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Title: Crystal multi-conformational control through deformable carbon-sulfur bond for singlet-triplet emissive tuning
Authors: Wu, Hongwei
Chi, Weijie
Baryshnikov, Gleb
Wu, Bin
Gong, Yifan
Zheng, Dongxiao
Li, Xin
Zhao, Yanli
Liu, Xiaogang
Ågren, Hans
Zhu, Liangliang
Keywords: Science::Chemistry
Issue Date: 2019
Source: Wu, H., Chi, W., Baryshnikov, G., Wu, B., Gong, Y., Zheng, D., Li, X., Zhao, Y., Liu, X., Ågren, H. & Zhu, L. (2019). Crystal multi-conformational control through deformable carbon-sulfur bond for singlet-triplet emissive tuning. Angewandte Chemie International Edition, 58(13), 4328-4333.
Journal: Angewandte Chemie International Edition
Abstract: Crystal-state luminophores have been of great interest in optoelectronics for years, whereas the excited state regulation at the crystal level is still restricted by the lack of control ways. We report that the singlet-triplet emissive property can be profoundly regulated by crystal conformational distortions. Employing fluoro-substituted tetrakis(arylthio)benzene luminophores as prototype, we found that couples of molecular conformations formed during different crystallizations. The deformable carbon-sulphur bond essentially drove the distortion of the molecular conformation and varied the stacking mode, together with diverse non-covalent interactions, leading to the proportional adjustment of the fluorescence and phosphorescence bands. This intrinsic strategy was further applied for solid-state multicolor emissive conversion and mechanoluminescence, probably offering new insights for design of smart crystal luminescent materials.
ISSN: 1433-7851
DOI: 10.1002/anie.201900703
Rights: © 2019 Wiley-VCH Verlag GmbH & Co. KGaA, Weinheim. All rights reserved.
Fulltext Permission: none
Fulltext Availability: No Fulltext
Appears in Collections:SPMS Journal Articles

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