期刊
SUPRAMOLECULAR CHEMISTRY
卷 28, 期 3-4, 页码 204-211出版社
TAYLOR & FRANCIS LTD
DOI: 10.1080/10610278.2015.1082562
关键词
Thiourea-based dimer; fluorescent sensor; cation and anion sensing; test paper
资金
- National Natural Science Foundation of China [21571156, J1210060]
- Natural Science Foundation of Henan Education Department [15A150026]
The cation and anion recognition properties of a binuclear Eu(III) complex, [Eu-2((2)-(2)-H2L)(2)((2)-H2L)(2)(phen)(2)(NO3)(2)]2CH(3)OH (EuL) {H3L=2-(3-benzoylthioureido)ethanoic acid; phen=1,10-phenanthroline} have been thoroughly investigated in DMF solution at room temperature by luminescence method. These investigations revealed that the EuL dimer acts as a bifunctional turn off' sensor for both Fe3+ cation and NO2- anion. The possible luminescence quenching mechanism of Fe3+ cation and NO2- anion to the dimer has been discussed. Furthermore, the simple and portable test paper based on the EuL fluorescent sensor has been explored, which may provide a convenient method of determination of Fe3+ and NO2- ions in everyday applications.
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