β to β Terpyridylene–bridged porphyrin nanorings
作者： Bangshao Yin , Xu Liang , Weihua Zhu , Ling Xu , Mingbo Zhou
DOI: 10.1016/J.CCLET.2017.05.003
关键词:
摘要: Abstract 6,6″-Terpyridylene bridged cyclic porphyrin dimer 2Ni, trimer 3Ni, tetramer 4Ni and pentamer 5Ni were obtained through Suzuki-Miyaura coupling reaction of β,β′-diboryl Ni(II) with 6,6″-dibromo-2,2′:6′,2″-terpyridine. Free base nanorings 2H-5H by demetallation 2Ni-5Ni sulfuric acid in CHCl3 then converted into 2Zn-5Zn upon treatment Zn(OAc)2 quantitative yields, respectively. All these newly synthesized characterized high-resolution mass spectrometry 1H NMR spectroscopy. The photophysical properties nanoring examined UV–vis fluorescence spectra. electrochemical 2Ni–5Ni investigated voltammetry differential pulse voltammetry. absorption spectra arrays indicate that there exist unique electronic interactions between the constituent units each ring. Electrochemical analysis shows 3Ni exhibit different redox behavior, which are presumably more coplanar than other arrays.
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