Synthesis and multimodal characterization of flavonols: electrochemical, spectroscopic, and DFT approaches.
Five flavonols bearing electron-donating and electron-withdrawing substituents were synthesized and characterized by NMR spectroscopy, mass spectrometry, UV-Vis spectroscopy, and cyclic voltammetry. Density functional theory (DFT) and time-dependent DFT (TDDFT) calculations were performed to investigate their molecular...