Journal of South China University of Technology(Natural Science) >
Synthesis and Anion Recognition Properties of Sulfonylurea Receptor
Received date: 2012-08-23
Revised date: 2012-11-28
Online published: 2013-02-01
Supported by
国家自然科学基金资助项目( 21074073, 51173050, 21244007)
A novel sulfonylurea anion receptor,namely bis-( 4'-nitro phenyl) sulfonylurea,was synthesized andapplied to the naked-eye detection of anions by observing the color change of receptor solution after the addition ofanions,and obvious color change of the solution,namely F- -induced brown yellow or CH3CO2- -induced lightyellow,was observed.However,the color slightly changed when such other anions as NO3- ,Br- ,Cl- and HSO4- were introduced in the solution.Afterwards,the binding ability of the receptor with mono-anions was tested bymeans of UV-vis spectrophotometry titration method,with rather strong affinity of sulfonylurea to F- and CH3CO2-being revealed. Jobs plot indicates that the receptor and F- groups form a kind of complex with 1:2 stoichiometry.Moreover,the UV absorption spectra of methanol for the complex confirm that the receptor binds with anions withthe help of hydrogen bond.
Key words: sulfonylurea; receptor; anion recognition; naked-eye detection
Qu Jin-qing Wan Wen Yong Xue Su Ming-jian Yan Yi-chen Liu Rui-yuan . Synthesis and Anion Recognition Properties of Sulfonylurea Receptor[J]. Journal of South China University of Technology(Natural Science), 2013 , 41(3) : 142 -146 . DOI: 10.3969/j.issn.1000-565X.2013.03.021
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