Oxadisilole fused pentacenequinones and heptacenequinones

摘要

Stable,organic solvent soluble bis-and tetrakis-oxadisilole fused pentacenequinones (5a-b) and heptacenequinones (11a-b) were synthesized.Double Diels-Alder and fourfold aldol-condensation approaches were used.Absorption,emission and fluorescence quantum yield of the previously unknown acenequinones 5a and 11a were characterized.The role of the oxadisilole substituent on the photophysical properties was addressed.