A highly persistent benzoanthracenyl radical(BAR1)protected by five substituents at strategic positions is synthesized.BAR1 exhibited half-life time of 108 h in air-saturated solution,which allowed for detailed charac...A highly persistent benzoanthracenyl radical(BAR1)protected by five substituents at strategic positions is synthesized.BAR1 exhibited half-life time of 108 h in air-saturated solution,which allowed for detailed characterization in the solution.The combined experimental and theoretical study reveals the properties associated with its asymmetric structure and spin distribution.One-electron oxidation of BAR1 afforded stable cationic species BAR1+,whose structure is unambiguously determined by the NMR spectroscopy.展开更多
基金National Natural Science Foundation of China(No.21971187)Natural Science Foundation of Tianjin,China(No.19JCJQJC62700)Haihe Laboratory of Sustainable Chemical Transformations and Training Plan for Young Core Teachers of Colleges and Universities in Henan Province,China(No.2019GGJS093).
文摘A highly persistent benzoanthracenyl radical(BAR1)protected by five substituents at strategic positions is synthesized.BAR1 exhibited half-life time of 108 h in air-saturated solution,which allowed for detailed characterization in the solution.The combined experimental and theoretical study reveals the properties associated with its asymmetric structure and spin distribution.One-electron oxidation of BAR1 afforded stable cationic species BAR1+,whose structure is unambiguously determined by the NMR spectroscopy.