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A bifunctional rhodamine derivative as chemosensor for recognizing Cu2+ and Hg2+ ions via different spectra
- A bifunctional rhodamine derivative as chemosensor for recognizing Cu2+ and Hg2+ ions via different spectra
- Wang, Kaijie; Kong, Qing; Chen, Xiaoqiang; Yoon, Juyoung; Swamy, K. M. K.; Wang, Fang
- Ewha Authors
- 윤주영; K.M.K Swamy
- SCOPUS Author ID
- Issue Date
- Journal Title
- CHINESE CHEMICAL LETTERS
- CHINESE CHEMICAL LETTERS vol. 31, no. 5, pp. 1087 - 1090
- Rhodamine; Fluorescent sensor; Colorimetric sensor; Spirolatam-ring opening; Mercury; Copper
- ELSEVIER SCIENCE INC
- SCIE; SCOPUS
- Document Type
- A new simple bifunctional chemosensor 1 based on rhodamine was synthesized by hydrazide and formylformic acid, which could detect Cu2+ and Hg2+ via different detecting methods in CH3CN-HEPES buffer solution (20 mmol/L, pH 7.4) (1:9, v/v) respectively. When sensor 1 bound with Cu2+, it showed a colorimetric change, while a selective enhancement in fluorescence occurred upon 1 binding with Hg2+, resulting from the spirolatam-ring opening process. The binding modes of 1 with Cu2+ and Hg2+ were investigated based on UV, fluorescence change, ESI-Mass and Job's Plot data. Moreover, sensor 1 could selectively detect target ion in a mixed solution of Cu2+ and Hg2+, and the two metal ions do not interfere with each other in the process of detecting Cu2+ or Hg(2+ )with 1. (C) 2019 Chinese Chemical Society and Institute of Materia Medica, Chinese Academy of Medical Sciences. Published by Elsevier B.V. All rights reserved.
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