Reaction, Structure And Spectroscopic Properties Of Bis(Cyano) Cobalt(Iii) Porphyrin Complexes
JOURNAL OF PORPHYRINS AND PHTHALOCYANINES(2021)
摘要
Cyanocobalamin and analogues have drawn much attention for the promising applications in photovoltaic and photocatalytic systems. In this study, two low spin bis(cyano) cobalt(III) porphyrin complexes [K(222)][Co-III(TPP)(CN)(2)] and [K(222)][Co-III(TMP)(CN)(2)] (222 = 4,7,13,16,21,24-hexaoxo-1,10-diazabicyclo[8.8.8]hexacosane, TPP = meso-tetraphenylporphyrin dianion, TMP = meso-tetramesitylporphyrin dianion), which were isolated from the reactions between [Co-II(Porph)] (Porph = Porphyrin) and [K(222)(CN)], are characterized by a single crystal X-ray diffraction, FT-IR and UV-vis spectroscopies. Combined UV-vis and electron paramagnetic resonance (EPR) investigations have been conducted to understand the reaction mechanisms. The work gives new insights into the reactivities and spectroscopic properties of cyano cobalt macrocyclic complexes.
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关键词
cobalt, cyano, porphyrin, UV-vis, EPR
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