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Electronic states of myricetin. UV-Vis polarization spectroscopy and quantum chemical calculations

Myricetin (3, 3', 4', 5, 5', 7'- hexahydroxyflavone) was investigated by linear dichroism spectroscopy on molecular samples partially aligned in stretched poly(vinyl alcohol) (PVA). At least five electronic transitions in the range 40000 – 20000 cm–1 were characterized with respect to their wavenumbers, relative intensities, and transition moment directions. The observed bands were assigned to electronic transitions predicted with TD-B3LYP/6- 31+G(d, p).

Myricetin ; UV-Vis polarization spectroscopy ; Linear dichroism ; Transition moment directions ; Time-dependent density functional theory

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