First electrogeneration of a platinum(IV) porphyrin: elucidation of the PtII/IV and PtIV/II oxidation-reduction processes in nonaqueous media
作者： Zhongping Ou , Ping Chen , Karl M. Kadish
DOI: 10.1039/C0DT00899K
关键词:
摘要: The first example for electrogeneration of a Pt(IV) porphyrin from its Pt(II) form is presented and the PtII/IV reverse PtIV/II oxidation-reduction processes are elucidated by electrochemistry thin-layer UV-visible spectroelectrochemistry. Three products, [(TPP˙+)PtII]+, [(TPP)PtIV]2+ [(TPP˙+)PtIV]3+, produced electrooxidation have been characterized in situ spectroelectrochemistry ESR measurements after controlled potential bulk electrolysis. definitive evidence electrochemical conversion to also presented. this electroreduction highly dependent upon nature anion, ClO4− or Cl−. A mechanism reversible between tetraphenylporphyrins proposed.
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