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Cationic Heteroleptic Cyclometalated Iridium Complexes with 1‐Pyridylimidazo[1,5‐α]pyridine Ligands: Exploitation of an Efficient Intersystem Crossing |
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| Authors: | Giorgio Volpi Claudio Garino Dr Luca Salassa Dr Jan Fiedler Kenneth I Hardcastle Prof Roberto Gobetto Prof Carlo Nervi Dr |
| Institution: | 1. Department of Chemistry IFM, University of Turin via P. Giuria 7, 10125 Torino (Italy), Fax: (+39)?011‐6707855;2. The J. Heyrovsky Institute of Physical Chemistry, Dolej?kova 3, Prague (Czech Republic);3. Department of Chemistry, Emory University, 1515 Dickey Drive, Atlanta, Georgia 30322 (USA) |
| Abstract: | Luminescent ligands in IrIII cyclometalated complexes. The photophysical and photochemical properties of Ir‐cyclometalated complexes containing luminescent ligands are evaluated (see figure). Significant admixture between Ir and ligand orbitals induces an efficient intersystem crossing. Photochemical reactions performed in the presence of oxygen lead to new Ir‐cyclometalated complexes containing N(amido) groups directly bound to Ir.  |
| Keywords: | density functional calculations fluorescence intersystem crossing iridium phosphorescence |