meso- 无取代的 5,10,20,25-四(五氟苯基)-[26]六卟啉(1.1.1.1.1.1)生成的稳定非共振单重态双自由基

A stable non-Kekulé singlet biradicaloid from meso-free 5,10,20,25-tetrakis(pentafluorophenyl)-substituted [26]hexaphyrin(1.1.1.1.1.1).

机构信息

Department of Chemistry, Graduate School of Science, Kyoto University, Sakyo-ku, Kyoto 606-8502, Japan.

出版信息

J Am Chem Soc. 2010 Jun 2;132(21):7246-7. doi: 10.1021/ja101040s.

PMID:20455537

Abstract

A meso,meso-diketohexaphyrin was isolated and characterized as a chemically stable non-Kekulé 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.

摘要

一个介-介二酮六吡咯啉被分离并鉴定为化学稳定的非共振单重双自由基。两个未配对电子似乎分布在两个通过 C=O 键隔开的三吡咯单元上。这些结果强调了扩展卟啉实现独特电子态的潜力。