On the synthesis and performance of a simple colorimetric and fluorescent chemosensor for Cu 2+ with good reversibility

• Published in: Spectrochimica acta. Part A, Molecular and biomolecular spectroscopy Vol. 277; p. 121245
• Main Authors: Wang, Bin, Xu, Weiling, Gan, Kaifeng, Xu, Ke, Chen, Qiaojie, Wei, Wei, Wu, Wei
• Format: Journal Article
• Language: English
• Published: England 05.09.2022
• Subjects: Colorimetry; Copper; Fluorescent Dyes; Ions; Spectrometry, Fluorescence; Cu(2+); Naked-eye detection; Chemosensor; Fluorescence

A colorimetric and fluorescent chemosensor (CS1) for Cu based on the mechanism of internal charge transfer (ICT) has been successfully designed and prepared by simple condensation of 4 (diethylamino)salicylaldehyde and oxalyl dihydrazide. Cu in solution (DMSO/H O = 7:3, v/v) by 5 mM NaAc-HAc at pH 7...