Phenyl-1H-[1,2,3]triazoles as New Cyclometalating Ligands for Iridium(III) Complexes
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Beyer, Beatrice; Ulbricht, Christoph; Escudero, Daniel; Friebe, Christian; Winter, Andreas; Gonzalez, Leticia; Schubert, Ulrich S.
- Abstract:
- We report on the synthesis and characterization of bis-cyclometalated iridium(III) complexes with
4-phenyl-1H-[1,2,3]triazole, synthesized via a “click”-chemistry approach, as a new type of cyclometalating
ligand. The photophysical and electrochemical properties of these complexes are
investigated experimentally as well as theoretically by using density functional theory. The properties
of these new complexes are compared to their known 2-phenylpyridinato analogues. The emission of
the herein described complexes is clearly influenced by the applied ancillary ligand and can be
adjusted over a broad range of frequencies. The results indicate that the phenyl-1H-[1,2,3]triazole
ligands in general cause a spectral blue shift.
- Year:
- 2009
- Type of Publication:
- Article
- Journal:
- Organometallics
- Volume:
- 28
- Pages:
- 5478 - 5488