Issue 95, 2016

The design of liquid crystalline bistolane-based materials with extremely high birefringence

Abstract

We designed three new bistolanes with alkylsulfanyl groups. A symmetric derivative contains short terminal methylsulfanyl groups (–SCH3) on both ends, while two asymmetric derivatives contain a methylsulfanyl group on one end, as well as a highly polarizable cyano (–CN) or isothiocyanate (–NCS) group on the other end. These materials exhibited a well-defined enantiotropic nematic phase, as well as an extremely high birefringence (Δn > 0.6). Most notably, the NCS derivative achieves an extremely high value of 0.77 at 550 nm. These results should be helpful for the design and synthesis of novel nematic materials with high birefringence.

Graphical abstract: The design of liquid crystalline bistolane-based materials with extremely high birefringence

Supplementary files

Article information

Article type
Paper
Submitted
31 May 2016
Accepted
20 Sep 2016
First published
22 Sep 2016
This article is Open Access
Creative Commons BY-NC license

RSC Adv., 2016,6, 92845-92851

The design of liquid crystalline bistolane-based materials with extremely high birefringence

Y. Arakawa, S. Kang, H. Tsuji, J. Watanabe and G. Konishi, RSC Adv., 2016, 6, 92845 DOI: 10.1039/C6RA14093A

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