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http://hdl.handle.net/2289/7828| 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. |
| URI: | http://hdl.handle.net/2289/7828 |
| ISSN: | 0143-7208 |
| Alternative Location: | https://doi.org/10.1016/j.dyepig.2021.109574 |
| Copyright: | 2021 Elsevier B.V. |
| Appears in Collections: | Research Papers (SCM) |
Files in This Item:
| File | Description | Size | Format | |
|---|---|---|---|---|
| 2021_DP_Vol.194_p109574.pdf Restricted Access | Restricted Access | 6.23 MB | Adobe PDF | View/Open Request a copy |
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