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Title: Pyrene-based color-tunable dipolar molecules: Synthesis, characterization and optical properties
Authors: Wang, Chuan-Zeng
Feng, Xing
Kowser, Zannatul
Wu, Chong
Akther, Thamina
Elsegood, Mark R.J.
Redshaw, Carl
Yamato, Takehiko
Keywords: Regioselective synthesis
Pyrene chemistry
K-region
Tunable emission
Dipolar molecules
Issue Date: 2018
Publisher: © Elsevier
Citation: WANG, C-Z. ...et al., 2018. Pyrene-based color-tunable dipolar molecules: Synthesis, characterization and optical properties. Dyes and Pigments, 153, pp. 125-131.
Abstract: © 2018 Elsevier Ltd A controllable regioselective approach to achieve dipolar functionalization at the active sites (1,3-positions) and K-region (5,9-positions) of pyrene is demonstrated. Following this strategy, a set of dipolar 1,3-diphenyl-5,9-di(4-R-phenylethynyl)pyrenes were synthesized and systematically investigated by 1 H/ 13 C NMR spectroscopy, X-ray crystallography, electronic spectra, as well as by theoretical calculations. By adjusting the substituents at the 5,9-positions of pyrene, the pyrene-based dipolar molecules 4 (H, F, OMe, CN, CHO, NMe 2 ) exhibit tunable optical properties with a wide emission band from blue (437 nm) to orange-red (571 nm).
Description: this work is in closed access until 6th Jan 2019.
Sponsor: This work was performed under the Cooperative Research Program of “Network Joint Research Center for Materials and Devices (Institute for Materials Chemistry and Engineering, Kyushu University)”. We would like to thank the National Science Foundation of China (No. 21602014), Fund Program for the Scientific Activities of Selected Returned Overseas Professionals of Beijing, the OTEC at Saga University and the International Cooperation Projects of Guizhou Province (No. 20137002), the Royal Society of Chemistry for financial support, and the EPSRC for an overseas travel grant to C.R.
Version: Accepted for publication
DOI: 10.1016/j.dyepig.2018.01.003
URI: https://dspace.lboro.ac.uk/2134/32670
Publisher Link: https://doi.org/10.1016/j.dyepig.2018.01.003
ISSN: 0143-7208
Appears in Collections:Closed Access (Chemistry)

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