应用化学

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2-苯基异喹啉及其衍生物铂(II)配合物的合成和光谱性质

李慧1,2,袁伟1,2,王兴东1,陈博1,2,程延祥1*,谢志元1,王利祥1   

  1. (1.中国科学院长春应用化学研究所,高分子物理与化学国家重点实验室 长春 130022;
    2.中国科学院研究生院 北京 100049)
  • 收稿日期:2011-11-02 修回日期:2012-01-16 出版日期:2012-10-10 发布日期:2012-10-10
  • 通讯作者: 程延祥,研究员; Tel:0431185262106; Fax:0431185684937; E1mail:yanxiang@ciac.jl.cn; 研究方向:高分子及金属有机化学
  • 基金资助:
    国家自然科学基金资助项目(51073152和20874098)

Synthesis and Spectroscopic Properties of Pt(II) Complexes Based on 2-Phenylisoquinoline and Its Derivatives

LI Hui1,2, YUAN Wei1,2, WANG Xingdong1, CHEN Bo1,2, CHENG Yanxiang1*, XIE Zhiyuan1, WANG Lixiang1   

  1. (1.State Key Laboratory of Polymer Physics and Chemistry,Changchun Institute of Applied Chemistry,Chinese Academy of Sciences,Changchun 130022,China;
    2.Graduate School of Chinese Academy of Sciences,Beijing 100049,China)
  • Received:2011-11-02 Revised:2012-01-16 Published:2012-10-10 Online:2012-10-10
  • Contact: CHENG Yan-Xiang

摘要: 合成了7种2-苯基异喹啉及其衍生物Pt(Ⅱ)配合物。 采用1H/13C NMR、TGA、X射线单晶衍射、CV、UV-Vis和PL等测试方法对配合物的结构和性能进行了表征。 结果表明,这些Pt(Ⅱ)配合物均为平面四方配位构型。 室温下,所有配合物在二氯甲烷(DCM)溶液中均发射红光,其中配合物(CzPPiQ)Pt(acac)和(CzPPiQ)Pt(dpm)为标准的红光发射,其发射源于金属到配体的电荷转移(MLCT)(407、444和463 nm)和配体中心(LC)(353、363和376 nm)的混合激发态。 配合物在DCM溶液中的光量子产率为0.02~0.06,寿命为1.78~3.33 μs。 大位阻外围取代基的引入有效抑制了分子间相互作用。

关键词: 铂(II)配合物, 苯基异喹啉, 红光, 平面构型, 分子间相互作用

Abstract: Seven platinum(Ⅱ) complexes containing 2-phenylisoquinoline or its derivatives were prepared and the structures and properties of complexes were characterized by 1H/13C NMR, TGA, X-ray single crystal diffraction, CV, UV-Vis and PL etc. The results show that these platinum(Ⅱ) complexes keep planar coordination geometry around Pt atom, and exhibit red phosphorescence from the metal-to-ligand charge-transfer(MLCT)(407, 444, 463 nm) and ligand center(LC)(353, 363, 376 nm) of mixedstate with quantum efficiency of 0.02~0.06 and lifetimes of 1.78~3.33 μs at room temperature in the DCM solution. Steric hindrance of the peripheral substituent effectively inhibits the intermolecular interaction.

Key words: Pt(II) complex, phenylisoquinoline, red emitting, square-planar configuration, intermolecular interaction

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