| 功能化三联吡啶衍生物的合成及其对Fe2+识别研究 | |
| Synthesis of a Terpyridine Derivative for Detection of Fe2+ | |
| 摘要: 设计合成了一种功能化三联吡啶衍生物(L),采用红外、核磁、质谱对其结构进行了表征.L具有聚集诱导发射增强性质.在EtOH-H2O介质中, L与Fe2+结合后显红色, 且不受其他离子影响, 是一种具有高度选择性和灵敏性的Fe2+比色识别探针.Fe2+紫外滴定实验表明, 在557 nm处产生一个由金属-配体电荷转移引起的特征吸收峰, 检测限为0.24 μmol·L-1,可以实现对Fe2+的痕量检测.Job's plot曲线得到L与Fe2+的结合比为2:1.识别性能不受pH影响, 且基于L的试纸可对水中Fe2+作出快速简便的识别, 有一定的实际应用价值. | |
| 关键词: 三联吡啶 α-氰基取代二苯乙烯 化学传感器 Fe2+探针 | |
| 基金项目: 国家自然科学基金(No.21101001),安徽省自然科学基金(No.1208085MB21)和安徽大学大学生创新创业训练项目(No.cxcy2012024)资助项目. | |
| Abstract: A α-cyanostilbene functionalized terpyridine derivative (L) has been synthesized, and characterized by FT-IR, 1H NMR, 13C NMR and MS spectra. L possesses excellent AIEE properties and exhibits highly selective and sensitive response to Fe2+ ions in aqueous solution. The color of solution changes from light yellow to magenta when Fe2+ is added instead of other metal ions. Addition of Fe2+ leads to a sharp new band at 557 nm, which is caused by the metal-to-ligand-charge-transfer (MLCT). The limit of detection is 0.24 μmol·L-1 and Job's plots confirm their 2:1 stoichiometric complexes. Furthermore, pH has no effects on the recognition and Fe2+ could be easily detected by a paper coated with L which is useful in its potential applications. | |
| Keywords: α-cyanostilbene terpyridine naked-eyes chemosensor Fe2+ probe | |
| 投稿时间：2014-04-15 修订日期：2014-08-29 | |
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| 张高宾,刘杰,潘扬,张瑞龙,孔林,黄建炎,杨家祥.功能化三联吡啶衍生物的合成及其对Fe2+识别研究[J].无机化学学报,2014,30(12):2699-2705. | |
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