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Title: Multiple photoluminescence from pyrene-fused hexaarylbenzenes with aggregation enhanced emission features
Authors: Wang, Chuan-Zeng
Noda, Yuki
Wu, Chong
Feng, Xing
Venkatesan, Perumal
Cong, Hang
Elsegood, Mark R.J.
Warwick, Thomas G.
Teat, Simon J.
Redshaw, Carl
Yamato, Takehiko
Keywords: Multiple photoluminescence
Hexaarylbenzenes
Pyrene chemistry
Anti/Syn conformations
Aggregation enhanced emission
Issue Date: 2018
Publisher: © Wiley
Citation: WANG, C.-Z. ... et al, 2018. Multiple photoluminescence from pyrene-fused hexaarylbenzenes with aggregation enhanced emission features. Asian Journal of Organic Chemistry, 7(2), pp. 444–450.
Abstract: Multiple photoluminescence, involved in monomer emission, excimer emission and charge transfer emission origin from new pyrene-fused hexaarylbenzenes (HAB) compounds were observed, which were designed and synthesized (in high yield) via the Diels-Alder reaction of bis(2-tert-butylpyren-6-yl)acetylene and tetraphenylcyclopentadienone. Although the distinction of between two molecules arises only from the geometrical position of one of the pyrenes, the NMR spectra, the crystal packing and the physicochemical properties of these pyrene-based HAB hybrids are distinctly different both in their solution state and in aggregation-state. The X-ray diffraction analysis clearly indicated that the pyrene moieties in this system would form different crystal packing in crystal state that can induce a fantastic multiple photoluminescence phenomenon.
Description: This paper is closed access until 22nd December 2018.
Sponsor: 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) for financial support and the EPSRC for an overseas travel grant to C.R.
Version: Accepted for publication
DOI: 10.1002/ajoc.201700563
URI: https://dspace.lboro.ac.uk/2134/27961
Publisher Link: https://doi.org/10.1002/ajoc.201700563
ISSN: 2193-5807
Appears in Collections:Closed Access (Chemistry)

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