Premium
Viologens and Their Application as Functional Materials
Author(s) -
Striepe Laura,
Baumgartner Thomas
Publication year - 2017
Publication title -
chemistry – a european journal
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.687
H-Index - 242
eISSN - 1521-3765
pISSN - 0947-6539
DOI - 10.1002/chem.201703348
Subject(s) - electrochromism , electrochromic devices , viologen , nanotechnology , materials science , organic radical battery , combinatorial chemistry , computer science , chemistry , organic chemistry , electrochemistry , electrode
Organic materials have recently gained considerable attention for electronic applications, improving performance and sustainability to current technologies. Commercialized metal‐based systems are generally expensive, toxic and difficult to recycle, however organic materials offer promising solutions. Viologens, N , N ′ di‐quaternized bipyridyl salts, are a well‐studied species exhibiting three reversible redox states, possessing valuable electrochromic and electron‐accepting properties. These properties can be fine‐tuned through synthesis by altering the nitrogen substituents and various counteranions. Currently, viologens have become of great interest as functional materials in a wide array of applications; a few to name include electrochromic devices, molecular machines, and organic batteries. This review highlights representative recent work and advances towards utilizing viologens in practical applications that currently compete with metal‐based technologies. Additionally, modified viologens that can be further fine‐tuned will be discussed.