Five title compounds were synthesized and characterized by UV Vis, IR, elemental analysis, 1H NMR and fluorescence spectra. It is found that the fluorescence intensities of the compounds at optimum pH values were 16 t...Five title compounds were synthesized and characterized by UV Vis, IR, elemental analysis, 1H NMR and fluorescence spectra. It is found that the fluorescence intensities of the compounds at optimum pH values were 16 to 319 times as much as that of 4 aminoantipyrine. The influences of the substituents of the compounds on the fluorescence intensity have been discussed.展开更多
文摘Five title compounds were synthesized and characterized by UV Vis, IR, elemental analysis, 1H NMR and fluorescence spectra. It is found that the fluorescence intensities of the compounds at optimum pH values were 16 to 319 times as much as that of 4 aminoantipyrine. The influences of the substituents of the compounds on the fluorescence intensity have been discussed.
