Rhodamine 6G-based Chemosensor for the Visual Detection of Cu 2+ and Fluorescent Detection of Hg 2+ in Water
作者： Song He , Qiuchen Liu , Yuanyuan Li , Fangfang Wei , Songtao Cai
DOI: 10.1007/S40242-014-3364-Z
关键词:
摘要: A novel water soluble chemosensor 1 based on rhodamine 6G spirolactam scaffold has been synthesized and characterized. Upon addition of a wide range the environmentally biologically relevant metal ions, shows colorimetric selective Cu2+ recognition from colorless to pink confirmed by UV-Vis absorption spectral changes, while it also exhibits fluorometric Hg2+ fluorescence spectrometry. An enhancement factor over 17-fold with 1-Cu2+ complex fluorescent 45-fold 1-Hg2+ were observed. Their mechanisms assumed be 1:1 stoichiometry for 1:2 complex, respectively, which proposed different ligation leading ring-opening spirolactam. Furthermore, detection limits or 3.3×10−8 1.7×10−7 mol/L, respectively.
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