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化学学报
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化学学报 ›› 2008, Vol. 66 ›› Issue (19): 2146-2150. 上一篇    下一篇

研究论文

含三芳胺基的吡啶甲酸衍生物及其环金属铱配合物的合成与性能

黄丰良 胡峥勇 文忠林 刘 煜 朱美香 朱卫国*

  

  1. (湘潭大学化学学院 环境友好化学与应用省部共建教育部重点实验室 湘潭 411105)

  • 投稿日期:2007-10-22 修回日期:2008-02-01 发布日期:2008-10-14
  • 通讯作者: 朱卫国

Synthesis and Properties of a Triarylamine-based Picolinic Acid and Its Iridium Complex

HUANG, Feng-Liang HU, Zheng-Yong WEN, Zhong-Lin LIU, Yu
ZHU, Mei-Xiang ZHU, Wei-Guo*
  

  1. (College of Chemistry, Key Laboratory of Environment-friendly Chemistry and Application of Ministry of Education,
    Xiangtan University, Xiangtan 411105)
  • Received:2007-10-22 Revised:2008-02-01 Published:2008-10-14
  • Contact: ZHU, Wei-Guo

PDF

1347

被引次数

13

通过Ullmann反应和Negishi偶联反应, 合成了一种含三芳胺功能基的吡啶-2-甲酸衍生物; 并以此为辅助配体、1-苯基异喹啉为环金属配体, 设计合成了一种新型环金属铱配合物. 该配合物的二氯甲烷溶液, 在391～461 nm范围呈现了强烈的金属-配体电荷转移(MLCT)电子跃迁吸收带; 其最大发光波长为609 nm. 与传统的二(1-苯基异喹啉)(吡啶-2-甲酸)合铱配合物相比, 设计的环金属铱配合物具有增强的MLCT电子跃迁吸收和低的氧化电位, 是一种有发展潜力的红色磷光材料.

关键词: 三芳胺, 吡啶甲酸, 环金属铱配合物, 合成, 光致发光

A triarylamine-based picolinic acid was synthesized through the Ullmann reaction and Negishi coupling reaction. Using this class of picolinic acid derivative as an auxiliary ligand and 1-phenylisoquinoline as a cyclometalated ligand, a cyclometalated iridium complex was also prepared. The intense absorption band in 391～461 nm from the metal-ligand charge transfer (MLCT) transition and photoluminescence peak at 609 nm were exhibited for this iridium complex in dichlomethane. Compared to bis(1-phenylisoquinolyl-N,C2’)(picolinato) iridium(III), the iridium complex containing the triarylamine-based picolinic acid displays increased MLCT transition and low oxidation potential and is expected to be a promising red phosphorescent material.

Key words: triarylamine, picolinic acid, cyclometalated iridium complex, synthesis, photoluminescence