Abstract:

A kind of fluorescence probe based on (R)-2,2'-dihydroxy-[1,1'-binaphthalene]-3-carboxaldehyde was constructed. The structure was characterized by hydrogen/carbon nuclear magnetic resonance spectroscopy(¹H NMR, ¹³C NMR) and mass spectrometry(MS). The results show that the fluorescent probe can detect arginine in a sensitive and highly selective manner with a double response of color and intense fluorescence. The corresponding fluorescence enhancement ratio is in good linear relation with the concentration of arginine(0~30 μmol/L), the correlation coefficient R² is 0.9914 and the lowest detection limit is 1.3 μmol/L. In addition, the addition of arginine also caused the chiral structure of the probe to deflect, and the changes of binaphthol derivative axial chiral were verified by the changes of the circular dichromatic spectrum.

Key words: binaphthol, fluorescence probe, arginine, chirality