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viologens
EntityQ845218· pop 10· linked from 19 articles

Also known as viologen

thumb|220px|class=skin-invert-image|Paraquat is a prominent viologen. Viologens are a family of organic compounds with the formula (C5H4NR)2n+(X-)2. They are N-alkyl derivatives of bipyridines. In some viologens, the pyridyl groups are further modified.

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Encyclopedic overview

7 sections
Contents
  • Types of viologens
  • Redox properties
  • Research
  • Modified viologens and related compounds
  • Applications
  • References
  • External links

thumb|220px|class=skin-invert-image|Paraquat is a prominent viologen. Viologens are a family of organic compounds with the formula (C5H4NR)2n+(X-)2. They are N-alkyl derivatives of bipyridines. In some viologens, the pyridyl groups are further modified.

The viologen paraquat (R = methyl), is a widely used herbicide. As early as in the 1930s, paraquat was being used as an oxidation-reduction indicator, because it becomes violet on reduction.

Excerpted from Wikipedia’s “viologens” article, available under the CC BY-SA 4.0 licence.

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