Copper complex based on 2-(phenylimino-methyl)-phenol as a high selective fluoresencent probe for hydrogen sulfide

Add time:07/23/2019    Source:sciencedirect.com

A Copper(II) complex of condensation production was synthesized and its crystal was also obtained by the reaction of 2-(phenylimino-methyl)-phenol with Cu(CH3COO)2·H2O. The crystal and molecular structure of the complex was determined by single-crystal X-ray diffraction, IR, and HRMS. The Cu(II) ion was four coordinated with two phenolate oxygen and two imine nitrogen atoms in a square-planar geometry. It should be emphasized that the complex demonstrated high selectivity and sensitivity for hydrogen sulfide over other anions (AcO−, H2PO4−, F−, Cl−, Br− and I−) followed by the release of copper ion to give a remarkable increase of fluorescence intensity in various organic-aqueous solutions. The synthesized copper complex could be used as a fluoresencent probe for the detection of HS− in the sample of environment, pharmacy, and etc.

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