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タイトル: | Acid-Responsive Absorption and Emission of 5-N-Arylaminothiazoles: Emission of White Light from a Single Fluorescent Dye and a Lewis Acid |
著者: | Yamaguchi, Kirara Murai, Toshiaki Guo, Jing-Dong Sasamori, Takahiro Tokitoh, Norihiro https://orcid.org/0000-0003-1083-7245 (unconfirmed) |
著者名の別形: | 時任, 宣博 笹森, 貴裕 |
キーワード: | 5-aminothiazoles absorption fluorescent dyes Lewis acids and bases white-light emission |
発行日: | Oct-2016 |
出版者: | Wiley |
誌名: | ChemistryOpen |
巻: | 5 |
号: | 5 |
開始ページ: | 434 |
終了ページ: | 438 |
抄録: | Solutions of 5-N-arylaminothiazoles containing pyridyl groups exhibited clear halochromism and halofluorism upon addition of Brønsted and Lewis acids. The addition of triflic acid to solutions of 5-N-arylaminothiazoles in Et2O induced bathochromic shifts of the absorption and emission bands. DFT calculations suggested that the spectral changes arise from the protonation of the pyridyl group of the thiazoles in Et2O. Single-crystal X-ray diffraction analysis of a thiazole and its protonated form revealed the change of the conformation around the thiazole ring. The emission of white light was accomplished from a single fluorescent dye by adjusting the ratio of dye and B(C6F5)3, whereby the International Commission on Illumination coordinates showed a linear change from blue to orange. |
著作権等: | © 2016 The Authors. Published by Wiley-VCH Verlag GmbH & Co. KGaA. This is an open access article under the terms of the Creative Commons Attribution-NonCommercial License, which permits use, distribution and reproduction in any medium, provided the original work is properly cited and is not used for commercial purposes. |
URI: | http://hdl.handle.net/2433/218646 |
DOI(出版社版): | 10.1002/open.201600059 |
PubMed ID: | 27777834 |
出現コレクション: | 学術雑誌掲載論文等 |
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