波谱学杂志 ›› 2004, Vol. 21 ›› Issue (1): 17-23.

• 研究论文 • 上一篇    下一篇

连续波电子自旋共振的二维相关谱

李勇1*, 邵萌2, 王琪1,侯碧辉2   

  1. 1.清华大学化学系,北京 100084; 2.北京工业大学应用数理学院,北京  100022
  • 收稿日期:2003-06-16 修回日期:2003-07-22 出版日期:2004-03-05 发布日期:2004-03-05
  • 基金资助:

    “973”资助项目(2002CB211803)

TWO DIMENSIONAL CONTINUOUS-WAVE ELECTRON SPIN RESONANCE SPECTROSCOPY

 LI Yong1*, SHAO Meng2, WANG Qi1, HOU Bi-Hui2   

  1. 1.Department of Chemistry, Tsinghua University, Beijing 100084, China;
    2.College of Applied Sciences, Beijing University of Technology, Beijing 100022, China
  • Received:2003-06-16 Revised:2003-07-22 Online:2004-03-05 Published:2004-03-05
  • Supported by:

    “973”资助项目(2002CB211803)

摘要:

在数学相关分析的基础上,建立了获得连续波电子自旋共振(continuous-wave electron spin resonance, CW-ESR)的二维相关谱的方法. 对光照产生的2-甲基-2-亚硝基-丙烷(2-methyl-2-nitrosopropane, MNP)的自捕捉自由基的一系列CW-ESR谱进行相关分析处理,首次得到了同步和异步的二维电子自旋共振(2D ESR)相关谱. 这种利用数学相关分析方法所得到的2D ESR相关谱将为扩大CWESR的应用领域及获取更多的有用信息开拓新的途径.

关键词: 数学相关分析, 二维相关谱, 2-甲基-2-亚硝基-丙烷

Abstract:

In this paper, the basic theory about two-dimensional electron spin resonance (2D ESR) spectroscopy obtained from continuous-wave ESR (CW-ESR) spectra is described. Synchronous and asynchronous 2D ESR correlation spectra defined by two independent magnetic field variable axes are generated by a correlation analysis of dynamic fluctuations of ESR signals induced by an external perturbation. An example of 2D ESR spectra is presented for a radical produced by self-trapping of 2-methyl-2-nitrosopropane (MNP) under UV irradiation. Potential applications of this new 2D ESR technique are discussed.

Key words: ESR, two-dimensional correlation spectrum, correlation analysis, MNP

中图分类号: