Journal
JOURNAL OF MATERIALS CHEMISTRY C
Volume 2, Issue 22, Pages 4461-4467Publisher
ROYAL SOC CHEMISTRY
DOI: 10.1039/c4tc00278d
Keywords
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Funding
- MIUR [PRIN 2010N3T9M4, FIRB RBFR10DAK6]
- University of Bologna
- European Research Council ERC StG [278912]
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A family of cyclometalated [lr(III)] complexes containing two F(2)ppy ligands and a bis-oxazoline (box) ancillary ligand, either chiral (1) or achiral (2) has been synthesized. They exhibit photophysical and electrochemical properties quite similar to the isoelectronic and well known [lr(F(2)ppy)(2)(acac)] complex. However, an unprecedented photoreactivity has been observed. Upon UV irradiation of air-equilibrated solutions of both complexes, stable photoproducts containing an [Ir(IV)] metal center are obtained. The photoproducts exhibit highly efficient blue luminescence with good OLED performances. The same [Ir(IV)] complexes are obtained also by electrochemical oxidation.
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