Chiral Stable Phenalenyl Radical: Synthesis, Electronic-Spin Structure, and Optical Properties of [4]Helicene-Structured Diazaphenalenyl
作者:Akira Ueda、Hideki Wasa、Shuichi Suzuki、Keiji Okada、Kazunobu Sato、Takeji Takui、Yasushi Morita
DOI:10.1002/anie.201202654
日期:2012.7.2
old system: The title neutral radicals have been synthesized and characterized for the first time. Thanks to two terminal methoxy groups and three tert‐butyl groups, the chiral radicals are configurationally and chemically stable. The three‐dimensional π‐electron network shows extensive spin delocalization, and the distinct CD properties are attributed to the chirality of the helicene unit (see picture)
旧系统的新变化:标题中性基团已被首次合成和表征。得益于两个末端甲氧基和三个叔丁基,该手性基团在结构和化学上均稳定。三维π电子网络显示出广泛的自旋离域,并且独特的CD特性归因于the烯单元的手性(参见图片)。