Synthesis, crystal structure and photophysical properties of a series of new neutral iridium(III) complexes with 2-phenylpyridine |
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| Authors: | Xuan Shen Hao Yang Xiu-Hua Hu Yan Xu Feng-Ling Wang Su Chen Dun-Ru Zhu |
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| Affiliation: | aCollege of Chemistry and Chemical Engineering, State Key Laboratory of Materials-oriented Chemical Engineering, Nanjing University of Technology, Nanjing 210009, China |
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| Abstract: | A series of new neutral iridium(III) complexes containing strong-field ancillary ligands, Ir(ppy)2(PPh3)L] (ppy = 2-phenylpyridine, PPh3 = triphenylphosphine, L = NCS−, 1; , 2; NCO−, 3), have been synthesized and fully characterized by 1H NMR, IR, ESI mass spectral and elemental analysis. The crystal structure of 1 has been determined by X-ray analysis. The photoluminescence (PL) spectra of 1–3 show emission maxima at 477, 489 and 485 nm, respectively, corresponding to blue light-emitting of 1 and blue-green light-emitting of 2 and 3. PL quantum yields (PLQYs) of 1–3 are 0.39, 0.13 and 0.43, respectively. |
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| Keywords: | Neutral iridium(III) complexes Strong-field ligands Crystal structure Photoluminescence Blue– green light emitting PL quantum yields |
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