Journal
DALTON TRANSACTIONS
Volume 44, Issue 4, Pages 1858-1865Publisher
ROYAL SOC CHEMISTRY
DOI: 10.1039/c4dt02809k
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Funding
- Opening Project of the Jiangsu Key Laboratory for Environment Functional Materials [SJHG1305]
- Natural Science Foundation of Jiangsu Province [BK20131152]
- Excellent Innovation Team in Science and Technology of University in Jiangsu Province
- University Scientific Research Project of Jiangsu Province [11KJB430012]
- Scientific Research Foundation of the Chinese Ministry of Education [[2013] 693]
- National Natural Science Foundation of China [21107077, 21103119, 21005084]
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A series of cyclometalated iridium(III) complexes with 2-phenylquinoline ligand (1-4) were designed and synthesized, which were thoroughly investigated by the photophysics, electrochemistry, theoretical calculations and electrochemiluminescence (ECL). By incorporating methyl groups into the 2-phenylquinoline, the corresponding complexes 2 and 3 displayed lower oxidative potential and higher HOMO energy levels. Most importantly, compared with tris(2,2'-bipyridyl)ruthenium(II) ([Ru(bipy)(3)](2+)), these iridium(III) complexes demonstrated more intense ECL in acetonitrile solutions.
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