高等学校化学学报

高等学校化学学报 ›› 1988, Vol. 9 ›› Issue (2): 163.

• 论文 • 上一篇    下一篇

强红外激光场解离含氧有机物中C—O—C键机理的研究

郭广生, 顾月姝, 郭用猷, 印永嘉   

  1. 山东大学化学系
  • 收稿日期:1986-10-06 出版日期:1988-02-24 发布日期:1988-02-24

The Breakage Mechanism Study of Containing Oxygen Organic Compound by IR Laser

Guo Guangsheng, Gu Yuezhu, Guo Ypngyou, Yin Yongjia   

  1. Chemistry Department, Shandong University, Ji'nan
  • Received:1986-10-06 Online:1988-02-24 Published:1988-02-24

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摘要： 本文用TEACO2激光器研究了1,2-环氧丙烷(PO)、四氢呋喃(THF)和烯丙基醚(DAE)等含C—C—C键有机物的多光子解离过程;给出了PO和THF的解离率与激光能量的关系;较详细地探讨了C—O—C键的断裂机理。实验发现,这些分子解离时的初始步骤都是断裂较弱的C—O键,解离阈值约为0.8J/cm2。

Abstract: Using TEA CO2 laser as excitation source, we have studied the processes of multiphoton dissociation of propylene oxide (PO), tetrahydrofuran (THF)and diallyl ether (DAE). It was obtained that the dependence of dissociation yield on laser energy-density. We propose a mechanism involving breakage of the C-Obond in PO, THFand DAE. We found that the initiative step of dissociation in these moleculae is breakage of the weaker C-Obond. The threshold energy is about 0.8J/cm2.

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