3-[(2-羟基-1-萘基)亚甲基氨基]苯甲酸的荧光性质及其作为汞离子和铝离子荧光化学传感器的应用。
The fluorescent property of 3-[(2-hydroxy-1-naphthyl) methylideneamino]benzoic acid and its application as fluorescent chemosensor for Hg and Al ions.
作者信息
Sun Changyan, Sun Jiayi, Qiu Fazheng, Li Wenjun, Chang Zhidong, Zhang Lijun
机构信息
School of Chemistry and Biological Engineering, University of Science and Technology Beijing, Beijing 100083, China.
School of Chemistry and Biological Engineering, University of Science and Technology Beijing, Beijing 100083, China.
出版信息
Spectrochim Acta A Mol Biomol Spectrosc. 2018 Jan 5;188:1-7. doi: 10.1016/j.saa.2017.06.061. Epub 2017 Jul 3.
This manuscript studies the fluorescent property of 3-[(2-hydroxy-1-naphthyl)methylideneamino]benzoic acid (HL). Fluorescent spectra show that in different solvents, HL displays different fluorescent properties, which can be attributed to the interaction between the solvents and HL. Further study indicates that HL exhibits a highly selective and sensitive recognition for Hg ions in dimethylsulfoxide (DMSO), Al ions in methanol and N,N'-dimethylformamide/water (DMF/HO, 1/1, v/v). The bonding modes and bonding ratio of HL and metal ions in different solvents are explored by Job's plot, H NMR titration, and electrospray ionization mass spectrometry (ESI-MS). The probable mechanisms were discussed.
本手稿研究了3-[(2-羟基-1-萘基)亚甲基氨基]苯甲酸（HL）的荧光性质。荧光光谱表明，在不同溶剂中，HL表现出不同的荧光性质，这可归因于溶剂与HL之间的相互作用。进一步研究表明，HL在二甲基亚砜（DMSO）中对Hg离子、在甲醇以及N,N'-二甲基甲酰胺/水（DMF/H₂O，1/1，v/v）中对Al离子表现出高度选择性和灵敏的识别能力。通过Job曲线、¹H NMR滴定和电喷雾电离质谱（ESI-MS）探究了HL与金属离子在不同溶剂中的键合模式和键合比率，并讨论了可能的机理。
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