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Three tetraaryl imidazole derivatives 5a-5c bearing thiazole groups were synthesized in the presence of [Bmin]Br by one-pot reaction and their structures were fully characterized by the ~1H NMR,IR,MS and elemental analysis.The results of UV-vis spectra and fluorescent spectra upon metal ions complexation show that compound 5a displays high selectivity and sensitivity for Cr~(3+) ions.The complexation ratio of compound 5a and Cr~(3+) is 1:1.
Three tetraaryl imidazole derivatives 5a-5c bearing thiazole groups were synthesized in the presence of [Bmin] Br by one-pot reaction and their structures were fully characterized by the ~ 1H NMR, IR, MS and elemental analysis. The results of UV-vis spectra and fluorescent spectra upon metal ions complexation show that compound 5a displays high selectivity and sensitivity for Cr ~ (3+) ions. The complexation ratio of compound 5a and Cr ~ (3+) is 1: 1.