Electrochemiluminescence Properties of Cylcometalated Iridium(Ⅲ) Complexes Based on 1, 10-Phenanthroline Auxiliary Ligands

TONG Bi-hai; MA Peng; ZHANG Man; DONG Chao-zhen; HUA Zhong-sheng

doi:10.3788/fgxb20143507.0813

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Electrochemiluminescence Properties of Cylcometalated Iridium(Ⅲ) Complexes Based on 1, 10-Phenanthroline Auxiliary Ligands

更新时间：2020-08-12

- Electrochemiluminescence Properties of Cylcometalated Iridium(Ⅲ) Complexes Based on 1, 10-Phenanthroline Auxiliary Ligands
- Chinese Journal of Luminescence Vol. 35, Issue 7, Pages: 813-818(2014)
- 作者机构：
  
  1. 安徽工业大学冶金工程学院,安徽马鞍山,243002
  2. 安徽工业大学分子工程与应用化学研究所,安徽马鞍山,243002
- 作者简介：
- 基金信息：
- DOI：10.3788/fgxb20143507.0813
  CLC： O641.4
- Received：03 March 2014，
  
  Revised：09 April 2014，
  
  Published：03 July 2014
- 稿件说明：
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童碧海, 马鹏, 张曼等. 以邻菲罗啉为第二配体的铱配合物及其电致化学发光性能[J]. 发光学报, 2014,35(7): 813-818

TONG Bi-hai, MA Peng, ZHANG Man etc. Electrochemiluminescence Properties of Cylcometalated Iridium(Ⅲ) Complexes Based on 1, 10-Phenanthroline Auxiliary Ligands[J]. Chinese Journal of Luminescence, 2014,35(7): 813-818
童碧海, 马鹏, 张曼等. 以邻菲罗啉为第二配体的铱配合物及其电致化学发光性能[J]. 发光学报, 2014,35(7): 813-818 DOI： 10.3788/fgxb20143507.0813.

TONG Bi-hai, MA Peng, ZHANG Man etc. Electrochemiluminescence Properties of Cylcometalated Iridium(Ⅲ) Complexes Based on 1, 10-Phenanthroline Auxiliary Ligands[J]. Chinese Journal of Luminescence, 2014,35(7): 813-818 DOI： 10.3788/fgxb20143507.0813.

摘要

设计合成了一系列以邻菲罗啉为第二配体的离子型环金属铱配合物，通过核磁共振和质谱分析对其结构进行了表征，通过紫外吸收光谱、荧光光谱和循环伏安法对其光物理性质进行了研究，并测试了其电致化学发光性能。结果表明：配合物

[（pq）

Ir（phen）]（PF

）和

[（dpq）

Ir（phen）]（PF

）波峰在554.5 nm和566.5 nm处，发射黄色光；

[（pqcm）

Ir（phen）]（PF

）和

[（pqca）

Ir（phen）]（PF

）波峰在621 nm和618.5 nm处，发射红色光。几种配合物的荧光量子效率在2.5%~7.9%之间，配合物

的量子效率最高，为7.9%。配合物

的电致发光效率是最好的，在相同条件下为三联吡啶钌（[Ru（bpy）

]

）的 9.50倍，表明该铱配合物在电致化学发光领域有很好的应用潜力。

Abstract

It is significant to develop new cyclometalated iridium (Ⅲ) complexes with phenylquinoline derivatives because of their good luminescence property. Structure of these complexes were characterized by means of NMR and mass spectra. Photophysical properties were detected by means of ultraviolet spectra

fluorescence spectra and cyclic voltammetry(CV). The electrochemiluminescence properities were also studied. According to the ultraviolet and fluorescence spectra

the iridium(Ⅲ) complex

[(pq)

Ir(phen)](PF

) and

[(dpq)

Ir(phen)](PF

) emit yellow light centered at 554.5 nm and 566.5 nm

while the iridium(Ⅲ) complex

[(pqcm)

Ir(phen)](PF

) and

[(pqca)

Ir(phen)](PF

) emit red light centered at 621 nm and 618.5 nm

which are desirable for organic light-emitting device applications. Their quantum efficiencies are from 2.5% to 7.9%

and the complex

is as high as 7.9%. The ECL efficiency of

is the highest of all

which is 9.50 times than that of [Ru(bpy)

]reference substance. The results suggest that the iridium complex

has a great application potential in ECL detection.

关键词

Keywords

references

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Sun S Q, Song Q J, Yuan H F, et al. Solid-state electrochemiluminescence of a novel iridium (Ⅲ) complex [J]. Chin. Chem. Lett.(中国化学快报), 2008, 19(12):1509-1512 (in English).

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Tong B, Mei Q, Li Z W, et al. Investigation on the electrochemiluminescence properties of a series of cyclometalated iridium (Ⅲ) complexes based on 2-phenylquinoline derivatives [J]. Acta Chim. Sinica (化学学报), 2012, 70(23):2451-2456 (in Chinese).

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Xiong L, Zhao Q, Chen H, et al. Phosphorescence imaging of homocysteine and cysteine in living cells based on a cationic iridium (Ⅲ) complex [J]. Inorg. Chem., 2010, 49(14):6402-6408.

Caspar J V, Meyer T J. Photochemistry of tris (2, 2'-bipyridine) ruthenium (2+) ion (Ru (bpy)32+). Solvent effects [J]. J. Am. Chem. Soc., 1983, 105(17):5583-5590.

Shi M M, Deng D, Chen L, et al. Design and synthesis of dithieno[3,2-b:2' 3'-d]pyrrole-based conjugated polymers for photovoltaic applications: Consensus between low bandgap and low HOMO energy level [J]. J. Polymer Sci. Part A: Polymer Chem., 2011, 49(6):1453-1461.

Lin J. Study on The Synthesis and Electrophosphorescent Properties of A New Ir Complex and Their Application in Biologic Analyze[D]. Qingdao: Qingdao University of Science & Technology, 2011.

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