| Title: | Real-Time In Situ Volatile Organic Compound Sensing by a Dual-Emissive Polynuclear Ln-MOF with Pronounced Ln(III) Luminescence Response |
| Author(s): | Pang JJ; Yao ZQ; Zhang K; Li QW; Fu ZX; Zheng R; Li W; Xu J; Bu XH; |
| Address: | "School of Materials Science and Engineering, National Institute for Advanced Materials, TKL of Metal and Molecule-Based Material Chemistry, Nankai University, Tianjin, 300350, China. School of Chemistry and Chemical Engineering, TKL of Organic Solar Cells and Photochemical Conversion, Tianjin University of Technology, Tianjin, 300384, China. State Key Laboratory of Elemento-Organic Chemistry, College of Chemistry, Collaborative Innovation Center of Chemical Science and Engineering (Tianjin), Nankai University, Tianjin, 300071, China" |
| ISSN/ISBN: | 1521-3773 (Electronic) 1433-7851 (Linking) |
| Abstract: | "Lanthanide metal-organic frameworks (Ln-MOFs) are promising for luminescence detection of volatile organic compound (VOC) vapors, but usually suffer from the silent or quenched Ln(3+) emission. Herein, we report a new dual-emissive Eu-MOF composed of the coordinatively unsaturated Eu(9) clusters that afford abundant open metal sites to form a confined 'binding pocket' to facilitate the preconcentration and recognition of VOCs. Single-crystal structural analyses reveal that specific analytes can replace the OH oscillators in the first coordination sphere of Eu(3+) and form a unique hydrogen-bonding second-sphere adduct tying adjacent Eu(9) clusters together to minimize their nonradiative vibrational decay. With the promoted Eu(3+) luminescence, the MOF realizes real-time in situ visual sensing of THF vapor (<1 s) and shows a quantitative ratiometric response to the vapor pressure with a limit of detection down to 17.33 Pa. Also, it represents a top-performing ratiometric luminescent thermometer" |
| Keywords: | Lanthanide Polynuclear Clusters Metal-Organic Frameworks Ratiometric Luminescence Behavior Temperature Sensing Volatile Organic Compound Detection; |
| Notes: | "PubMed-not-MEDLINEPang, Jing-Jing Yao, Zhao-Quan Zhang, Kuo Li, Quan-Wen Fu, Zi-Xuan Zheng, Ran Li, Wei Xu, Jian Bu, Xian-He eng 22171144/National Natural Science Foundation of China/ 22001132/National Natural Science Foundation of China/ 21771113/National Natural Science Foundation of China/ 023-63223024/the Fundamental Research Funds for the Central Universities, Nankai University/ 023-63223022/the Fundamental Research Funds for the Central Universities, Nankai University/ Germany 2022/12/14 Angew Chem Int Ed Engl. 2023 Feb 6; 62(7):e202217456. doi: 10.1002/anie.202217456. Epub 2023 Jan 10" |
