期刊
INORGANIC CHEMISTRY
卷 56, 期 5, 页码 2690-2696出版社
AMER CHEMICAL SOC
DOI: 10.1021/acs.inorgchem.6b02872
关键词
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资金
- 973 Program [2012CB821701]
- NSFC [21401119, 20925101, 21271125]
- Ministry of Education of China [IRT1156]
Heavy-metal ions and nitroaromatic substances are highly toxic and harmful to human health and the ecological environment. It is an urgent issue to selectively detect and capture these toxic substances. By introducing the triazole ligand to the pi-conjugated aromatic carboxylate system and borrowing the organic template open framework idea, a stable fluorescent framework [Me2NH2](4)[Zn-6(qptc)(3)(trz)(4)]center dot 6H(2)O (1) (H(4)qptc = terphenyl-2,5,2'5'-tetracarboxylic acid, trz = 1,2,4-triazole) has been successfully synthesized, which features Zn-4(trz)(2) chain-based 3D anionic structure with channels filled by [Me2NH2](+) cations. It is worth noting that the material exhibits selective adsorption and recyclable detection of heavy-metal Cr3+ ion in aqueous solutions, which may be the synergy from the metal charge, bond ability of metal ions to carboxylate oxygen atom, and soft-hard acid-base properties. Furthermore, it can selectively sense of 2,4,6-trinitrophenol with a large quenching coefficient K-sv of 2.08 X 10(6)M(-1).
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