A Stable Non-Kekule Singlet Biradicaloid from meso-Free 5,10,20,25-Tetrakis(Pentafluorophenyl)-Substituted [26]Hexaphyrin(1.1.1.1.1.1)
A Stable Non-Kekule Singlet Biradicaloid from meso-Free 5,10,20,25-Tetrakis(Pentafluorophenyl)-Substituted [26]Hexaphyrin(1.1.1.1.1.1)
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DOI：
10.1021/ja101040s
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发表时间：
2010-06-02
影响因子：
15
通讯作者：
Osuka, Atsuhiro
中科院分区：
文献类型：
--
作者：
Koide, Taro;Furukawa, Ko;Osuka, Atsuhiro
分离得到一种中间型、中间型二酮六氢呋喃，其结构为化学稳定的非Kekule单线态双自由基类化合物。两个未配对的电子似乎离域在由C=O键分隔的两个三吡咯单元上。这些结果强调了扩展的卟啉实现独特电子态的潜力。
A meso,meso-diketohexaphyrin was isolated and characterized as a chemically stable non-Kekule singlet biradicaloid. Two unpaired electrons are seemingly delocalized on two tripyrrolic units separated by C=O bonds. These results underscore the potential of expanded porphyrins to achieve unique electronic states.