Research Article

Synthesis and Photo- and Ionochromic and Spectral-Luminescent Properties of 5-Phenylpyrazolidin-3-one Azomethine Imines

Figure 5

Electronic spectra of 4 in acetonitrile (). (a) Absorption before (1) and after addition of F (2), CN (3), AcO (4), and H2PO4 (5) (). (b) Fluorescence before (1) and after addition of F (2).
(a)
(b)