Recognition Preference of Rhodamine Derivative Bearing Phthalimido Gly for by UV-Vis and Fluorescence Spectroscopy
Figure 1
UV-vis absorption spectra of probe 1 (10.0 M) in the presence of (0–2 equiv.) in C2H5OH-water (4 : 6, v/v) buffered with HEPES solution at room temperature. Inset: (a) showing the change in the color of 1 (10 μM) upon addition of ions (2 equiv.); (b) Job’s plot for determining the stoichiometry of probe 1 and ion by absorbance at 561 nm, the total concentration of [] + [1] was 10 μM.
