Stable Iron Porphyrin Intramolecularly Coordinated by Alcoholate Anion: Synthesis and Evaluation of Axial Ligand Effect of Alcoholate on Spectroscopy and Catalytic Activity

Yoshinori Shirakawa, Yuuki Yano, Yuki Niwa, Kanako Inabe, Naoki Umezawa, Nobuki Kato, Yosuke Hisamatsu, Tsunehiko Higuchi

Research output: Contribution to journalArticle

Abstract

We synthesized intramolecularly aliphatic alcoholate-coordinated iron porphyrins (1a, 1b) that retain their axial coordination in the presence of another ligand or oxidant. The electron-donative character of alcoholate was less than that of thiolate, and the coordination ability of a sixth ligand to 1a and 1b was very much lower than in the case of the thiolate-coordinated compounds. Density functional theory calculations indicated that the marked difference in coordination ability could be explained in terms of thermodynamic and steric factors. The catalytic oxidizing ability of the thiolate-coordinated compound, SR complex, was much higher than that of 1a. ©

Original languageEnglish
Pages (from-to)4268-4274
Number of pages7
JournalInorganic chemistry
Volume58
Issue number7
DOIs
Publication statusPublished - 2019 Apr 1

ASJC Scopus subject areas

  • Physical and Theoretical Chemistry
  • Inorganic Chemistry

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