Research Article
Synthesis and Photo- and Ionochromic and Spectral-Luminescent Properties of 5-Phenylpyrazolidin-3-one Azomethine Imines
Figure 7
Electronic absorption spectra of 4 in acetonitrile () before (1) and after addition of CF3COOH: (2), (3), (4), (5), (6), and (7).