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首页> 外文期刊>Crystal growth & design >Molecular Association-Induced Emission Shifts for E/Z Isomers and Selective Sensing of Nitroaromatic Explosives
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Molecular Association-Induced Emission Shifts for E/Z Isomers and Selective Sensing of Nitroaromatic Explosives

机译：用于E / Z异构体的分子结合诱导的发射移位和硝基芳族炸药的选择性感测

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摘要

Two 1,2-disubstituted tetraphenylethene E/Z isomers, each containing two cyano functional groups, were successfully synthesized and characterized. Unlike conventional tetraphenylethene molecules, the two isomers possess unique aggregation induced emission red-shift and enhancement behavior. Interestingly, the crystalline solids of these two isomers show distinct emission maxima, which are more than 50 nm apart from each other. These two isomers can selectively detect nitroaromatics, showing a quenching efficiency of picric acid more than 100 times higher than other nitroaromatics. The structural characterization, absorption, and emission in solutions as well as DFT calculations were conducted to help us gain deep insights into the chemistry of these species.
机译：两种1,2-二取代的四苯基乙二乙烯E / Z异构体，每种含有两个氰基官能团，被成功地合成并表征。 与常规的四苯基乙烯分子不同，两种异构体具有独特的聚集诱导的发射红移和增强行为。 有趣的是，这两种异构体的结晶固体显示出不同的发射最大值，它们彼此分开超过50nm。 这两种异构体可以选择性地检测硝基甲骨，显示比其他硝基甲族的静脉酸的淬火效率超过100倍。 进行了解决方案的结构表征，吸收和排放以及DFT计算，以帮助我们深入了解这些物种的化学性。

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