Novel V- and Y-Shaped Light-Emitting Liquid Crystals with Pentafluorinated Bistolane-Based Luminophores.

ABSTRACT: Herein, we describe the synthesis of novel light-emitting liquid-crystalline (LC) compounds bearing pentafluorinated bistolane-based luminophores with a V- or a Y-shaped molecular geometry and the evaluation of their LC and photophysical characteristics. The V- or Y-shaped compounds exhibited a unique LC phase and showed photoluminescence (PL) behavior under various circumstances, such as in dilute solution or in the solid state. Notably, PL characteristics were observed even under high-temperature conditions with a crystal (Cr) to LC phase transition, although the PL efficiency (Φ _PL) was gradually reduced because of thermal molecular motion. Interestingly, Φ _PL was found to be completely recovered through the LC → Cr phase transition during the cooling

SUBMITTER: Yamada S 

PROVIDER: S-EPMC6649111 | biostudies-literature | 2019 Feb

REPOSITORIES: biostudies-literature