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Perylo[1,12‑b,c,d] Thiophene Tetraesters: A New Class of Luminescent Columnar Liquid Crystals

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posted on 2015-07-28, 00:00 authored by Ravindra Kumar Gupta, Balaram Pradhan, Suraj Kumar Pathak, Monika Gupta, Santanu Kumar Pal, Achalkumar Ammathnadu Sudhakar
Perylo­[1,12-b,c,d] thiophene tetraesters exhibiting wide-range hexagonal columnar phase have been synthesized. These compounds also exhibit good homeotropic alignment in the liquid-crystalline phase which is very important for the device fabrication. These compounds showed sky-blue luminescence in solution under the long-wavelength UV light. With high solubility and high quantum yield these compounds can serve as standards to measure quantum yields of unknown samples. This new class of materials is promising, considering the emissive nature and stabilization of hexagonal columnar mesophase over a wide thermal range and ease of synthesis.

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