Journal
SPECTROCHIMICA ACTA PART A-MOLECULAR AND BIOMOLECULAR SPECTROSCOPY
Volume 132, Issue -, Pages 771-775Publisher
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.saa.2014.06.001
Keywords
Cyanide; Colorimetric; Naphthoic hydrazide; Carboxylic acid; Deprotonation
Categories
Funding
- Ministry of Education, Science and Technology [2012001725, 2011K000675, 2012008875]
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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. (C) 2014 Elsevier B.V. All rights reserved.
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