The multiple redox states and electrochromic nature of viologens have earned them a prominent role in many materials, from catalytic photochemical processes to organic electrochromic materials.  However, the nucleophilic nature of the pyridine nitrogen has placed practical limits on the type of N-aryl substituted viologens that are available.  We have recently worked out the synthesis of asymmetrical viologens where one or more of the groups is electron rich.  The characterization and electrochemistry of new viologens will be discussed.

New electron rich aryl viologens

251st National Meeting (2016)

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