title: A Highly Chemically Stable Metal-Organic Framework as a Luminescent Probe for the Regenerable Ratiometric Sensing of pH.
abstract: A heteroatom-rich 3D noninterpenetrating metal-organic framework (MOF) Cd-EDDA constructed from an ethylene glycol ether bridging tetracarboxylate ligand H4 EDDA (5,5'-(ethane-1,2-diylbis(oxy))diisophthalic acid) shows good chemical resistance to both acidic and alkaline solutions with a pH ranging from 2.0 to 12.2. There is a corresponding ratiometric luminescence response to pH from 2.0 to 11.5, and the sensing mechanism is also discussed through ion chromatography and molecular force field-based calculations. Importantly, the probe can easily be regenerated simply by modulating the pH of the solution, thus being the first example of a regenerable MOF-based ratiometric luminescent probe for pH.
authors: School of Chemistry and Chemical Engineering & Jiangsu Key Laboratory of Green Synthetic Chemistry for Functional, Materials, Jiangsu Normal University, Xuzhou, Jiangsu, 221116, P.R. China.
authors: Jian
authors: J
authors: Wang
authors: School of Chemistry and Chemical Engineering & Jiangsu Key Laboratory of Green Synthetic Chemistry for Functional, Materials, Jiangsu Normal University, Xuzhou, Jiangsu, 221116, P.R. China.
authors: Yang
authors: Y
authors: Li
authors: School of Chemistry and Chemical Engineering & Jiangsu Key Laboratory of Green Synthetic Chemistry for Functional, Materials, Jiangsu Normal University, Xuzhou, Jiangsu, 221116, P.R. China.
authors: Min
authors: M
authors: Jiang
authors: School of Chemistry and Chemical Engineering & Jiangsu Key Laboratory of Green Synthetic Chemistry for Functional, Materials, Jiangsu Normal University, Xuzhou, Jiangsu, 221116, P.R. China.
authors: Yanhong
authors: Y
authors: Liu
authors: School of Chemistry and Chemical Engineering & Jiangsu Key Laboratory of Green Synthetic Chemistry for Functional, Materials, Jiangsu Normal University, Xuzhou, Jiangsu, 221116, P.R. China.
authors: Lingwen
authors: L
authors: Zhang
authors: School of Chemistry and Chemical Engineering & Jiangsu Key Laboratory of Green Synthetic Chemistry for Functional, Materials, Jiangsu Normal University, Xuzhou, Jiangsu, 221116, P.R. China. wpyan@jsnu.edu.cn.
authors: Pengyan
authors: P
authors: Wu
keywords: fluorescence; fluorescent probes; metal-organic frameworks; ratiometric luminescence