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

• Published in: Chinese chemical letters Vol. 28; no. 2; pp. 383 - 387
• Main Authors: Wang, Jian-Min, He, En-Fang, Wang, Hai-Long, Hou, Wen-Long, Xu, Jing, Yu, Lan, Zhao, Le-Le, Zhang, Zhen-Lin, Zhang, Hai-Quan
• Format: Journal Article
• Language: English
• Published: Elsevier B.V 01-02-2017
• Subjects: Intermolecular aggregation; Perylene diimide derivatives; Photophysical properties; The energy level; Twisted biphenyl; Intermolecular aggregation; Twisted biphenyl; Perylene diimide derivatives; The energy level; Photophysical properties
• ISSN: 1001-8417; 1878-5964
• DOI: 10.1016/j.cclet.2016.10.011

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.