4 years ago

Facile Synthesis of π-Extended Viologens: Electron-Deficient Polycyclic Aza-aromatics

Facile Synthesis of π-Extended Viologens: Electron-Deficient Polycyclic Aza-aromatics
Kunmu Cheng, Yihui Yang, Donghui Shi, Dayong Liu, Bo Liu, Mingyu Yang, Jing Li, Junfa Wei, Yao Lu, Heng Liu, Mingjie Song, Wenliang Wang
A novel family of π-extended viologens has been synthesized by a concise 3-step route from simple and readily available chemicals. The π-enlargement gives the system new photophysical and electrochemical properties such as photoluminescence and changed redox potentials. A new family of π-extended viologens, in which two pyridine rings are bridged by two o-phenylene subunits, has been designed and synthesized via a very concise route from simple and readily available chemicals. Two representative π-extended viologens were studied by X-ray crystallographic analysis. The π-extended viologens exhibit admirable physicochemical properties such as intense emissions, reversible redox property and tunable oxidative potentials as well as high thermal stability.

Publisher URL: http://onlinelibrary.wiley.com/resolve/doi

DOI: 10.1002/chem.201700018

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