| Naphthalimide as Highly Selective Fluorescent Sensor for Ag^＋ Ions |
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| 引用本文： | 许胜,李伟,陈孔常.Naphthalimide as Highly Selective Fluorescent Sensor for Ag^＋ Ions[J].中国化学,2007,25(6):778-783. |
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| 作者姓名： | 许胜 李伟 陈孔常 |
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| 作者单位： | Laboratory for Advanced Materials and Institute of Fine Chemicals, East China University of Science ＆ Technology, Shanghai 200237, China |
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| 基金项目： | Project supported by the National Natural Science Foundation of China （No. 90401026） and the Foundation of Scientific Committee of Shanghai. |
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| 摘 要： | The naphthalimide derivative. NA1 was synthesized, which consists of a bis（2-（ethylthio）ethyl）amine group binding cations and naphthalimide unit as chromogenic and fluorogenic signaling subunit. Absorption and emission spectra and the effect of polarity of solvents and pH values were studied. The photo-induced electron transfer （PET） occurred from the donor of bis（2-（ethylthio）ethyl）amine group to the naphthalimide fluorophore. The present study demonstrates that NA1 is a viable candidate as a fluorescent receptor for a new Ag^＋ ion sensor. This silver ion chemosensor can discriminate Ag^＋ ion well among heavy metal ions by an enhancement of the fluorescence intensity in ethanol-water （1 ： 9, V ： V）. And NA1 is also a pH-sensor because the fluorescence of the compound varies with the pH values.
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| 关 键 词： | 萘二甲酰亚胺 银离子 选择性荧光化学传感器 光诱导电子传递 |
| 修稿时间： | 2006-04-102007-02-04 |
Naphthalimide as Highly Selective Fluorescent Sensor for Ag^＋ Ions |
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| XU, Sheng LI, Wei CHEN, Kong-Chang.Naphthalimide as Highly Selective Fluorescent Sensor for Ag^＋ Ions[J].Chinese Journal of Chemistry,2007,25(6):778-783. |
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| Authors: | XU Sheng LI Wei CHEN Kong-Chang |
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| Institution: | [1]Laboratory for Advanced Materials and Institute of Fine Chemicals, East China University of Science & Technology, Shanghai 200237, China |
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| Abstract: | The naphthalimide derivative NA1 was synthesized, which consists of a bis(2‐(ethylthio)ethyl)amine group binding cations and naphthalimide unit as chromogenic and fluorogenic signaling subunit. Absorption and emission spectra and the effect of polarity of solvents and pH values were studied. The photo‐induced electron transfer (PET) occurred from the donor of bis(2‐(ethylthio)ethyl)amine group to the naphthalimide fluorophore. The present study demonstrates that NA1 is a viable candidate as a fluorescent receptor for a new Ag+ ion sensor. This silver ion chemosensor can discriminate Ag+ ion well among heavy metal ions by an enhancement of the fluorescence intensity in ethanol‐water (1:9, V:V). And NA1 is also a pH‐sensor because the fluorescence of the compound varies with the pH values. |
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| Keywords: | fluorescent chemosensor naphthalimide photo-induced electron transfer silver ion |
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