Dipolar and V-shaped structures incorporating methylenepyran and diazine fragments
Résumé
Thirteen novel dipolar and V-shaped chromophores with pyranylidene electron-donating part, diazine electron-withdrawing part and various π-linkers were synthesized. The extent of intramol. charge transfer, structure-property relationships and optical properties were further investigated by UV/Vis absorption, electrochem., and DFT calcns.