物理化学学报 >> 2005, Vol. 21 >> Issue (04): 435-438.doi: 10.3866/PKU.WHXB20050418

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复合物Mg+-NCSCH3光诱导反应

胡义华; 张兴初; 武华; 王小涓; 陈丽; 刘海川; 杨世和   

  1. 广东工业大学应用物理学院, 继续教育学院, 广州 510090; 香港科技大学化学系, 香港, 九龙
  • 收稿日期:2004-08-20 修回日期:2004-11-04 发布日期:2005-04-15
  • 通讯作者: 胡义华 E-mail:yihuahu@tom.com

Photo-induced Reaction of the Complex Mg+-NCSCH3

HU Yi-Hua; ZHANG Xing-Chu; WU Hua; WANG Xiao-Juan; CHEN Li; LIU Hai-Chuan; YANG Shi-He   

  1. School of Applied Physics; 1School of Continual Education, Guangdong University of Technology, Guangzhou 510090; Department of Chemistry, Hong Kong University of Science & Technology, Kowloon, Hong Kong
  • Received:2004-08-20 Revised:2004-11-04 Published:2005-04-15
  • Contact: HU Yi-Hua E-mail:yihuahu@tom.com

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摘要： 观察了复合物Mg+-NCSCH3在230~440 nm范围的光解离光谱. 在此波段内的复合物光诱导产物的质谱显示, 存在着非反应猝灭产物Mg+和反应产物Mg+NC、Mg+NCS. 反应产物来源于S－C化学键的断裂. 复合物的光解离光谱由两个对应于原子Mg+(32P←32S)跃迁的宽峰构成. 由量化计算中的CIS方法所获得的吸收谱理论值与实验值吻合较好.

关键词: 金属离子-分子复合物, 激光光解, 飞行时间质谱

Abstract: Photodissociation spectroscopy of the complex Mg+-NCSCH3 in the spectral region of 230~440 nm was observed. Mass spectrometry of the products for photo-induced reaction in the complex Mg+-NCSCH3 exhibits the product Mg+ from nonreaction quenching and reactive products Mg+NC, Mg+NCS throughout the whole wavelength range. The reactive products originate from the breaking of S－C chemical bonds. The Photodissociation spectrum consists of two broad peaks corresponding to the atomic transition of Mg+(32P←32S). The absorption spectrum by using CIS method of quantum chemical calculation agrees with the experimental spectrum.

Key words: Metal cation-molecule complex, Laser photodissociation, Time-flight mass spectrum