A Ratiometric Colorimetric and Fluorescent Chemosensor for Rapid Detection Hydrogen Sulfide and Its

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A colorimetric and fluorescent chemosensor bearing hybrid coumarin-hemicyanine functionality has been synthesized for H2S sensing.The detection of sulfide was performed via the nucleophilic attack toward the polarized C=N and an electron-poor C=C bond of the probe,which can provide a potentially powerful approach for probing H2S chemistry in biological system.
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