Photochromic dinuclear iridium(III) complexes having phenoxyl-imidazolyl radical complex derivatives

Yoshinori Okayasu; Takuya Miyahara; Rintaro Shimada; Yuki Nagai; Akira Sakamoto; Jiro Abe; Yoichi Kobayashi

doi:10.1039/d3cc02208k

Photochromic dinuclear iridium(III) complexes having phenoxyl-imidazolyl radical complex derivatives

Chem Commun (Camb). 2023 Jul 13;59(57):8850-8853. doi: 10.1039/d3cc02208k.

Authors

Yoshinori Okayasu¹, Takuya Miyahara¹, Rintaro Shimada², Yuki Nagai¹, Akira Sakamoto², Jiro Abe², Yoichi Kobayashi^{1

3}

Affiliations

¹ Department of Applied Chemistry, College of Life Sciences, Ritsumeikan University, Kusatsu, Shiga 525-8577, Japan. ykobayas@fc.ritsumei.ac.jp.
² Department of Chemistry and Biological Science, College of Science and Engineering, Aoyama Gakuin University, 5-10-1 Fuchinobe, Chuo-ku, Sagamihara, Kanagawa 252-5258, Japan. jiro_abe@chem.aoyama.ac.jp.
³ Precursory Research for Embryonic Science and Technology (PRESTO), Science and Technology Agency (JST), 4-1-8 Honcho, Kawaguchi, Saitama 332-0012, Japan.

PMID: 37368414
DOI: 10.1039/d3cc02208k

Abstract

We demonstrate that the phenoxyl-imidazolyl radical complex (PIC), which is a rate-tunable fast photoswitch, can be used as a ligand that directly coordinates with iridium (III) ions. The iridium complexes show the characteristic photochromic reactions originating from the PIC moiety, whereas the behaviour of transient species is substantially different from that of the PIC.