期刊
SPECTROCHIMICA ACTA PART A-MOLECULAR AND BIOMOLECULAR SPECTROSCOPY
卷 191, 期 -, 页码 566-572出版社
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.saa.2017.10.029
关键词
Fluorescent probe; Colorimetric detection; Acylhydrazine; Schiff base; Iron ion(III)
类别
资金
- National Natural Science Foundation of China [21042002]
Three rhodamine schiff-base type fluorescent sensors R1-R3 for detecting iron ion (Fe3+), 2-furanacrolein rhodamine hydrazone (R1), furfural rhodamine hydrazone (R2) and 2-furanacrolein rhodamine ethylenediamine (R3) have been synthesized by using rhodamine B derivatives and furan derivatives as staring materials. And their recognition abilities for Fe3+ were studied by fluorescence spectroscopy. The result showed that R1 is a best selective probe for Fe3+ over other metal ions in EtOH/H2O (1:1, v/v) due to having 2-furanacrolein for unique space coordination structural. The recognition of Fe3+ and mechanism of the sensor were characterized and determined by fluorescence spectra and Fukui function. And the fluorescence intensity of the probe R1 for Fe3+ was proportional to its concentration with the linear correlation coefficient of 0.9965 and the binding constant of 7.66 x 10(4) M-1. And the cell imaging experiment indicated a successful application of the probe R1 for Fe3+ in living cell. (C) 2017 Published by Elsevier B.V.
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