Pyrene-based D–π–A dyes that exhibit solvatochromism and high fluorescence brightness in apolar solvents and water
Pyrene-based D–π–A dyes that exhibit solvatochromism and high fluorescence brightness in apolar solvents and water
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DOI：
10.1039/c4ra06282e
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发表时间：
2014-08
期刊：
影响因子：
3.9
通讯作者：
Y. Niko;Yokan Cho;S. Kawauchi;G. Konishi
中科院分区：
文献类型：
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作者：
Y. Niko;Yokan Cho;S. Kawauchi;G. Konishi
合成了一种由哌啶（D）和仲N-烷基甲酰胺（A）组成的新型芘基D-π-A染料。该染料在包括水在内的各种极性的溶剂中表现出溶剂化显色性和明亮的荧光。这样的发射特性源自仲N-烷基甲酰胺基团作为羰基上的n电子的弱受体和稳定剂的作用。
A novel pyrene-based D–π–A dye consisting of piperidine (D) and a secondary N-alkyl carboxamide (A) was prepared. This dye showed solvatochromism and bright fluorescence in solvents with a wide range of polarities, including water. Such emission properties are derived from the role of the secondary N-alkyl carboxamide group as both a weak acceptor and a stabilizer of the n electrons on the carbonyl group.