物理化学学报 >> 1999, Vol. 15 >> Issue (03): 259 -264 .doi: 10.3866/PKU.WHXB19990312

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草酰氯和2,3-丁二酮的紫外光解

李强, 李红志, 孔繁敖   

  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
  • 收稿日期:1998-03-25 修回日期:1998-05-08 发布日期:1999-03-15
  • 通讯作者: 孔繁敖

UV Photolysis of Oxalyl Chloride and 2,3-butanedione Studied by Time-resolved FTIR

Li Qiang, Li Hong-Zhi, Kong Fan-Ao   

  1. The State Key Laboratory of Molecular Reaction Dynamics,Insititute of Chemistry,Chinese Academy of Science,Beijing 100080
  • Received:1998-03-25 Revised:1998-05-08 Published:1999-03-15
  • Contact: Kong Fan-Ao

关键词: 草酰氯, 2,3=丁二酮, 紫外光解, 红外发射光谱

Abstract:

The photodissociation of oxalyl chloride and 2,3 butanedione at 193nm and 248nm have been studied by Time resolved FTIR emission spectroscopy. The IR fluorescence emission was observed and the rotational and vibrational populations of the CO product were obtained. It is suggested that the photolysis mechanism is two RCO radicals formed via a fission of C-C bond, followed by a decomposition of the RCO intermediate to vibrationally excited CO( v ) and R radical.

Key words: Oxalyl chlorde, 2,3-butanedione, UV photolysis, IR emission spectrum