物理化学学报 >> 1998, Vol. 14 >> Issue (01): 21-26.doi: 10.3866/PKU.WHXB19980105

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1,4-二氧六环的光电离解离

邹鹏, 吴国盛, 陈文武, 杨达林, 盛六四, 武国华, 叶为全, 张允武   

  1. 中国科学院化学研究所，分子反应动力学国家重点实验室，北京 100080|中国科学技术大学国家同步辐射实验室，合肥 230026
  • 收稿日期:1997-04-09 修回日期:1997-06-01 发布日期:1998-01-15
  • 通讯作者:

A Study of 1,4-dioxane Photoionization and Dissociation

Zou Peng, Wu Guo-Sheng, Chen Wen-Wu, Yang Da-Lin, Sheng Liu-Si, Wu Guo-Hua, Ye Wei-Quan, Zhang Yun-Wu   

  1. The State Key Laboratory of Molecular Reaction Dynamics,Institute of Chemistry,Chinese Academy of Sciences,Beijing 100080|National Laboratroy of Synchrotron radiation,University of Science and Technology of China,Hefei 230026
  • Received:1997-04-09 Revised:1997-06-01 Published:1998-01-15
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摘要：

采用同步辐射光源、飞行时间质谱和分子束方法研究了1,4-二氧六环的光电离解离过程．由光电离效率曲线得出离子产物的出现势，计算了产物的生成焓．若重分析了m／e=28,29.41等离子碎片的解离通道以及离子碎片的可能结构，提出1,4-二氧六环在光电离解离过程中发生了重排反应.

关键词: 1,4-二氧六环, 同步辐射光源, 光电离解离, 重排反应

Abstract:

The photoionization-dissociation pattern of 1,4-dioxane has been studied by molecular beam. VUV from Synchrotron Radiation and TOF mass spectrometry. The possible fragmentation channel and structures of ion fragments(m/e 41 28 29 58 57)have been discussed on the basis of PIE curves, and a rearrangement reaction mechanism for the photoionization-dissociation of 1,4-dioxane has been proposed.

Key words: 1,4-dioxne, Synchrotron radiation, Photoionization and dissociation, Rearrangement reaction