Preparation, Properties, and Structures of the Radical Anions and Dianions of Azapentacenes
作者:Lei Ji、Alexandra Friedrich、Ivo Krummenacher、Antonius Eichhorn、Holger Braunschweig、Michael Moos、Sebastian Hahn、Florian L. Geyer、Olena Tverskoy、Jie Han、Christoph Lambert、Andreas Dreuw、Todd B. Marder、Uwe H. F. Bunz
DOI:10.1021/jacs.7b09460
日期:2017.11.8
3-b]phenazine) were reduced to their radical anions and dianions, employing either potassium anthracenide or lithium naphthalenide in THF. The anionic species formed were investigated by UV-vis-NIR, fluorescence and EPR spectroscopy, spectroelectrochemistry, and quantum chemical calculations. Single crystal X-ray structures of three of their radical anions and of three of their dianions were obtained
一系列二氮杂五苯(5,14-二乙炔基二苯并[b,i]吩嗪、6,13-二乙炔基萘并[2,3-b]吩嗪)和四氮杂五苯(7,12-二乙炔基苯并[g]喹喔啉[2,3-b]喹喔啉,6,13-二乙炔基喹喔啉并[2,3-b]吩嗪)被还原为它们的自由基阴离子和二价阴离子,在THF中使用蒽钾或萘化锂。通过紫外-可见-近红外、荧光和 EPR 光谱、光谱电化学和量子化学计算研究了形成的阴离子物质。获得了它们的三个自由基阴离子和三个二价阴离子的单晶 X 射线结构。与并苯相反,氮杂并五苯的阴离子是持久的,在某些情况下,甚至对空气中度稳定,并被表征。