激光光解自由基的TR-ESR研究

摘要/Abstract

摘要：

时间分辨电子自旋共振（TR-ESR）技术是探测和鉴定光化学反应过程中顺磁性中间体的强有力工具，利用TR-ESR技术观察到的化学诱导动态电子极化 (CIDEP) 可以为我们提供丰富的光化学反应机理、反应动力学等信息. 该文较为详细地介绍了CIDEP的4种机理和自行研制的一种零差拍平衡混频的时间分辨ESR波谱仪，总结了TR-ESR技术在光解自由基反应方面的应用.

关键词: 时间分辨电子自旋共振（TR-ESR）, 化学诱导动态电子极化(CIDEP), 光解自由基

Abstract:

Time-resolved electron spin resonance (TR-ESR) is a powerful technique which can be used to detect and identify short-lived intermediates in photo-induced reaction. The chemically induced dynamic electron polarization (CIDEP) signal measured by the TR-ESR technique can provide rich information on the mechanism and dynamics of photochemical reaction. In this review, the four CIDEP mechanisms and the home-made TR-ESR with balance reflection bridge-type circuit and zero difference beat balance mixing frequency model are introduced. The applications of TR-ESR in investigation on laser photolyzed radicals are summarized.

Key words: TR-ESR, CIDEP, photolyzed radicals

中图分类号:

O581
O644.14

季学韩, 许新胜, 崔执凤. 激光光解自由基的TR-ESR研究[J]. 波谱学杂志, 2011, 28(4): 540-550.

JI Xue-Han, XU Xin-Sheng, CUI Zhi-Feng. Investigating Laser Photolyzed Radicals Using TR-ESR[J]. Chinese Journal of Magnetic Resonance, 2011, 28(4): 540-550.

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