A series of fluorinated pyrazoline derivatives were synthesized by the reaction of fluorinated chalcone with hydrazine ArNHNH2 (Ar=4‐BrC6F4, 4‐ClC6H4, C6H5, 4‐CH3C6H4 and 4‐CH3OC6H4). The structures of all these compounds were fully supported by their spectroscopic data and one of products was further confirmed by X‐ray single crystal diffraction analysis. The capability of fluorinated triaryl‐2‐pyrazolines to detect metal cations was investigated, by monitoring changes in their fluorescence spectra in the presence of Cd2+, Co2+, Cu2+, Mn2+, Ni2+ and Zn2+.
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