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Tuning the Emission Color of Cyclometalated Iridium Complex by Extending the π-Electron Delocalization of the Aromatic Chromophore: Synthesis, Photophysical Properties, and X-Ray Crystal Structure
M.O. Ahmed, H.T. Al-Masri, W.K. Leong,
Published in Taylor and Francis Inc.
Volume: 46
Issue: 11
Pages: 1695 - 1700
The authors report the preparation, crystal structure, and emission properties of Ir(btq)2(acac) (btq = 2-benzo[4,5-]thienylquinoline) (1). The compound has been characterised by UV-vis, fluorescence, MALDI-TOF, and1H and13C NMR spectroscopy. The crystal structure was also elucidated by X-ray diffraction methods. Its characteristics in terms of optical and structural properties are compared with the reported cyclometalated Ir(III) complex Ir(btp)2(acac) (2) (btp = 2-benzo[4,5-]thienylpyridine). Complex 1 shows 53nm red-shift emission compared to the related complex 2. © 2016, Taylor & Francis Group, LLC.
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