Frontier Institute of Science and Technology, State Key Laboratory for Strength and Vibration of Mechanical Structures, Key Laboratory of Shaanxi Province for Craniofacial Precision Medicine Research, College of Stomatology, Xi'an Jiaotong University, Xi'an, Shaanxi 710054, P. R. China.
Frontier Institute of Science and Technology, Xi'an Jiaotong University, Xi'an, Shaanxi 710049, P. R. China.
J Am Chem Soc. 2021 Jan 27;143(3):1590-1597. doi: 10.1021/jacs.0c12015. Epub 2021 Jan 3.
A series of novel bismuth-bridged viologen analogues, bismoviologens (BiV), synthesized through a combination of a bismuth atom and viologen skeleton is reported. Their optical and electrochemical properties were fine-tuned through the -arylation or -alkylation reactions. Bismolviologens not only showed good redox properties but also exhibited phosphorescence under ambient conditions (in air at room temperature). This phenomenon makes BiV the first examples of phosphorescent viologen analogues reported to date. On the basis of the excellent and unique redox and optical properties of BiV, their electrophosphorochromic devices were fabricated. Furthermore, BiV was used for the first time as both a photocatalyst and electron mediator in visible light-induced cross-dehydrogenative coupling reactions.
本文报道了一系列通过铋原子与紫罗精骨架结合合成的新型铋桥联紫罗精类似物（BiV）。通过芳基化或烷基化反应对它们的光学和电化学性质进行了精细调节。铋紫罗精不仅表现出良好的氧化还原性质，而且在环境条件下（在室温下的空气中）显示出磷光。这一现象使得 BiV 成为迄今为止报道的首例磷光紫罗精类似物。基于 BiV 优异且独特的氧化还原和光学性质，制备了它们的电致磷光变色器件。此外，BiV 首次被用作可见光诱导的交叉脱氢偶联反应中的光催化剂和电子介体。
