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化学学报
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化学学报 ›› 2008, Vol. 66 ›› Issue (19): 2141-2145. 上一篇    下一篇

研究论文

新型含吡咯亚胺基辅助配体的金属铱(III)配合物的 合成、表征及发光性质

李文瑛a 毛礼胜*,b 吕 龙*,b 贺红武a

  

  1. (a华中师范大学化学学院 武汉 430079)
    (b中国科学院上海有机化学研究所有机氟化学重点实验室 上海 200032)

  • 投稿日期:2008-01-14 修回日期:2008-04-17 发布日期:2008-10-14
  • 通讯作者: 吕 龙

Synthesis, Characterization and Luminescent Property of New Iridium(III) Complexes Bearing Pyrrylimine Ligands

LI ,Wen-Ying a MAO, Li-Sheng *,b LÜ, Long * ,b HE, Hong-Wu a   

  1. (a College of Chemistry, Central China Normal University, Wuhan 430079)
    (b Key Laboratory of Organofluorine Chemistry, Shanghai Institute of Organic Chemistry,
    Chinese Academy of Sciences, Shanghai 200032)
  • Received:2008-01-14 Revised:2008-04-17 Published:2008-10-14
  • Contact: LÜ, Long

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被引次数

7

合成了一系列含有吡咯亚胺基为辅助配体的2-苯基吡啶铱配合物[(ppy)2Ir(N^N)] (ppy＝2-苯基吡啶), 通过1H NMR, MS, HRMS和元素分析对配合物结构进行了表征, 并研究了合成配合物的反应条件、紫外吸收光谱、光致发光光谱及铱配合物荧光量子产率. 结果表明, 在无水乙酸钠、二氯甲烷溶液中, 室温反应12 h可获得较高的产率. 通过改变吡咯亚胺类配体中的取代基, 该类配合物在507～606 nm之间具有不同的发光波长, 实现了从绿光到红光的转变. 所有的铱配合物在二氯甲烷溶液(空气中)表现出较高的量子效率(0.25～0.95).

关键词: 磷光材料, 铱配合物, 吡咯亚胺配体, 合成, 发光性质

A series of new iridium complexes bearing pyrrylimine ligands, [(ppy)2Ir(N^N)] (ppy＝2-phenylpyridine), were synthesized and characterized by 1H NMR, mass spectroscopy and elemental analysis. The reaction conditions of synthesis, UV-Vis absorption, photoluminescence and quantum efficiencies of the complexes were investigated. The results showed that the iridium complexes were obtained in good yields at room temperature using NaOAc as a base in dichloromethane. By changing the substituents in the pyrrylimine ligands, these complexes would have a range of luminescence wavelength from 507 to 606 nm and realize tuning from green to red. All of the iridium complexes in solution show high quantum efficiencies (0.25～0.95).

Key words: phosphorescent material, iridium complex, pyrrylimine, synthesis, luminescent property