5-(N-Ethylcarbazol-3-yl)thiophene-2-carbaldehyde (ECTC): a novel fluorescent sensor for ferric ion

Heterocyclic communications

article

Qiang Zhang¹  Huaixin Wei¹  Rongjia Zhai¹  Zhongling Ji¹  Yu Qi¹  Xin Zhao¹ 

[1] School of Chemistry, Biology and Material Engineering, Suzhou University of Science and Technology;Jiangsu Key Laboratory of Environmental Functional Materials

关键词: carbazole derivative;    ferric ion;    fluorescent sensor;    Suzuki coupling;   

DOI  :  10.1515/hc-2016-0130

学科分类：内科医学

来源: De Gruyter

【 摘 要 】

5-( N -Ethylcarbazol-3-yl)thiophene-2-carbaldehyde (ECTC), was synthesized by Suzuki coupling reaction and characterized by 1 H NMR, 13 C NMR and elemental analysis. This compound strongly quenches fluorescence of Fe 3+ ion, whereas almost no quenching is observed in the presence of other metal ions including Na + , K + , Mg 2+ , Ca 2+ , Cu 2+ , Mn 2+ and Co 2+ . Under optimized conditions, the fluorescence intensity of ECTC is quenched in a linear fashion by Fe 3+ ion in a wide range of 0.1 μ m –10 μ m with the limit of detection below 0.1 μ m .

【 授权许可】

CC BY|CC BY-NC-ND