An ESR study of the interaction of copper (II) octaethylporphyrin with .PI. acceptors.
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概要
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The π-π interaction of octaethylporphyrincopper(II) (Cu(OEP)) with π acceptors has been investigated in solution and in magnetically-diluted crystals by ESR, and the perpendicular components of the ESR parameters for Cu(OEP) in various states have also been determined with considerable accuracy. It has been revealed that, upon the formation of charge-transfer complexes between Cu(OEP) and π acceptors, the <I>g</I> values decrease slightly, the copper hyperfine coupling constants remain almost unchanged, and the absolute values of the nitrogen superhyperfine coupling constants increase slightly. Accompanying changes in the electronic structure around the copper ion have been discussed. The ESR parameters of Cu(OEP) doped in Ni(OEP) have been noted to depend significantly upon the polymorphism of the diluent.
- 公益社団法人 日本化学会の論文
著者
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Iwaizumi Masamoto
Chemical Research Institute of Non-Aqueous Solutions, Tohoku University
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Yokoi Hiroshi
Chemical Research Institute of Non-aqueous Solutions, Tohoku University
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