Four cyclometalated iridium(III) complex-based chemosensors for turn-on response to thiourea in fruit juice and their application in test strips
作者:Yi-Chuan Huang、Xi Chu、Wen-Hao Li、Shi-Sheng Zhao、Jia-Xin Zhang、Zhen-Qiang Qin、Hong-Yan Li、Wei Xue
DOI:10.1016/j.dyepig.2023.111427
日期:2023.9
chemosensors to identify thiourea. These iridium(III) complexes exhibited emission peaks between 541 nm and 583 nm with PLQY ranging from 0.12 to 0.26 and lifetime in the range of 2.65–2.74 μs. All the four iridium(III) complexes showed significant turn-on response to TU with low limit of detect on the order of 10−8 M. Furthermore, these iridium(III) complexes-based chemosensors exhibited excellent
过量的硫脲(TU)已被证明对环境系统和人体都有害,因此必须创建选择性和灵敏的传感器来检测 TU。在此,四种铱 (III) 配合物,[(fppy) 2 Ir(PD)]PF 6 ( Ir-fppy , fppy = 2-(4-fluorophenyl)pyridine), [(fpiq) 2 Ir(PD)]PF 6 ( Ir-fpiq , fpiq = 1-(4-氟苯基) 异喹啉), [(dfppy) 2 Ir(PD)]PF 6 ( Ir-dfppy , dfppy = 2-(3,5-二氟苯基)吡啶) 和 [( dfpiq) 2 Ir(PD)]PF 6 ( Ir-dfpiq, dfpiq = 1-(3,5-二氟苯基)异喹啉) 以 1,10-菲咯啉-5,6-二酮 (PD) 作为辅助配体,被设计和合成,并用作识别硫脲的有效化学传感器。这些铱 (III) 配合物的发射峰在 541 nm 和 583 nm