Tuning iridium(III) complexes containing 2-benzo b thiophen-2-yl-pyridine based ligands in the red region

	Tuning iridium(III) complexes containing 2-benzo b thiophen-2-yl-pyridine based ligands in the red region
其他题名	论文其他题名
	Xu M. L.; Wang G. Y.; Zhou R.; An Z. W.; Zhou Q.; Li W.
	2007
发表期刊	Inorganica Chimica Acta
ISSN	0020-1693
卷号	360 期号:10 页码:3149-3154
摘要	Synthesis and characterization of four iridium(III) complexes containing 2-benzo[b]thiophen-2-yl-pyridine based ligands are reported. The absorption, emission, electrochemistry, and thermostability of the complexes were systematically investigated. The (btmp)(2)Ir(acac) (btmp = 2-benzo[b]thiophen-2-yl-4-methyl-pyridyl, acac = acetyl acetone) was characterized using X-ray crystallography. Calculation on the electronic ground state for (btmp)(2)Ir(acac) was carried out using B3LYP density functional theory, HOMO levels are a mixture of Ir and btmp ligand orbitals, while the LUMO is predominantly btmp ligand based. Introduction of substituents (CH3, CF3) into pyridyl ring in a typical red emitter (btp)(2)Ir(acac) leads to a marked decrease in the sublimation temperature, which is more suitable for OLEDs process. Electrochemical studies showed that (btmp)(2)Ir(acac) has a slightly lower oxidation potential, but (btfmp)(2)Ir(acac), (btfmp)(2)Ir(dbm), and (btfmp)(2)Ir(pic) (btfmp = 2-benzo[b]thiophen-2-yl-5-trifluoromethyl-pyridine, dbm = dibenzoylmethane, pic = 2-picolinic acid) containing CF3 group are much difficult to oxidate than (btp)(2)Ir(acac). The emission characteristics of these complexes can be tuned by either changing the substituents and their position on 2-benzo[b]thiophen-2-yl-pyridine or using different monoanionic ligands, showing emission lambda(max) values from 604 to 638 nm in CH2Cl2 solution at room temperature. (c) 2007 Elsevier B.V. All rights reserved.
收录类别	SCI
语种	英语
文献类型	期刊论文
条目标识符	http://ir.ciomp.ac.cn/handle/181722/24891
专题	中科院长春光机所知识产出
推荐引用方式 GB/T 7714	Xu M. L.,Wang G. Y.,Zhou R.,et al. Tuning iridium(III) complexes containing 2-benzo b thiophen-2-yl-pyridine based ligands in the red region[J]. Inorganica Chimica Acta,2007,360(10):3149-3154.
APA	Xu M. L.,Wang G. Y.,Zhou R.,An Z. W.,Zhou Q.,&Li W..(2007).Tuning iridium(III) complexes containing 2-benzo b thiophen-2-yl-pyridine based ligands in the red region.Inorganica Chimica Acta,360(10),3149-3154.
MLA	Xu M. L.,et al."Tuning iridium(III) complexes containing 2-benzo b thiophen-2-yl-pyridine based ligands in the red region".Inorganica Chimica Acta 360.10(2007):3149-3154.

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