Synthesis and photoelectric study of 6, 13-dibenzylpentacene

Abstract 6, 13-Dibenzylpentacene was first synthesized. The introduction of benzyl group largely improved the solubility. At the visible region, its maximum absorption in CHCl 3 was found at 604.5 nm. The fluorescence spectrum shows that its emitting peak is at 624 nm. Cyclic voltammetry gave its forbidden-band gap of 2.02 eV. Photooxidation test showed that 6, 13-dibenzylpentacene in CHCl 3 is sensitive to ambient light, but sluggish to oxygen. Noticeably, 6, 13-dibenzylpentacene is stable in solid state.