文献类型：期刊文献

英文题名：Cucurbit[8]uril-enabled supramolecular phosphorescent probe for dual recognition of [Fe(CN)6]3-and Cr2O7 2- ☆

作者：Long, Xiantao Sun, Yan Bai, Qinghong Lu, Jihong Yuan, Shangwei Chen, Qing Xiao, Zhiyou Xiao, Xin

第一作者：Long, Xiantao

通信作者：Chen, Q[1];Xiao, X[1];Xiao, ZY[2]|[144403e0b01838bf59481]肖志友;[14440082c0f833d29abe5]肖志友;

机构：[1]Guizhou Univ, Sch Chem & Chem Engn, Guizhou Key Lab Macrocycl & Supramol Chem, Guiyang 550025, Peoples R China;[2]Guizhou Inst Technol, Sch Chem Engn, Guiyang 550025, Peoples R China

第一机构：Guizhou Univ, Sch Chem & Chem Engn, Guizhou Key Lab Macrocycl & Supramol Chem, Guiyang 550025, Peoples R China

通信机构：corresponding author), Guizhou Univ, Sch Chem & Chem Engn, Guizhou Key Lab Macrocycl & Supramol Chem, Guiyang 550025, Peoples R China;corresponding author), Guizhou Inst Technol, Sch Chem Engn, Guiyang 550025, Peoples R China.|贵州理工学院化学工程学院;贵州理工学院;

年份：2026

卷号：227

外文期刊名：MICROCHEMICAL JOURNAL

收录：;WOS:【SCI-EXPANDED(收录号:WOS:001801633900001)】；

基金：We acknowledge the support of Guizhou Provincial Basic Research Program (Natural Science) (QKHJCZD [2026] 025) , the Guizhou Provincial Basic Research Program (Natural Science) (No. QKHJC-zk [2025] MS693, QKHJCQN [2025] 062) and the Guizhou Provincial Key Laboratory Platform Project (ZSYS [2025] 008) .

语种：英文

外文关键词：Anion recognition; Cucurbit[8]uril; Bromoisoquinoline derivative; Host-guest self-assembly; Pure organic room-temperature; phosphorescence

摘要：Anion recognition is critical in supramolecular chemistry but remains challenging with artificial macrocycles. Herein, a dicationic bromoisoquinoline derivative (BBPI) was designed and synthesized as a guest molecule, which self-assembles with cucurbit[8]uril (Q[8]) to form a 1:1 supramolecular assembly, denoted as BBPI@Q[8]. The rigid Q[8] cavity suppresses molecular motion and shields the phosphor from oxygen or water, activating room-temperature phosphorescence (RTP) with a lifetime of 0.5755 ms and quantum yield of 2.24%. The assembly selectively detects [Fe(CN)6]3- and Cr2O72- via resonance energy transfer-induced quenching, with detection limits of 1.6854 & times; 10- 7 M and 2.4709 & times; 10- 7 M, respectively, and exhibits excellent anti-interference against common ions, which provides a new strategy for purely organic RTP materials via cucurbituril host-guest chemistry and expands their application in anion recognition and environmental detection.