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An unusual plank-shaped nematogen with a graphene nanoribbon core.

Farias, Giliandro and Simeão, David S. and Moreira, Thamires S. and dos Santos, Paloma L. and Bentaleb, Ahmed and Girotto, Edivandro and Monkman, Andrew P. and Eccher, Juliana and Durola, Fabien and Bock, Harald and de Souza, Bernardo and Bechtold, Ivan H. (2019) 'An unusual plank-shaped nematogen with a graphene nanoribbon core.', Journal of materials chemistry C., 7 (39). pp. 12080-12085.


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.

Item Type:Article
Full text:(AM) Accepted Manuscript
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Full text:(AM) Accepted Manuscript
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Date accepted:11 September 2019
Date deposited:03 November 2019
Date of first online publication:12 September 2019
Date first made open access:11 September 2020

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