Phosphorescent Bismoviologens for Electrophosphorochromism and Visible Light-Induced Cross-Dehydrogenative Coupling

• DOI: 10.1021/jacs.0c12015
• Publication Date: 2021-01-04T07:47:38Z
• Authors: Wenqiang Ma; Letian Xu; Sikun Zhang; Guoping Li; Tianyu Ma; Bin Rao; Mingming Zhang; Gang He
• Keywords: Viologen; Bismuth; Visible spectrum

A series of novel bismuth-bridged viologen analogues, bismoviologens (BiV2+), synthesized through a combination bismuth atom and skeleton is reported. Their optical electrochemical properties were fine-tuned the N-arylation or N-alkylation reactions. Bismolviologens not only showed good redox but also exhibited phosphorescence under ambient conditions (in air at room temperature). This phenomenon makes BiV2+ first examples phosphorescent analogues reported to date. On basis excellent unique BiV2+, their electrophosphorochromic devices fabricated. Furthermore, was used for time as both photocatalyst electron mediator in visible light-induced cross-dehydrogenative coupling