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Updated: Jul 8, 2025
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Published on: March 19, 2019
The {Cu2I2} cluster bearing metal organic frameworks: crystal structures and fluorescence detecting performances
Jiang Jiang1, Zi-Wei Li2, Zhi-Zhuan Zhang2
1College of Life Sciences, Fujian Agriculture and Forestry University, Fuzhou, Fujian, 350002, P. R. China. jiang@fafu.edu.cn.
Abstract:
Two {Cu2I2} cluster-bearing metal organic frameworks (MOFs) of {[Eu(CuI)2(INA)3DMF]·0.95DMF} (Eu-CuI-INA) and {K[(CH3)2NH2]Sr4(INA)2(DMF)2{(Cu2I2)2(INA)8}·2H2O} (Sr-K-CuI-INA, HINA = isonicotinic acid, DMF = N,N-dimethyl formamide) were prepared and characterized in this work. Both materials feature a three-dimensional (3-D) structure, in which the {Cu2I2} clusters and Eu3+ (or Sr2+) metal ions are coordinated by INA- ligands with pyridine and carboxylic groups, respectively. Impressively, Sr-K-CuI-INA exhibits sensitive fluorescence sensing behaviors towards cysteine and nitro-bearing molecules, demonstrating potential FL sensing applications for bio and explosive molecules. This work would provide a good reference for designing fluorescent MOF probes containing CuI molecules.
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