2005年
Novel chiral filament in an achiral W-shaped liquid crystalline compound
JOURNAL OF MATERIALS CHEMISTRY
- ,
- ,
- ,
- ,
- ,
- 巻
- 15
- 号
- 44
- 開始ページ
- 4688
- 終了ページ
- 4694
- 記述言語
- 英語
- 掲載種別
- DOI
- 10.1039/b509213b
- 出版者・発行元
- ROYAL SOC CHEMISTRY
Anomalous optical birefringence and optical rotation have been observed in a liquid crystal phase comprising of W-shaped liquid crystal molecules with hydrogen bonds. The texture of this phase exhibits characteristic chiral filaments, which form strongly segregated chiral domains similar to the B4 phase of conventional bent-core mesogens, despite of having no chiral carbon. Based on X-ray microbeam diffraction, polarizing and confocal optical microscope observations, the molecular arrangement in the filament is discussed, and the novel structure different from that in B4 is proposed; the smectic layers form concentric cylinder, on which the c-director of the W- shaped molecules form screw-like and/or polar arrangement, inducing herringbone anisotropic structure and chirality in each filament, as observed in the experiments.
- リンク情報
- ID情報
-
- DOI : 10.1039/b509213b
- ISSN : 0959-9428
- CiNii Articles ID : 80017636891
- Web of Science ID : WOS:000233138100003