Hammett-law correlation in the electron-donation ability of trans-heteroleptic benzoate-bridged paddlewheel-type diruthenium(II,II) complexes

Yoshihiro Sekine, Kinanti H. Aliyah, Tomoka Shimada, Jun Zhang, Wataru Kosaka, Hitoshi Miyasaka

Research output: Contribution to journalArticlepeer-review

2 Citations (Scopus)

Abstract

A series of trans-heteroleptic paddlewheel-type diruthenium(II,II) complexes [Ru2(2,6-(CF3)2PhCO2)2(p-RPhCO2)2-(THF)2] was synthesized by substituting para-R-substituted benzoate ligands (p-RPhCO21, R = CF3, Cl, F, H, Ph, Me, MeO, OH) in [Ru2(p-RPhCO2)4(THF)2] with 2,6-bis(trifluoromethyl)-benzoate (2,6-(CF3)2PhCO21). The redox potential (E1/2) for the [Ru2II,II]/[Ru2II,III]+ couple and the HOMO energy level were linearly dependent on the acidity (pKa) of the substituted benzoic acids (p-RPhCO2H) and Hammett constants of p-R substitution groups.

Original languageEnglish
Pages (from-to)693-696
Number of pages4
JournalChemistry Letters
Volume47
Issue number5
DOIs
Publication statusPublished - 2018 Jan 1

Keywords

  • Electrochemistry
  • Electron-donation ability
  • Trans-Heteroleptic paddlewheel-type diruthenium complex

ASJC Scopus subject areas

  • Chemistry(all)

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