A simple colorimetric chemosensor bearing a carboxylic acid group with high selectivity for CN-

作者:Park Gyeong Jin; Choi Ye Won; Lee Dongkuk*; Kim Cheal
来源:Spectrochimica Acta Part A: Molecular and Biomolecular Spectroscopy , 2014, 132: 771-775.
DOI:10.1016/j.saa.2014.06.001

摘要

A new simple 'naked eye' chemosensor I (sodium (E)-2-((2-(3-hydroxy-2-naphthoyl)hydrazono) methyl)benzoate) has been synthesized for detection of CN- in a mixture of DMF/H2O (9:1). The sensor 1 comprises of a naphthoic hydrazide as efficient hydrogen bonding donor group and a benzoic acid as the moiety with the water solubility. The receptor 1 showed high selectivity toward cyanide ions in a 1:1 stoichiometric manner, which induces a fast color change from colorless to yellow for CN- over other anions. Therefore, receptor I could be useful for cyanide detection in aqueous environment, displaying a high distinguishable selectivity from hydrogen bonded anions and being clearly visible to the naked eye.

  • 出版日期2014-11-11