Luminescence of flavonoid compounds
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The insertation of an electron-donor substituent into the flavone molecule leads to a decrease in the energy of the first excited S ππ * state and to a change in the relative arrangement of the nπ* andππ* levels. The theory was expressed that 3-hydroxyflavone can exist in two associative forms.
The luminescence spectra of 4'-hydroxyflavone and 7-hydroxyflavone depend on the wavelength of the exciting radiation.
KeywordsRadiation Flavonoid Flavone Luminescence Spectrum Flavonoid Compound
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