Synthesis of hypervalent sulfur atoms annelated with a acene and it's development to functional materials

由于功能材料分子设计的灵活性，具有不溶性发色团的树枝状大分子引起了人们的极大关注。我们报道了树枝状官能化的富勒烯和镉硫化物的合成。它们可溶于各种溶剂，是产生单线态氧的有效光敏剂。同时，六硫戊烯因其高的空穴输运迁移率而被研究为OFET中的活性材料。然而，由于六硫杂戊烯不溶于有机溶剂，因此其在溶液中的性质尚不清楚，即核磁共振、紫外可见光谱，以及室温下六硫杂戊二烯溶液的荧光光谱尚未见报道。本文介绍了六硫戊二烯树枝状大分子的合成及其作为单线态氧的光敏剂的光氧化反应。

Dendrimer with insoluble chromophore have attracted considerable attention because of the flexibility of molecular design for functional materials. We have reported the synthesis of dendron-functionalized fullerene and cadmium chalcogenide. They are soluble in various solvents and act as effective photosensitizers to generate singlet oxygen.Meanwhile, hexathiopentacene has been studied as an active material in OFETs because of its high hole transport mobility. However, hexathiopentacene is insoluble in organic solvents, Hence the properties of the hexathiopentacene in solution are still unclear, i.e., NMR, UV-Vis, and fluorescence spectra of the solution of hexathiopentacene at room temperature have never been reported. Here we present the synthesis of hexathiopentacene dendrimer together with photooxygenation reaction using hexathiopentacene dendrimer as a photosensitizer of singlet oxygen.