期刊
JOURNAL OF MATERIALS CHEMISTRY C
卷 4, 期 25, 页码 6110-6116出版社
ROYAL SOC CHEMISTRY
DOI: 10.1039/c6tc01586g
关键词
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资金
- National Natural Science Foundation of China [51473078, 61136003]
- National Program for Support of Top-Notch Young Professionals, Scientific and Technological Innovation Teams of Colleges and Universities in Jiangsu Province [TJ215006]
- Natural Science Foundation of Jiangsu Province of China [BK20130038, BM2012010]
- Synergetic Innovation Center for Organic Electronics and Information Displays
- Priority Academic Program Development of Jiangsu Higher Education Institutions [YX03001]
A phosphorescent water probe based on an Ir(III) complex with 5-formamide-1,10-phenanthroline as an N boolean AND N ligand has been designed and synthesized. Its phosphorescence emission can be quenched by the addition of a fluoride anion through a deprotonation process occurring in -NH and it can be recovered by adding a trace amount of water to the detecting solution. Based on this performance, the phosphorescent probe has been utilized to determine the water content in organic solvents, which shows low limit of detection (LOD) and limit of quantitation (LOQ). Furthermore, taking advantage of the long emission lifetime of the phosphorescence signal, a time-resolved photoluminescence experiment was performed for detecting the water content, which could effectively eliminate the fluorescence background and improve the sensitivity and the signal-to-noise ratio of detection in complex systems.
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