Mesomorphic properties of achiral halogen-substituted banana-shaped compounds
SCIE
SCOPUS
- Title
- Mesomorphic properties of achiral halogen-substituted banana-shaped compounds
- Authors
- Lee, CK; Kwon, SS; Zin, WC; Kim, DC; Shin, ST; Song, JH; Choi, EJ; Chien, LC
- Date Issued
- 2003-04
- Publisher
- TAYLOR & FRANCIS LTD
- Abstract
- Three banana-shaped achiral compounds, derivatives of 4,6-dichloro-1,3-phenylene bis[4-(4-n-oetyloxyphenyliminomethyl)benzoate], were synthesized by varying the substituent (X = H, F and Cl). Their mesomorphic properties were investigated by differential scanning calorimetry, polarizing optical microscopy, and X-ray analysis. The compound with X = H exhibited an enantiomeric nematic phase. The compounds with X = F and Cl formed a nematic phase on heating, while on cooling they formed a nematic phase at high temperature and a smectic A phase at a lower temperature (monotropic). A schematic representation of the mesophase structures for the compound with X = F is also illustrated.
- Keywords
- SMECTIC LIQUID-CRYSTALS; BENT-CORE MESOGENS; MOLECULES; PHASE; HELIX
- URI
- https://oasis.postech.ac.kr/handle/2014.oak/29722
- DOI
- 10.1080/0267829031000083759
- ISSN
- 0267-8292
- Article Type
- Article
- Citation
- LIQUID CRYSTALS, vol. 30, no. 4, page. 415 - 421, 2003-04
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- There are no files associated with this item.
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