Published September 12, 2019
| Version Accepted Manuscript
Journal article
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An unusual plank-shaped nematogen with a graphenenanoribbon core
Creators
- 1. Universidade Federal de Santa Catarina 88040-900 Florianópolis, SC, Brazil
- 2. Universidade Tecnológica Federal do Paraná, 86036-370 Londrina, PR, Brazil
- 3. Centre de Recherche Paul Pascal, CNRS & Université de Bordeaux, 115, av. Schweitzer, 33600 Pessac, France
- 4. Durham University, South Road, Durham, DH1 3LE, U.K..
Description
A [12]phenacene exclusively decorated with four lateral hexylester substituents self-assembles into a nematic liquid crystal glass on cooling after melting at high temperature. This uniaxial nematic organization of a plank-shaped nanographene is unprecedented and in strong contrast to the common design rules for liquid crystals. Highly birefringent samples emitting polarized fluorescence can be obtained in homogeneously planar or twisted waveguiding configurations that are stable against crystallization at and below room temperature and up to 100°C.
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