New blue fluorescent sensors for metal cations and protons based on 1,8-naphthalimide
New blue fluorescent sensors for metal cations and protons based on 1,8-naphthalimide
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DOI：
10.1016/j.dyepig.2007.02.012
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发表时间：
2008
影响因子：
4.5
通讯作者：
I. Grabchev;J. Chovelon
中科院分区：
文献类型：
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作者：
I. Grabchev;J. Chovelon
发现单体1，8-萘二甲酰亚胺在乙腈中通过增强其荧光强度来响应金属阳离子（Zn 2+、Pb 2+、Cu 2+和Fe 3+）的存在;在非极性溶剂四氢呋喃中，响应可以忽略不计，无论所使用的阳离子的性质如何。当1，8-萘二甲酰亚胺与苯乙烯共聚时，随后的高Mr聚合物化学传感器选择性地对Fe 3+阳离子的加入反应。发现这种高MR传感器的荧光强度增加，在酸性介质中由于质子化的N，N-二甲氨基受体基团，这表明它可能提供潜在的可重复使用的传感器的水污染的Fe 3+阳离子和质子。
Monomeric 1,8-naphthalimide in acetonitrile was found to respond to the presence of metal cations (Zn2+, Pb2+, Cu2+and Fe3+) via enhancement of its fluorescence intensity; in the nonpolar solvent, tetrahydrofuran, the response was negligible, regardless of the nature of the cations used. When 1,8-naphthalimide was copolymerised with styrene, the ensuing high Mrpolymeric chemosensor reacted selectively to the addition of Fe3+cations. The finding that the fluorescence intensity of this high Mrsensor increased in acidic media due to protonation of the N,N-dimethylamino receptor groups, suggests that it may offer potential as a reusable sensor for water pollution by Fe3+cations and protons.