title: Highly efficient electrochemiluminescence from iridium(III) complexes with 2-phenylquinoline ligand.
abstract: 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.
authors.affiliation: Jiangsu Key Laboratory of Environmental Functional Materials, School of Chemistry, Biology and Material Engineering, Suzhou University of Science and Technology, Suzhou, Jiangsu 215009, P. R. China. zhouyuyang@mail.usts.edu.cn.
authors.forename: Yuyang
authors.initials: Y
authors.lastname: Zhou
authors.forename: Wanfei
authors.initials: W
authors.lastname: Li
authors.forename: Linpo
authors.initials: L
authors.lastname: Yu
authors.forename: Yang
authors.initials: Y
authors.lastname: Liu
authors.forename: Xiaomei
authors.initials: X
authors.lastname: Wang
authors.forename: Ming
authors.initials: M
authors.lastname: Zhou
mesh_terms: D056831:Coordination Complexes / Q000138:chemical synthesis / Q000737:chemistry*; D004563:Electrochemistry; D007495:Iridium / Q000737:chemistry*; D008024:Ligands; D049449:Luminescence; D011804:Quinolines / Q000737:chemistry*
chemical_list: C541577:2-phenylquinoline; D056831:Coordination Complexes; D008024:Ligands; D011804:Quinolines; D007495:Iridium