title: Perylo[1,12-b,c,d] Thiophene Tetraesters: A New Class of Luminescent Columnar Liquid Crystals.
abstract: 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.
authors.affiliation: †Department of Chemistry, Indian Institute of Technology Guwahati, Guwahati 781039, Assam, India.
authors.forename: Ravindra Kumar
authors.initials: RK
authors.lastname: Gupta
authors.affiliation: †Department of Chemistry, Indian Institute of Technology Guwahati, Guwahati 781039, Assam, India.
authors.forename: Balaram
authors.initials: B
authors.lastname: Pradhan
authors.affiliation: †Department of Chemistry, Indian Institute of Technology Guwahati, Guwahati 781039, Assam, India.
authors.forename: Suraj Kumar
authors.initials: SK
authors.lastname: Pathak
authors.affiliation: ‡Indian Institute of Science Education and Research, Mohali, Sector-81, Knowledge City, Manauli 140306, Punjab, India.
authors.forename: Monika
authors.initials: M
authors.lastname: Gupta
authors.affiliation: ‡Indian Institute of Science Education and Research, Mohali, Sector-81, Knowledge City, Manauli 140306, Punjab, India.
authors.forename: Santanu Kumar
authors.initials: SK
authors.lastname: Pal
authors.affiliation: †Department of Chemistry, Indian Institute of Technology Guwahati, Guwahati 781039, Assam, India.
authors.forename: Achalkumar Ammathnadu
authors.initials: AA
authors.lastname: Sudhakar