Electrochemical behavior of the oxygen radical. IV. The reaction mechanism of the electrogenerated hyperoxide ion with bis(acetylacetonato)cobalt(II) in dimethyl sulfoxide and acetone.
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The reaction mechanism of the electrogenerated hyperoxide ion with bis(acetylacetonato)cobalt(II) in dimethyl sulfoxide and acetone has been investigated. The reaction was conducted in a 0.05 mol dm<SUP>−3</SUP> TBAP solution at 20 °C in an open system. Co(acac)<SUB>2</SUB> reacted with the hyperoxide ion which was generated by the controlled potential electrolysis of dissolved oxygen to afford the following product, [(acac)<SUB>2</SUB> Co–O<SUB>2</SUB>–Co(acac)<SUB>2</SUB>]<SUP>2−</SUP>. The complex was separated in solution by column chromatography using alumina as the adsorbent. The electronic spectrum and oxidation state are discussed.
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