Please use this identifier to cite or link to this item:
Title: Design and synthesis of extended pyrene based discotic liquid crystalline dyes
Authors: Irla, Sivakumar
Pruthvi, Mahesh
Raghunathan, V.A.
Kumar, Sandeep
Issue Date: Oct-2021
Publisher: Elsevier B.V.
Citation: Dyes and Pigment, 2021, Vol. 194. p109574
Abstract: The past few years have witnessed tremendous progress towards the design of new liquid crystalline (LC) materials comprised of rigid π-conjugated molecules, particularly disc shape molecules with appropriate substitution as an active component for the electronic device applications. Herein we report a new class of polycyclic aromatic hydrocarbons (PAHs) derived from pyrene core. These molecules are synthesized with 1, 6 dibromo pyrene and di-substituted arylethynylene via palladium-catalyzed cyclopentannulation followed by Scholl reaction. LC properties of these compounds were studied using a polarizing optical microscope, differential scanning calorimetry and X-ray diffractometry. Synthesized molecules show the hexagonal columnar mesophase over a wide range of temperatures. Pyrene derivatives have been extensively explored as novel dyes and widely used in various device applications. Therefore, these novel self-assembling supramolecular materials may find application in several optoelectronic devices.
Description: Restricted Access.
ISSN: 0143-7208
Alternative Location:
Copyright: 2021 Elsevier B.V.
Appears in Collections:Research Papers (SCM)

Files in This Item:
File Description SizeFormat 
  Restricted Access
Restricted Access6.23 MBAdobe PDFView/Open Request a copy

Items in RRI Digital Repository are protected by copyright, with all rights reserved, unless otherwise indicated.