2015年3月26日
Supermolecular bent configuration composed of achiral flexible liquid crystal trimers exhibiting chiral domains with opposite handedness
Journal of Physical Chemistry B
- ,
- ,
- ,
- 巻
- 119
- 号
- 12
- 開始ページ
- 4531
- 終了ページ
- 4538
- 記述言語
- 英語
- 掲載種別
- 研究論文(学術雑誌)
- DOI
- 10.1021/jp512710r
- 出版者・発行元
- American Chemical Society
Chirality's effects on physical properties of materials and how chirality arises have persisted as attractive issues in chemistry. We prepared a homologous series of achiral liquid crystal trimers in which three phenylpyrimidine units are connected via flexible heptamethylene spacers. An equimolecular mixture of a trimer with a nematic (N) phase and that with smectic A (SmA), smectic C (SmC), and smectic B phases was found to exhibit an N phase, a SmC phase, and a B4 phase composed of chiral domains with opposite handedness. The chiral characteristics of the B4 phase were confirmed by uncrossing the polarizers in opposite directions. XRD measurements reveal that both SmC and B4 phases have an interdigitated layer structure. That molecular interdigitation might form a supermolecular bent configuration that can produce saddle splay curvature to drive the B4 phase.
- リンク情報
- ID情報
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- DOI : 10.1021/jp512710r
- ISSN : 1520-5207
- ISSN : 1520-6106
- SCOPUS ID : 84925950045