Ground and excited state dipole moments of some flavones using solvatochromic methods: An experimental and theoretical study

The absorption and fluorescence characteristics of biologically active flavone derivatives 6-Hydroxy-7,3′,4′,5′-tetramethoxyflavone (6HTMF) and 7-Hydroxy-6,3′,4′,5′-tetramethoxyflavone (7HTMF) are studied at room temperature in solvents of different polarities. Excited state dipole moments of these compounds have been determined using the solvatochromic shift method.91