Redox reactions of amidato-bridged cis-diammineplatinum(III) dinuclear complexes with phenol

Shuntaro Hyodo, Masatoshi Kishi, Hiroyuki Fukushima, Satoshi Iwatsuki, Koji Ishihara, Kazuko Matsumoto

Research output: Contribution to journalArticle

5 Citations (Scopus)

Abstract

Kinetic studies of the redox reactions of the head-to-tail (HT) α-pyridonato-bridged cis-diammineplatinum(III) dinuclear complex and of the head-to-head (HH) α-pyridonato-bridged and α-pyrrolidonato- bridged cis-diammineplatinum(III) dinuclear complexes with phenol were performed in acidic aqueous solution. Reduction of the HH Pt III dinuclear complexes with phenol proceeded only at pH > 3, whereas that of the HT Pt III dinuclear complex with phenol proceeded even at a pH as low as zero. The kinetic evaluations revealed that the Pt III dinuclear complexes are not reduced by the phenol molecule but are reduced by the phenoxide ion, and the reduction reaction proceeds through an outer-sphere electron-transfer mechanism.

Original languageEnglish
Pages (from-to)5571-5577
Number of pages7
JournalEuropean Journal of Inorganic Chemistry
Issue number33
DOIs
Publication statusPublished - 2012 Nov 1

Keywords

  • Amidate
  • Phenol
  • Platinum
  • Reaction mechanisms
  • Redox chemistry

ASJC Scopus subject areas

  • Inorganic Chemistry

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