高等学校化学学报 ›› 2011, Vol. 32 ›› Issue (1): 56.

• 研究论文 • 上一篇    下一篇

2-基萘甲醛苯腙衍生物对氟阴离子的高选择性裸眼识别

聂丽,胡蕾,傅绪成   

  1. 皖西学院安徽省仿生传感与检测技术实验室, 六安 237012
  • 收稿日期:2010-05-05 修回日期:2010-10-20 出版日期:2011-01-10 发布日期:2010-12-11
  • 通讯作者: 聂丽 E-mail:nieli@wxc.edu.cn
  • 基金资助:

    国家自然科学基金(批准号: 20907035)和安徽省教育厅教学研究项目(批准号: 2008jyxm543)资助.

Highly Selective Colorimetric Fluoride Receptors Based on 2-Hydroxynaphthaldehyde Phenylhydrazone Derivatives

NIE Li* HU Lei, FU Xu-heng   

  1. Anhui Biomimetic Sensing and Detection Technology Laboratory, Wanxi College Liu’an 237012, China
  • Received:2010-05-05 Revised:2010-10-20 Online:2011-01-10 Published:2010-12-11
  • Contact: NIE Li E-mail:nieli@wxc.edu.cn
  • Supported by:

    国家自然科学基金(批准号: 20907035)和安徽省教育厅教学研究项目(批准号: 2008jyxm543)资助.

摘要: 合成了3种2-羟基萘甲醛苯腙衍生物(1-3;取代基 R=p-H, p-NO2, 2,4-(NO2)2),应用紫外吸收光谱方法研究了其与阴离子的相互作用,考察了N’-苯环取代基对受体分子对阴离子亲合力和选择性的影响。实验表明:乙腈中F?、CH3COO?等阴离子使受体分子吸收光谱发生显著红移,溶液的颜色由黄色转变为蓝色或红色,其中受体分子2对F?表现出高选择性灵敏响应,是裸眼检测氟离子优良的传感分子。在受体分子3的乙腈溶液中引入水可以改变其识别阴离子选择性,该受体在5%H2O-95% CH3CN(V/V) 介质中仅对F?有响应,对其它阴离子不响应,据此,受体分子3可望成为含水溶液中裸眼识别氟离子的新体系。

关键词: 2-羟基萘甲醛苯腙, 氟离子, 选择性, 裸眼

Abstract: Three 2-hydroxy naphthaldehyde phenyl hydrazone derivatives were designed and synthesized (1-3; substituent R = p-H, p-NO2, 2, 4-(NO2)2). The interaction between the target compounds and anions was investigated by means of a UV spectrometer, and the effect of the affinity and selectivity of receptors to anions was also studied by changing the N’-substituted groups of benzene ring. The result showed that absorption spectra of receptors were red shifted significantly in acetonitrile solution containing F-and CH3COO-, and a clear color change was observed from yellow to blue or red in acetonitrile solution. The receptor molecule 2 had high selectivity and sensitivity response to F- and will promise to a good sensing molecule in detection of F-by naked eye. The recognition selectivity of receptor molecule 3 to anion can be changed through adding water in acetonitrile solution, and receptor molecule 3 only recognized F-in 5%H2O-95% CH3CN(V/V) solution, but had no evident response to other anions. So receptor molecule 3 is expected to be a new sensor which can recognize F-by naked eye in aqueous solution.

Key words: 2-hydroxynaphthaldehyde phenyl hydrazone, fluoride anion, selectivity, naked eyes

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