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Synthesis of new chiral disubstituted binaphthol derivatives and their use as the chiral dopantsстатья
Информация о цитировании статьи получена из
Scopus,
Web of Science
Дата последнего поиска статьи во внешних источниках: 12 октября 2013 г.
- Авторы: Deussen H.J., Shibaev P.V., Vinokur R.A., Schaumburg K., Bjornholm T., Bechgaard K., Shibaev V.P.
- Журнал: Materials Research Society Symposium Proceedings
- Том: 425
- Год издания: 1996
- Первая страница: 55
- Последняя страница: 60
- Аннотация: A number of new chiral binaphthol (BN) derivatives with different substituents in the 6,6′-positions in open and bridged forms have been synthesized. Their possible liquid crystalline properties and their helical twisting power (β) of three different nematic liquid crystals (LCs) were investigated. Derivatives with spatially extended substituents in the 6,6′-positions (e.g. styryl or vinyl) show unusual high helical twisting power (up to 120 μm-1). A direct correlation between the magnitude of β and the length of the substituents was found. From the different temperature dependence of β of the open and bridged BNs, a molecular model was developed relating the molecular conformation and twisting power.
- Добавил в систему: Шибаев Петр Валерьевич