A diarylethene derivative with an aroylhydrazone unit was designed and synthesized as a colorimetric and fluorimetric dual responsive sensor for Cu²⁺ with high selectivity and rapid response. Connecting 7-diethylamino-3-hydrazide-coumarin moiety and 2-pyridyl-containg diarylethene provided an intramolecular charge transfer (ICT) system with affluent binding site (N^N^O), which was developed for the selective and sensitive detection of Cu²⁺ by dual colorimetric and fluorimetric responses. A clear Cu²⁺-induced ratiometric colorimetric sensor with color change from light yellow to orange red and on-off fluorescence with fluorescence color change from bright cyan to deep teal was constructed. At the same time, colorimetric and fluorimetric responses to Cu²⁺ were both achieved at the photostationary state. Based on the obvious color change, the sensor was used for the fabrication of test strips that can be used as the standard cards for detecting Cu²⁺. This study is expected to facilitate and broaden the application of diarylethene derivative in tracing Cu²⁺ in future work.

设计并合成了具有芳酰hydr单元的二芳基乙烯衍生物，作为比色和荧光双响应传感器，用于Cu ²⁺具有高选择性和快速响应。连接7-二乙基氨基-3-酰肼-香豆素部分和含2-吡啶基的二芳基乙烯提供了具有富集结合位点（N ^ N ^ O）的分子内电荷转移（ICT）系统，该系统开发用于选择性和灵敏地检测Cu比色和荧光双响应²⁺。构造了透明的Cu ²⁺诱导的比例比色传感器，其颜色从浅黄色变为橙红色，并且开关荧光的荧光颜色从明亮的青色变为深蓝绿色。同时，对铜的比色和荧光响应在光平稳状态下均达到²⁺。基于明显的颜色变化，该传感器用于测试条的制造，该测试条可用作检测Cu ²⁺的标准卡。预期该研究将促进和扩大二芳基乙烯衍生物在追踪Cu ²⁺的未来应用中的应用。