物理化学学报 >> 1988, Vol. 4 >> Issue (03): 256-261.doi: 10.3866/PKU.WHXB19880307

研究论文 上一篇    下一篇

碘乙烷激光裂解反应通道及产物的能量分布

曹建如; 温晔; 张建明; 顾好刚; 钟宪; 方万全; 段素香; 武小军; 朱起鹤   

  1. 中国科学院化学研究所 北京
  • 收稿日期:1986-11-08 修回日期:1987-04-20 发布日期:1988-06-15
  • 通讯作者: 曹建如

THE REACTION CHANNELS AND FRAGMENT ENERGY DISTRIBUTIONS OF THE LASER PHOTOFRAGMENTATION OF C2H5I

Cao Jianru*; Wen Ye; Zhang Jianming; Qu Haogang; Zhong Xian; Fang Wanquan; Wu Xiaojun; Zhu Qihe   

  1. Institute of Chemistry; Academia Sinica; Beijing
  • Received:1986-11-08 Revised:1987-04-20 Published:1988-06-15
  • Contact: Cao Jianru

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摘要： 用分子束和飞行时间技术测量了248 nm激光光解过程C_2H_5I→C_2H_5+I°(~2p_(1/2))和C_2H_5I→C_2H_5+I(~2p_(3/2))裂解碎片的平动能和内能分布。测得通道比I~*/I为2.37。根据实验结果, 对光解过程中电子激发态特性, 产生I(~2p_(3/2))通道的机理以及乙基自由基的振动激发作了讨论。

Abstract: The translational and internal energy distributions of the photofragments for the processes C_2H_5I→C_2H_5+I~*(~2p_(1/2)) and C_2H_5I→C_2H_5+I(~2p_(3/2))have been measured by using a rotatable molecular beam and time of flight method. The ratio I~*/I determined is 2.37. The characteristics of the electronic excited state, the origin of the I(~2p_(3/2)) channel and the vibrational excitations in the ethyl radicals are discussed.