Multiresponsive luminescent probe for Fe3+, CrO42- and Cr2O72- in aqueous solution based on N,N’-bis-pyridin-2-ylmethylene-hydrazine and phthalate ligands

One new luminescent metal-organic framework (LMOF), {[Cd2(L) (BDC)2(H2O)2]·4H2O}n (1) (L = N,N’-bis-pyridin-2-ylmethylene-hydrazine, H2BDC = phthalic acid), was synthesized and structurally characterized by single-crystal X-ray diffraction analysis, elemental analysis, infrared spectroscopy and ther...

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Published in:Journal of coordination chemistry 2022-06, Vol.75 (5-6), p.850-861
Main Authors: Wang, Yan, Bei-Bei Yin, Xu, Wei, Yun-Yun, Zhang, Liang, Jing, Ling-Long, Fan, Ya-Jie Lu, Hu, Rong, Ning-Ning Gao, Jiang, Hao, Jia-Yin, Sun, Xiao-Ming, Kai
Format: Article
Language:English
Subjects:
Aqueous solutions
Crystal structure
Ferric ions
Hydrazines
Hydrogen bonds
Infrared analysis
Metal-organic frameworks
Single crystals
Thermogravimetric analysis
Two dimensional analysis
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Summary:One new luminescent metal-organic framework (LMOF), {[Cd2(L) (BDC)2(H2O)2]·4H2O}n (1) (L = N,N’-bis-pyridin-2-ylmethylene-hydrazine, H2BDC = phthalic acid), was synthesized and structurally characterized by single-crystal X-ray diffraction analysis, elemental analysis, infrared spectroscopy and thermogravimetric analysis. Complex 1 exhibits two-dimensional (6,3)-topological layer structures that are further stabilized by hydrogen bonds into a 3 D architecture. Luminescence experiments showed that 1 can act as a turn-off luminescent probe for the sensitive and selective detection of Fe3+, CrO42-, and Cr2O72- ions. The detection limits as well as the possible quenching mechanism was also explored.
ISSN:0095-8972
1029-0389
DOI:10.1080/00958972.2022.2065633