Room-temperature UV-Vis absorption spectra, PL spectra of POA in ethyl acetate and thin films, as well as its phosphorescence spectrum in 2-methyltetrahydrofuran at 77 K.
Synthesis route, conditions and reagents of the target compound: (a) NaN3, CF3COOH, CH2Cl2; (b) HCOONH4, 10% Pd/C, CH3COOC2H5; (c) NaH, DMF; (d) HAc, CH3OH; (e) NaBH4, CH3OH.