波谱学杂志 ›› 1997, Vol. 14 ›› Issue (4): 325-330.

• 研究论文 • 上一篇    下一篇

配合物PdCl2[(PPh2)2CHCl]的合成、结构及反应机理

韦凤萍1, 黄永仁1, 冯良波2, 吕士杰2, 汪汉卿2, 黄梁仁3   

  1. 1 华东师范大学分析测试中心, 上海 200062;
    2 中国科学院兰州化学物理研究所, 兰州 730000;
    3 中国科学院福建物质结构研究所, 福州 350002
  • 收稿日期:1997-01-27 修回日期:1997-03-24 出版日期:1997-08-05 发布日期:2018-01-22
  • 作者简介:韦凤萍,女,33岁,硕士,助研

COMPLEX Pd[(PPh2)2CHCl]: SYNTHESIS,STRUCTURE AND ITS REACTION MECHANISM

Wei Fengping1, Huang Yongren1, Feng Liangbo2, Lu Shijie2, Wang Hanqing2, Huang Liangren3   

  1. 1 Analytical Center, East China Normal University, Shanghai 200062;
    2 Lanzhou Institute of Chemical Physics, the Chinese Academy of Sciences, Lanzhou 730000;
    3 Fujian Institute of Research on the Structure of Matter, the Chinese Academy of Sciences, Fuzhou 350002
  • Received:1997-01-27 Revised:1997-03-24 Online:1997-08-05 Published:2018-01-22

摘要: 合成了新配合物PdCl2[(PPh2)2CHCl],用核磁、红外光谱、元素分析等表征了其结构,X-rax衍射确定了单晶结构.应用电子顺磁共振-自旋捕获(EPR-ST)对技术研究了其反应的机理.捕获到PPh2及含碳自由基中间体,提出了反应机理.

关键词: EPR-ST, Pd配合物, 自由基机理

Abstract: Complex PdCl2[(PPh2)2CHCl] has been prepared by treatment of Pd(OAc)2 with dppm in solvent CH2Cl2. IR,1H NMR, 31P NMR, elemental analysis, EDS data are given. The molecular structure of PdCl2[(PPh2)CHCl] has been determined by single crystal X-ray diffeaction. The reaction mechanism is tentatively proposed and discussed. Radicals.PPh2 and other radicals were trapped by PBN. This reaction was proved to be a free radical reaction by EPR-ST method. The solvent CH2Cl2 participated in the reaction.

Key words: EPR-ST, Pd complex, Free radical mechanism