Anorganisch-Chemisches Institut, Ruprecht-Karls-Universität Heidelberg, Im Neuenheimer Feld 270, 69120, Heidelberg, Germany.
Angew Chem Int Ed Engl. 2017 Mar 13;56(12):3360-3363. doi: 10.1002/anie.201611189. Epub 2017 Feb 17.
The growing demand for efficient batteries has stimulated the search for redox-active organic compounds with multistage redox behavior, as materials with large charge capacity. Herein we report the synthesis and properties of the first hexakis(guanidino)benzene derivative: a strong neutral organic electron donor with reversible multistage redox behavior and a record low redox potential for donation of four electrons. Detailed structural and spectroscopic characterization of three redox states (0, +2, and +4) reveal its unique electronic features. Despite its nitrogen richness, the compound is thermally robust and can be readily purified by sublimation.
对高效电池的需求不断增长，促使人们寻找具有多步氧化还原行为的氧化还原活性有机化合物作为具有大电荷容量的材料。在此，我们报告了首例六（胍基）苯衍生物的合成和性质：一种强中性有机电子给体，具有可逆的多步氧化还原行为和捐赠四个电子的创纪录低氧化还原电位。对三个氧化还原态（0、+2 和+4）的详细结构和光谱表征揭示了其独特的电子特性。尽管其富含氮，但该化合物具有热稳定性，并且可以通过升华轻易地纯化。
