期刊
INORGANIC CHEMISTRY
卷 56, 期 7, 页码 4197-4205出版社
AMER CHEMICAL SOC
DOI: 10.1021/acs.inorgchem.7b00157
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资金
- NSFC of China [21361016]
- Inner Mongolia Autonomous Region Fund for Natural Science [2013ZD09]
A unique metal-organic complex (MOC) with formula [Eu-2(tpbpc)(4)center dot CO3 center dot 4H(2)o].DMF.solvent (Htpbpc 4 '-[4,2 ';6 ',4 '']-terpyridin-4 '-yl-biphenyl-4-carboxylic acid) has been successfully constructed under solvothermal conditions. The Eu complex, as proved by structural analysis) exhibits a fascinating 1D linear-type chain structure which is further extended to a 3D H-bonded supramolecular framework. The luminescent investigations confirm that the emission behavior of the Eu complex possesses excellent water stability and pH stability, and it is the first example of a MOO-based fluorescent probe with high selectivity, high sensitivity, and low detection limit, targeting Cr(III) and Cr(VI) (CrO42-/Cr2O72-) ions in aqueous solution. Importantly, the luminescence can be fast and simple, regenerated in detecting CrO(4)(2-)and Cr2O72- ions. Furthermore, the simple fluorescent-based test paper was successfully prepared and provided a reliable and visual detection of Cr3+,CrO42- , and Cr2O72- ions in daily applications.
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