Issue 35, 2022

Acid-base-induced facmer isomerization of luminescent iridium(iii) complexes

Abstract

Luminescent Ir(C^N)3 complexes (C^N = cyclometalated arylpyridine ligand) exist in the form of two stable isomers with distinct photophysical and electrochemical properties: fac and mer. Herein, we show that fac-Ir(C^N)3 complexes can be converted into the thermodynamically less stable mer forms by a consecutive reaction with first acid and then base. The chemically induced isomerization is fast, quantitative, and stereoselective, and it can be inversed by light. The new isomerization process opens the possibility to use highly luminescent Ir(C^N)3 complexes as molecular switches.

Graphical abstract: Acid-base-induced fac → mer isomerization of luminescent iridium(iii) complexes

Supplementary files

Article information

Article type
Edge Article
Submitted
19 Maijs 2022
Accepted
21 Jūl. 2022
First published
22 Aug. 2022
This article is Open Access

All publication charges for this article have been paid for by the Royal Society of Chemistry
Creative Commons BY-NC license

Chem. Sci., 2022,13, 10370-10374

Acid-base-induced facmer isomerization of luminescent iridium(III) complexes

A. Yu. Gitlina, F. Fadaei-Tirani, A. Ruggi, C. Plaice and K. Severin, Chem. Sci., 2022, 13, 10370 DOI: 10.1039/D2SC02808E

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