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| 題名: | Reaction-based colorimetric and ratiometric fluorescence sensor for detection of cyanide in aqueous media |
| 作者: | 廖康廩;Lin, Yan-Duo;Pen, Yung-Shu;Su, Weiting;Liau, Kang-Ling;Wen, Yun-Sheng;Tu, Chin-Hsin;Sun, Chia-Hsing;Chow, Tahsin J. |
| 貢獻者: | 理學院化學學系 |
| 關鍵詞: | anions;Anions - analysis;Chemistry;chemodosimeter;Colorimetry - methods;cyanides;Cyanides - analysis;fluorescence;Models, Molecular;Sensitivity and Specificity;sensors;Spectrometry, Fluorescence - methods;Stilbenes - chemistry;Water - analysis |
| 日期: | 2012-12-01 |
| 上傳時間: | 2026-04-21 14:03:07 (UTC+8) |
| 出版者: | John Wiley and Sons Ltd;Weinheim: WILEY-VCH Verlag |
| 摘要: | 摘要： AbstractA stilbene‐based compound (1) has been prepared and was highly selective for the detection of cyanide anion in aqueous media even in the presence of other anions, such as F−, Cl−, Br−, I−, ClO4−, H2PO4−, HSO4−, NO3−, and CH3CO2−. A noticeable change in the color of the solution, along with a prominent fluorescence enhancement, was observed upon the addition of cyanide. The color change was observed upon the nucleophilic addition of the cyanide anion to the electron‐deficient cyanoacrylate group of 1. The spectral changes induced by the reaction were analyzed by comparison with two model compounds, such as compound 2 with dimethyl substituents and compound 3 without a cyanoacrylate group. An intramolecular charge‐transfer (ICT) mechanism played a key role in the sensing properties, and the mechanism was supported by DFT/TDDFT calculations.
其他題名： Chem. Asian J
出版者： Weinheim: WILEY-VCH Verlag
出版日期： 2012-12
出處： Chemistry – An Asian Journal, 2012-12, Vol.7 (12), p.2864-2871
版權： Copyright © 2012 WILEY‐VCH Verlag GmbH & Co. KGaA, Weinheim
版權： Copyright © 2012 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim.
版權： Copyright 2012 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim
識別號： ISSN: 1861-4728
識別號： ISSN: 1861-471X
識別號： EISSN: 1861-471X
識別號： DOI: 10.1002/asia.201200578
識別號： PMID: 23008232 |
| 顯示於類別: | [化學學系] 期刊論文
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