A dual-functional fluorescent Co(II) coordination polymer sensor for the selective sensing of ascorbic acid and acetylacetone

被引:15
|
作者
Wang, Yan-Ning [1 ]
Wang, Shao-Dan [1 ]
Cao, Kang-Zhe [1 ]
Zou, Guo-Dong [1 ]
机构
[1] Xinyang Normal Univ, Coll Chem & Chem Engn, Xinyang 464000, Henan, Peoples R China
关键词
Coordination polymer (CP); Magnetic; Fluorescent sensor; Ascorbic acid; Acetylacetone; METAL-ORGANIC FRAMEWORKS; RECOGNITION; PLATFORM; LIQUID;
D O I
10.1016/j.jphotochem.2021.113204
中图分类号
O64 [物理化学(理论化学)、化学物理学];
学科分类号
070304 ; 081704 ;
摘要
A new coordination polymer (CP), [Co(mu(3)-HT)(mu-bPP)(H2O)](n) 1 (H3L = 5 (3,4 dicarboxylphenoxy) nicotinic acid, bpp = 1,2-bis (4-pyridyl) propane)) has been successfully prepared under solvothermal conditions. Single-crystal X-ray diffraction analysis demonstrates that compound 1 possesses a 2-D layer structure with (3-c)(4-c) 2-nodal (4(2)'6(3)'8) (4(2)'6) topology, which then self-assembles into a final 3-D supramolecular network via the interlayer pi center dot center dot center dot pi interactions. Magnetic studies indicate that there exist weak-anti-ferromagnetic exchange interactions between Co-II ions. More importantly, compound 1 represents a rare example of a fluorescent CP sensor which can dually probe ascorbic acid (AA) and acetylacetone (acac) in aqueous solution. The probable sensing mechanism of both analytes has also been discussed in this paper.
引用
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页数:8
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