Thiophene-fused polyaromatics: synthesis, columnar liquid crystal, fluorescence and electrochemical properties
Name
d0sc00714e.pdf
Description
Published version
Size
782.98 KB
Format
Adobe PDF
Checksum (MD5)
ed98ed68f0da64ca2634912c01f28ab5
Author(s)
Li, Yifan
Concellon Allueva, Alberto
Lin, Che-Jen
Romero, Nathan A.
Lin, Sibo
Swager, Timothy M
Date Issued
April 2020
Journal
Chemical Science
Publisher
Royal Society of Chemistry (RSC)
Citation
Li, Yifan et al. "Thiophene-fused polyaromatics: synthesis, columnar liquid crystal, fluorescence and electrochemical properties." Chemical Science 11, 18 (April 2020): 4695 © The Royal Society of Chemistry.
Version
Final published version
Abstract
Efficient syntheses that incorporate thiophene units into different extended conjugation systems are of interest as a result of the prevalence of sulfur-rich aromatics in organic electronics. Self-organization by using liquid crystal properties is also desirable for optimal processing of organic electronics and optical devices. In this article, we describe a two-step process to access extended regioisomers of polyaromatics with different shapes. This method involves an efficient single or double benzannulation from an alkyne precursor followed by Scholl cyclization. In spite of their unconventional nondiscoid shape, these materials display stable columnar liquid crystal phases. We examine the photophysical and electrochemical properties and find that structurally very similar thiophene-fused polyaromatics display significant differences in their properties.
MIT Department
Massachusetts Institute of Technology. Department of Chemistry
Terms of Use
Creative Commons Attribution Noncommercial 3.0 unported license
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DOI of Published Version
https://doi.org/10.1039/d0sc00714e
