连续波电子自旋共振的二维相关谱

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

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.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 Yong^1*, SHAO Meng², WANG Qi¹, HOU Bi-Hui²

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/Abstract

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:

O482.53

李勇, 邵萌, 王琪, 侯碧辉. 连续波电子自旋共振的二维相关谱[J]. 波谱学杂志, 2004, 21(1): 17-23.

LI Yong, SHAO Meng, WANG Qi, HOU Bi-Hui. TWO DIMENSIONAL CONTINUOUS-WAVE ELECTRON SPIN RESONANCE SPECTROSCOPY[J]. Chinese Journal of Magnetic Resonance, 2004, 21(1): 17-23.

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