三重链接卟咯二聚体。
Triply Linked Corrole Dimers.
机构信息
Department of Chemistry, Graduate School of Science, Kyoto University, Sakyo-ku, Kyoto, 606-8502, Japan.
Spectroscopy Laboratory for Functional π-Electronic Systems and Department of Chemistry, Yonsei University, Seoul, 120-749, Korea.
出版信息
Angew Chem Int Ed Engl. 2016 May 23;55(22):6535-9. doi: 10.1002/anie.201601864. Epub 2016 Apr 1.
The oxidation of 10-10' singly linked corrole dimers with DDQ at low concentration in CHCl3 afforded meso-meso, β-β, β-β triply linked 2H-corrole dimers (with two inner NH groups in each corrole unit), which exhibited characteristic (1) H NMR and absorption spectra attributable to their nonaromatic electronic networks. These 2H-corrole dimers were reduced with NaBH4 to aromatic 3H-corrole dimers, which were unstable and easily oxidized back to the 2H-corrole dimers upon exposure to air. Bis(zinc(II)) complexes of the 2H-corrole dimers were synthesized and characterized as rare examples of nonaromatic zinc(II) corrole complexes.
在 CHCl3 中低浓度下，用 DDQ 氧化 10-10' 单线连接的卟啉二聚体，得到中位-中位、β-β、β-β 三重连接的 2H-卟啉二聚体（每个卟啉单元中有两个内 NH 基团），其表现出特征的（1）H NMR 和吸收光谱，归因于它们的非芳香电子网络。这些 2H-卟啉二聚体用 NaBH4 还原为芳香 3H-卟啉二聚体，它们不稳定，暴露于空气中时容易氧化回 2H-卟啉二聚体。2H-卟啉二聚体的双（锌（II））配合物被合成并表征，作为非芳香锌（II）卟啉配合物的罕见实例。
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