Kodama Takuya, Hirao Yasukazu, Nishiuchi Tomohiko, Kubo Takashi
Department of Chemistry, Graduate School of Science, Osaka University, 1-1 Machikaneyama, Toyonaka, Osaka, 560-0043, Japan.
Chempluschem. 2017 Jul;82(7):1006-1009. doi: 10.1002/cplu.201700045. Epub 2017 Apr 26.
A novel π-extended trinaphtho[3.3.3]propellane (TNP) derivative was prepared and through-space electronic communication in its radical cation species was characterized by electrochemical and spectroscopic methods. Cyclic voltammetry and UV/Vis-NIR titrations suggested weak electronic communication among the three aromatic rings. Variable-temperature ESR measurements of the radical cation showed a drastic change in the spectra in the range of 230-180 K, indicating hopping-type spin delocalization that would originate from migration of a counter anion.
制备了一种新型的π-扩展三萘并[3.3.3]螺桨烷（TNP）衍生物，并通过电化学和光谱方法对其自由基阳离子物种中的空间电子通信进行了表征。循环伏安法和紫外/可见-近红外滴定表明，三个芳环之间存在微弱的电子通信。自由基阳离子的变温电子顺磁共振测量表明，在230-180 K范围内光谱发生了剧烈变化，这表明跳跃型自旋离域可能源于抗衡阴离子的迁移。
