Synthesis, Crystal Structure and Photophysical Properties of Iridium(Ⅲ) Complex Based on 4-methyl-2-phenylquinoline and Pentane-2,4-dione Ligands

doi:10.3788/fgxb20133407.0816

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Synthesis, Crystal Structure and Photophysical Properties of Iridium(Ⅲ) Complex Based on 4-methyl-2-phenylquinoline and Pentane-2,4-dione Ligands

更新时间：2020-08-12

- Synthesis, Crystal Structure and Photophysical Properties of Iridium(Ⅲ) Complex Based on 4-methyl-2-phenylquinoline and Pentane-2,4-dione Ligands
- Chinese Journal of Luminescence Vol. 34, Issue 7, Pages: 816-823(2013)
- 作者机构：
  
  1. 太原理工大学新材料界面科学与工程教育部重点实验室,山西太原,030024
  2. 南京邮电大学有机电子与信息显示国家重点实验室培育基地信息材料与纳米技术研究院,江苏南京,210046
  3. 太原理工大学新材料工程技术研究中心,山西太原,030024
- 作者简介：
- 基金信息：
- DOI：10.3788/fgxb20133407.0816
  CLC： TN383+.1
- Received：02 April 2013，
  
  Revised：25 April 2013，
  
  Published：10 July 2013
- 稿件说明：
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陶鹏, 赵强, 景姝, 汪静霞, 吕壮, 陈柳青, 王华. 一种橙光磷光铱(Ⅲ)配合物的合成、晶体结构及光电性质研究[J]. 发光学报, 2013,34(7): 816-823

TAO Peng, ZHAO Qiang, JING Shu, WANG Jing-xia, LÜ Zhuang, CHEN Liu-qing, WANG Hua. Synthesis, Crystal Structure and Photophysical Properties of Iridium(Ⅲ) Complex Based on 4-methyl-2-phenylquinoline and Pentane-2,4-dione Ligands[J]. Chinese Journal of Luminescence, 2013,34(7): 816-823
陶鹏, 赵强, 景姝, 汪静霞, 吕壮, 陈柳青, 王华. 一种橙光磷光铱(Ⅲ)配合物的合成、晶体结构及光电性质研究[J]. 发光学报, 2013,34(7): 816-823 DOI： 10.3788/fgxb20133407.0816.

TAO Peng, ZHAO Qiang, JING Shu, WANG Jing-xia, LÜ Zhuang, CHEN Liu-qing, WANG Hua. Synthesis, Crystal Structure and Photophysical Properties of Iridium(Ⅲ) Complex Based on 4-methyl-2-phenylquinoline and Pentane-2,4-dione Ligands[J]. Chinese Journal of Luminescence, 2013,34(7): 816-823 DOI： 10.3788/fgxb20133407.0816.

摘要

采用二氯甲烷为溶剂

无水碳酸钾为缚酸剂

在25℃温和条件下

以2-苯基-4-甲基喹啉铱(III)氯桥二聚体[(4m2pq)

Ir(

-Cl)

Ir(4m2pq)

]和乙酰丙酮(Hacac)进行配位

反应合成了新型铱(Ⅲ)配合物[(4m2pq)

Ir(acac)]。通过核磁共振氢谱(

H NMR)、碳谱(

C NMR)、X射线单晶衍射等确定分子结构

利用紫外-可见吸收光谱、发射光谱对其光物理性质进行研究。结果表明:(4m2pq)

Ir(acac)的单晶结构属三斜晶系

空间群为

1;(4m2pq)

Ir(acac)在二氯甲烷溶液中呈橙光发射

发射峰为597 nm

磷光寿命0.33 s

量子效率达50.4%。以(4m2pq)

Ir(acac)为客体掺杂在CBP中

制备了结构为ITO/NPB(30 nm)/CBP:(4m2pq)

Ir(acac) (质量分数6%和 8%

20 nm)/BCP(10 nm)/Alq

(20 nm)/LiF(1 nm)/Al(150 nm)的橙色磷光有机电致发光器件

器件的最大亮度达到39 667 cd/m

发射峰位于597 nm

最大电流效率为14.2 cd/A

最大功率效率为8.1 lm/W。

Abstract

A metal complex[(4m2pq)

Ir(acac)] was synthesized under mild condition of dichloromethane as solvent and potassium carbonate as deacid reagent at 25℃

where "4m2pq" is the ortho-C-deprotonated derived from 4-methyl-2-phenylquinoline and "acac" is derived from pentane-2

4-dione. The molecular structure of (4m2pq)

Ir(acac) was characterized by

H NMR spectral

C NMR spectrum and X-ray diffraction. UV-visible absorption spectrum

photoluminescence spectrum

luminescence quantum yields and phosphorescence lifetime were measured for studying photophysical properties of (4m2pq)

Ir(acac). The single crystal structure of (4m2pq)

Ir(acac) is in triclinic and space group

1. The orange phosphorescent emission with high fluorescence quantum efficiencies of 50.4% and lifetime of 0.33 s can be observed with peaks at 597 nm in degassed CH

solution at room temperature. Moreover

(4m2pq)

Ir(acac) was utilized as phosphorescence dopant in OLEDs with the structures of ITO/NPB (30 nm)/CBP:(4m2pq)

Ir(acac) (mass fraction of 6% and 8%

20 nm)/BCP (10 nm)/Alq

(20 nm)/LiF (1 nm)/Al. The device showed orange emission at 597 nm

maximum brightness of 39 667 cd/m

current efficiency of 14.2 cd/A

and power efficiency of 8.1 lm/W.

关键词

Keywords

references

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