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

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