viologen

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viologen

[vī′äl·ə·jən]
(chemistry)
Any member of a group of chlorides of certain quaternary bases derived from γ,γ′-dipyridyl that are used as oxidation-reduction indicators; color is exhibited in the reduced form.
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References in periodicals archive ?
Continuous glucose detection using boronic acid-substituted viologens in fluorescent hydrogels: linker effects and extension to fiber optics.
2 Electrochromic Materials Suitable for Smart Windows: Metal Oxides, Polymers and Viologens 2.
A dedicated chapter on electrochromic smart windows talks about evolution of this market segment, metal oxides, polymers and viologens, manufacturing developments and need for improvements, products and suppliers - including The EC Windows Supply Chain, ChromoGenics (Sweden), Continental Automotive Systems, EControl-Glas (Germany), e-Chromic Technologies (United States), Gentex (United States), Gesimat (Germany), NexTint (United States), Sage Electrochromics (United States) and View - eight-year forecasts of electrochromic materials in smart windows covering five reasons to be bullish about EC smart windows and a note on switching speeds and how they influence materials choice.