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Novel Techniques for Observing Structural Dynamics of Photoresponsive Liquid Crystals
Published on: May 29, 2018
Heptazine: an Electron-Deficient Fluorescent Core for Discotic Liquid Crystals
Indu Bala1, Harpreet Singh1, Venugopala Rao Battula2
1Department of Chemical Sciences, Indian Institute of Science Education and Research (IISER), Mohali, Sector-81, Knowledge city, Manauli 140306, India.
Abstract:
Herein, room-temperature discotic liquid crystals based on heptazine, an electron deficient central core, are reported for the first time. Mesomorphic behaviors of the materials are also investigated. Supramolecular assembly of the mesophase derivatives were confirmed by X-ray scattering experiments. Heptazine-based solid thin films are strong blue light emitters, whereas in the solution state, they are weakly emissive or non-emissive. The band gap energy is found to be low in this class of compounds. Formation of room-temperature mesophases, low band-gap behavior, and strong blue-light emission in the solid state are promising attributes for optoelectronic applications of the materials.
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