Issue 81, 2024

Dual-emitting cyclometalated Ir(iii) complexes with salicylaldimine-bound fluorophores for ratiometric oxygen sensing

Abstract

A new class of oxygen-sensing dual-emitting cyclometalated Ir(III) complexes is described. They function as ratiometric sensors that combine the blue fluorescence from coumarin as a self-referenced internal standard with yellow to red phosphorescence from bis-cyclometalated iridium complexes. The compounds have phosphorescence quantum yields up to 15%, lifetimes ranging from 0.23 to 9.4 μs, and are capable of sensing a wide range of O2 partial pressures.

Graphical abstract: Dual-emitting cyclometalated Ir(iii) complexes with salicylaldimine-bound fluorophores for ratiometric oxygen sensing

Supplementary files

Article information

Article type
Communication
Submitted
29 6 2024
Accepted
16 9 2024
First published
24 9 2024

Chem. Commun., 2024,60, 11572-11575

Dual-emitting cyclometalated Ir(III) complexes with salicylaldimine-bound fluorophores for ratiometric oxygen sensing

S. Tidma, G. D. Sutton, L. T. M. Dang, C. Jiang and T. S. Teets, Chem. Commun., 2024, 60, 11572 DOI: 10.1039/D4CC03220A

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