激发态
开壳
单重态
基态
化学
三重态
单重态裂变
电子结构
取代基
电子顺磁共振
直接的
光化学
计算化学
原子物理学
立体化学
物理
核磁共振
有机化学
作者
Yuanting Su,Xingyong Wang,Xin Zheng,Zaichao Zhang,You Song,Yunxia Sui,Yi‐Zhi Li,Xinping Wang
标识
DOI:10.1002/anie.201309458
摘要
Three bis(triarylamine) dications were isolated by using weakly coordinating anions. Their electronic structures in the ground state were investigated by various experiments in conjunction with theoretical calculations. The ground-state electronic structures of these species were tunable by substituent effects, with two of them as closed-shell singlets and one of them as an open-shell singlet in the solid state. The excited state of the latter is thermally accessible, indicated by EPR and SQUID measurements. The work provides a new and stable diradicaloid structure motif with an excited triplet sate.
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