高等学校化学学报

高等学校化学学报 ›› 2013, Vol. 34 ›› Issue (6): 1368.doi: 10.7503/cjcu20120875

• 分析化学 • 上一篇    下一篇

基于偶氮水杨醛酰腙的氰根比色检测探针的合成及性能

胡京汉, 颜农平, 陈娟娟, 李建斌   

  1. 兰州交通大学化学与生物工程学院, 兰州 730070
  • 收稿日期:2012-09-24 出版日期:2013-06-10 发布日期:2013-01-21
  • 通讯作者: 胡京汉,女,教授,主要从事功能配合物化学与超分子化学研究.E-mail:hujinghan62@163.com E-mail:hujinghan62@163.com
  • 基金资助:

    甘肃省高校研究生导师科研项目(批准号: 0804-11)资助.

Synthesis of Azosalicylic Aldehyde of Benzoyl Hydrazone Based Sensor and It’s Colorimetric Sensing Properties for Cyanide Anions in Aqueous Solutions

HU Jing-Han, YAN Nong-Ping, CHEN Juan-Juan, LI Jian-Bin   

  1. College of Chemical and Biological Engineering, Lanzhou Jiaotong University, Lanzhou 730070, China
  • Received:2012-09-24 Online:2013-06-10 Published:2013-01-21

PDF (PC)

被引次数

11

摘要：

设计合成了一种基于酚羟基和氨基的酰腙类探针分子, 利用紫外-可见吸收光谱和核磁滴定考察了其对F-, Cl-, Br-, I-, CH3COO-, H2PO4-, HSO4-, ClO4-, CN-, SCN-, SO2-4和NO-3等阴离子的识别作用. 结果表明, 当加入CN-离子时主体溶液颜色由无色变为黄色, 而加入其它离子时主体溶液颜色不变, 说明该探针在DMSO/H2O(体积比5: 5)体系中能选择性裸眼比色检测CN-. 核磁滴定及质谱数据表明, 该探针与CN-以1:1化学计量比结合, 该过程通过亲核加成方式完成.

关键词: 氰根识别, 阴离子识别, 比色检测, 偶氮水杨醛, 亲核加成

Abstract:

A colorimetric anions sensor bearing phenol -OH and -NH groups was synthesized. The binding properties of the receptor with anions such as F-, Cl-, Br-, I-, CH3COO-, H2PO4-, HSO4-, ClO4-, CN-, SCN-, SO2-4 and NO-3 were examined by UV-Vis and 1H NMR spectra. Upon the addition of CN-anions, the sensor displayed apparent color changes from colorless to yellow while other anions did not cause obvious color changes. The UV-Vis spectroscopic titration experiments and MS data indicated the formation of 1: 1 addition compound between CN- and the sensor. The results showed that the sensor in DMSO/H2O(volume ratio 5: 5) solution indicated colorimetric single selectivity for CN- which could be observed by naked eyes due to the nucleophilic addition reaction of cyanide.

Key words: Cyanide recognition, Anion recognition, Colorimetric detection, Azosalicylic aldehyde, Nucleophilic addition

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