Switching of the redox centers of a tris-2-mercaptophenolato chromium(III) metalloligand by a guest metal ion

Masanori Wakizaka; Takeshi Matsumoto; Ho-Chol Chang

doi:10.1039/d2dt03502b

Switching of the redox centers of a tris-2-mercaptophenolato chromium(III) metalloligand by a guest metal ion

Dalton Trans. 2023 Feb 7;52(6):1538-1542. doi: 10.1039/d2dt03502b.

Authors

Masanori Wakizaka^{1

2}, Takeshi Matsumoto¹, Ho-Chol Chang¹

Affiliations

¹ Department of Applied Chemistry, Faculty of Science and Engineering, Chuo, University, 1-13-27 Kasuga, Bunkyo-ku, Tokyo 112-8551, Japan. masanori.wakizaka.a7@tohoku.ac.jp.
² Frontier Research Institute for Interdisciplinary Sciences, Tohoku University, 6-3 Aramaki-Aza-Aoba, Aoba-ku, Sendai 980-8578, Japan.

PMID: 36722901
DOI: 10.1039/d2dt03502b

Abstract

This work reports that the redox-active metalloligand (ML) fac-[Cr^III(mp)₃]^3- (mp: 2-mercaptophenolato) coordinates with a Co(III) ion to afford the trianionic complex [Co^III{fac-Cr^III(mp)₃}₂]^3-. The free ML shows ligand-centered redox processes, whereas the guest-metal-bound trinuclear structure exhibited a guest-metal-centered Co(II)/Co(III) redox couple, demonstrating redox switching through guest-metal binding to the MLs.