Synthesis, characterization, photophysical and electrochemical properties of oxygen bridged twisted heptatomic biphenyl substituted perylene diimides

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• 作者：Jian-Min Wang ; En-Fang He ; Hai-Long Wang ; Wen-Long Hou ; Jing Xu ; Lan Yu ; Le-Le Zhao ; Zhen-Lin Zhang ; Hai-Quan Zhang ; ^{hqzhang@ysu.edu.cn}
• 关键词：Perylene diimide derivatives ; Twisted biphenyl ; Photophysical properties ; Intermolecular aggregation ; The energy level
• 刊名：Chinese Chemical Letters
• 出版年：2017
• 出版时间：February 2017
• 年：2017
• 卷：28
• 期：2
• 页码：383-387
• 全文大小：791 K
• 卷排序：28

文摘

The perylene diimide derivatives (s-THBPDI and d-THBPDI) bearing oxygen bridged twisty heptatomic biphenyl in the bay positions of the perylene core through acetylene bond were designed and synthesized. The photophysical properties of the functionalized dyes were investigated in solution and solid state by UV–vis and photoluminescence (PL) spectra. Their UV–vis and PL spectrum both exhibited the different concentration-dependent behaviors due to the difference of chemical structure. Moreover, cyclic voltammetry results indicated that the introduction of oxygen bridged twisted heptatomic biphenyl could decrease the LUMO energy level of the perylene diimide effectively and made it promising material in photoelectric devices.