N-heterocyclic olefin-functionalized bipyridine introduces intraligand charge-transfer and proton-responsive photophysics into an Ir( iii ) complex

Dalton Transactions 2026

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Authors: Sven Lempereur, Felix Glaser, Martin Pižl, Leon Schöndorf, Michael Seidl, Fabian Dielmann, Ludovic Troian‐Gautier
DOI: 10.1039/d6dt01458e
Cited by: 1
References: 57

Abstract

an intense intraligand charge transfer (ILCT). In comparison with the parent Ir-bpy analogue, Ir-NHO exhibits a pronounced emission blue shift of 60 nm (0.23 eV), arising from destabilization of the HOMO localized on the bpy-NHO ligand. Protonation reversibly suppresses these electronic effects, yielding photophysical properties closely resembling those of the parent complex. These findings highlight the potential of NHO-functionalized ligands for the design of switchable photosensitizers and multifunctional photoactive systems.

Fields of Study & Subjects

Metalloenzymes and iron-sulfur proteins Organometallic Complex Synthesis and Catalysis Metal complexes synthesis and properties

Publication details

Journal / source
Dalton Transactions
Publisher
Royal Society of Chemistry (RSC)
Volume
55
Issue
31
Pages
11561–11574
Publication date
1 January 2026
Language
EN