Acta Chimica Sinica ›› 2008, Vol. 66 ›› Issue (19): 2146-2150. Previous Articles     Next Articles

Original Articles


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

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