Synthesis of diarylethene derivatives containing various heterocycles and tuning of light-emitting properties in a turn-on fluorescent diarylethene system
Synthesis of diarylethene derivatives containing various heterocycles and tuning of light-emitting properties in a turn-on fluorescent diarylethene system
复制标题
含有各种杂环的二芳基乙烯衍生物的合成以及开启荧光二芳基乙烯体系中发光性能的调节
DOI：
10.1016/j.dyepig.2011.01.008
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发表时间：
2011-09-01
影响因子：
4.5
通讯作者：
Liu, Sheng Hua
中科院分区：
文献类型：
--
作者：
Li, Ziyong;Xia, Jianlong;Liu, Sheng Hua
合成了一系列新型的含不同杂环的二芳基乙烯及其N-甲基化衍生物，并用NMR对产物进行了表征。MS和元素分析每种化合物在用UV光照射时显示光致变色和“开启”荧光性质。研究发现，咪唑环上的杂环的性质和咪唑环的甲基化程度都对化合物的光学性质有很大的影响。通过改变杂环的性质或简单的结构修饰，可以很容易地将其发光性质从发蓝光荧光调谐到发黄光荧光，这为新型荧光开关的设计提供了一种新的策略。此外，Cu ~（2+）、Hg ~（2-）和Fe ~（3+）对二芳基乙烯4在光稳态下的荧光性质有很大影响，因此这些体系有可能被应用于新型分子传感器中，通过荧光识别来检测这些阳离子。(C)2011爱思唯尔有限公司保留所有权利。
A novel series of diarylethenes incorporating different heterocycles and their N-methylated derivatives have been synthesized, and the products have been characterized by means of NMR. MS and elemental analysis. Each of the compounds displays photochromism and "turn-on" fluorescence properties upon irradiation with UV light. It has been found that both the nature of the heterocycle attached to the imidazole ring and methylation of the imidazole ring greatly affect the optical properties. The light-emitting properties can be easily tuned from blue light-emitting to yellow light-emitting fluorescence by varying the nature of the heterocycle or by simple modification of structures, which provides a new strategy for the design of novel fluorescent switches. Moreover, Cu2+, Hg-2, and Fe3+ greatly affect the fluorescence properties of diarylethene 4 in the photostationary state, so that these systems might be deployed in a novel molecular sensor for the detection of such cations by fluorescence recognition. (C) 2011 Elsevier Ltd. All rights reserved.