A White-Light-Emitting Small Molecule: Synthesis, Crystal Structure, and Optical Properties

A white-light-emitting small molecule (1) was synthesized and characterized by single-crystal X-ray diffraction. Compound 1 undergoes an excited-state intramolecular proton transfer (ESIPT) reaction, resulting in a tautomer that is in equilibrium with the normal species and exhibiting a dual emissio...

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Main Authors: Sin-Kai Fang, Hsing-Yang Tsai, Jiun-Wei Hu, Kew-Yu Chen
Format: Article
Language:English
Published: Wiley 2014-01-01
Series:International Journal of Photoenergy
Online Access:http://dx.doi.org/10.1155/2014/124753
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author Sin-Kai Fang
Hsing-Yang Tsai
Jiun-Wei Hu
Kew-Yu Chen
author_facet Sin-Kai Fang
Hsing-Yang Tsai
Jiun-Wei Hu
Kew-Yu Chen
author_sort Sin-Kai Fang
collection DOAJ
description A white-light-emitting small molecule (1) was synthesized and characterized by single-crystal X-ray diffraction. Compound 1 undergoes an excited-state intramolecular proton transfer (ESIPT) reaction, resulting in a tautomer that is in equilibrium with the normal species and exhibiting a dual emission that covers almost all of the visible spectrum, and consequently generates white light. Furthermore, the geometric structures, the frontier molecular orbitals (MOs), and the potential energy curves for 1 in the ground and the first singlet excited state were fully rationalized by density functional theory (DFT) and time-dependent DFT calculations. The results show that the forward ESIPT and backward ESIPT may happen on the same timescale, enabling the excited-state equilibrium to be established.
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institution Kabale University
issn 1110-662X
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language English
publishDate 2014-01-01
publisher Wiley
record_format Article
series International Journal of Photoenergy
spelling doaj-art-fcb2889cb3d8488c9787a57b23c910ad2025-02-03T06:05:05ZengWileyInternational Journal of Photoenergy1110-662X1687-529X2014-01-01201410.1155/2014/124753124753A White-Light-Emitting Small Molecule: Synthesis, Crystal Structure, and Optical PropertiesSin-Kai Fang0Hsing-Yang Tsai1Jiun-Wei Hu2Kew-Yu Chen3Department of Chemical Engineering, Feng Chia University, 40724 Taichung, TaiwanDepartment of Chemical Engineering, Feng Chia University, 40724 Taichung, TaiwanDepartment of Chemical Engineering, Feng Chia University, 40724 Taichung, TaiwanDepartment of Chemical Engineering, Feng Chia University, 40724 Taichung, TaiwanA white-light-emitting small molecule (1) was synthesized and characterized by single-crystal X-ray diffraction. Compound 1 undergoes an excited-state intramolecular proton transfer (ESIPT) reaction, resulting in a tautomer that is in equilibrium with the normal species and exhibiting a dual emission that covers almost all of the visible spectrum, and consequently generates white light. Furthermore, the geometric structures, the frontier molecular orbitals (MOs), and the potential energy curves for 1 in the ground and the first singlet excited state were fully rationalized by density functional theory (DFT) and time-dependent DFT calculations. The results show that the forward ESIPT and backward ESIPT may happen on the same timescale, enabling the excited-state equilibrium to be established.http://dx.doi.org/10.1155/2014/124753
spellingShingle Sin-Kai Fang
Hsing-Yang Tsai
Jiun-Wei Hu
Kew-Yu Chen
A White-Light-Emitting Small Molecule: Synthesis, Crystal Structure, and Optical Properties
International Journal of Photoenergy
title A White-Light-Emitting Small Molecule: Synthesis, Crystal Structure, and Optical Properties
title_full A White-Light-Emitting Small Molecule: Synthesis, Crystal Structure, and Optical Properties
title_fullStr A White-Light-Emitting Small Molecule: Synthesis, Crystal Structure, and Optical Properties
title_full_unstemmed A White-Light-Emitting Small Molecule: Synthesis, Crystal Structure, and Optical Properties
title_short A White-Light-Emitting Small Molecule: Synthesis, Crystal Structure, and Optical Properties
title_sort white light emitting small molecule synthesis crystal structure and optical properties
url http://dx.doi.org/10.1155/2014/124753
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