Solvent effects on optical and ESR spectra of one-electron reduced species of cobalt(III) and manganese(III) tetraphenylporphyrins produced by .GAMMA.-radiolysis at 77K.

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概要

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• One-electron reduction by γ-ray irradiation of cobalt(III) and manganese(III) tetraphenylporphyrins (ClCo(III)TPP, ClMn(III)TPP, and IMn(III)TPP) in ethanol and MTHF(2-methyltetrahydrofuran) solutions at 77 K results in the reduction of the central metals of these porphyrins. From the optical and ESR measurements, the reduced species are found to retain the axial anion, Cl<SUP>−</SUP> or I<SUP>−</SUP>, in MTHF but not in ethanol. The absorption spectroscopic studies of these porphyrins in ethanol solutions indicate that the axial halide ion is displaced by an ethanol molecule prior to γ-ray irradiation.

• 公益社団法人 日本化学会の論文

著者

• Imamura Masashi

  Solar Energy Research Group, The Institute of Physical and Chemical Research

• Konishi Shiro

  Solar Energy Research Group, The Institute of Physical and Chemical Research

• Hoshino Mikio

  Solar Energy Research Group, The Institute of Physical and Chemical Research

関連論文

• Solvent effects on optical and ESR spectra of one-electron reduced species of cobalt(III) and manganese(III) tetraphenylporphyrins produced by .GAMMA.-radiolysis at 77K.

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