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- Title
Photoelectric and Self-Assembly Properties of Tetrasubstituted Pyrene Discotic Derivatives.
- Authors
Zhao, Yuzhen; Yu, Yang; Zhao, Xiangrong; Zhao, Yang; Guo, Zhun; Zhang, Huimin; Yao, Ruijuan; Ji, Xinyu; Wang, Dong
- Abstract
To investigate the self-assembly behavior of π-conjugated ethynyl-pyrene discotic derivatives, a series of ethynyl-pyrene discotic materials were designed and synthesized by Sonogashira coupling reaction. The π-conjugated structures were characterized by 1H-NMR, IR spectroscopy, and elemental analysis. The optical properties of the discotic materials were examined by UV/Vis spectra and fluorescence emission spectra. The band gap of each compound was calculated by cyclic voltammetry with UV/Vis spectroscopy. Interestingly, the substituted groups in the four symmetrical positions did affect the self-assembly properties of as-resulted nano/micro structures. Under the same conditions, compounds 4a–4d could be self-assembled into different morphologies such as micro-tubes (for 4a), micro-wires (for 4b and 4c), and micro-grain crystals (for 4d). All of the results indicated that the discotic materials have the potential for optoelectronic applications.
- Subjects
PYRENE derivatives; FLUORESCENCE spectroscopy; SONOGASHIRA reaction; BAND gaps; OPTICAL properties; OPTOELECTRONIC devices
- Publication
Molecules, 2022, Vol 27, Issue 21, p7559
- ISSN
1420-3049
- Publication type
Article
- DOI
10.3390/molecules27217559