy (POM) and differential scanning calorimetry (DSC). It was found that the symmetrical isomers have lower clearing points. Some of the discogens show as many as three kinds of columnar mesophases.
Keywords
triphenylene
discotic liquid crystal
columnar mesophase
chirality
polymesomorphism
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