Highly selective detection of copper(Ⅱ) by a “ligand-free” conjugated copolymer in nucleophilic solvents
作者机构：Key Laboratory for Organic Electronics and Information Displays&Jiangsu Key Laboratory for BiosensorsInstitute of Advanced Materials(IAM)Jiangsu National Synergetic Innovation Center for Advanced Materials(SICAM)Nanjing University of Posts&TelecommunicationsNanjing 210023China Institute of Industrial ScienceThe University of TokyoMeguro-kuTokyo 153-8505Japan
出 版 物：《Frontiers of Chemical Science and Engineering》 (化学科学与工程前沿（英文版）)
年 卷 期：2020年第14卷第1期
页 面：105-111页
核心收录：
学科分类：081704[工学-应用化学] 07[理学] 0817[工学-化学工程与技术] 08[工学] 070303[理学-有机化学] 0703[理学-化学]
基 金：supported by the National Basic Research Program of China(Grant No.2015CB932200) the National Natural Science Foundation of China(Grant Nos.21604042,61378081,21574064,and 21674048) Synergetic Innovation Center for Organic Electronics and Information Displays,Jiangsu National Synergetic Innovation Center for Advanced Materials,the Natural Science Foundation of Jiangsu Province of China(No.BK20150843) NUPTSF(Nos.NY215017,NY211003,and NY215080) the Innovation Program for Postgraduates Research of Colleges and Universities of Jiangsu Province(No.CXZZ12-0459)
主 题：ligand-free fluorescent chemosensor copper photo-induced electron transfer
摘 要：The synthesis of N-cyclohexyl carbamate-attached fluorene-alt-phenylene copolymer(PFPNCC)and the use of PFPNCC as a“ligand-freefluorescent chemosensor for Cu(Ⅱ)are *** of Cu(Ⅱ)can efficiently quench the fluorescence of PFPNCC in nucleophilic solvents such as DMF and DMSO,but not in low nucleophilic solvents such as 1,4-dioxane and ***-visible spectra of the mixture of the conjugated polymer and Cu(Ⅱ)indicate the presence of a reduced Cu(Ⅰ)ion in the ***,fluorescence recovery of PFPNCC observed at low temperature suggests that the quenching and reducing mechanism is most probably due to a photo-induced electron transfer from excited PFPNCC to Cu(Ⅱ).Our findings provide a novel strategy for highly selective conjugated polymer-based chemosensors for various target analytes,albeit“ligand-free.
维普期刊数据库