A colorimetric quinoline-based chemosensor for sequential detection of copper ion and cyanide anions

作者：Wu, Chenjun; Wang, Jianbo^*; Shen, Jinjin; Zhang, Chenyu; Wu, Zuoyi; Zhou, Hongwei^*

来源：Tetrahedron, 2017, 73(38): 5715-5719.

DOI：10.1016/j.tet.2017.08.010

• Quinoline derivatives
• Copper ion
• Naked-eye sensor
• Colorimetric
• Sequential detection

A new quinoline-based chemosensor (CQ) for sequential detection of Cu2+ and CN- has been synthesized, where diaminomaleonitrile is introduced as recognition group. After addition of Cu2+, sensor CQ in aqueous solution (DMSO/H2O) displays remarkable colorimetric change from the light yellow to red, which is attributed to the extended intermolecular charge transfer in CQ-Cu(2+)complex. Sensor CQ shows a highly selective and sensitive response to Cu2+, which can be used as Test strips to conveniently monitor Cu2+. In addition, CQ-Cu(2+)complex could be applied to monitor sequentially cyanide anion with dramatic colour change based on copper ion complex displacement mechanism.

• 出版日期2017-9-21
• 单位嘉兴学院