高等学校化学学报

高等学校化学学报 ›› 2003, Vol. 24 ›› Issue (8): 1447.

• 论文 • 上一篇    下一篇

复合物C6H5CH3…Ar分子间的外部振动频率

胡义华1, 吴怀选1, 陈丽1, 刘美希1, 王小涓1, 杨世和2   

  1. 1. 广东工业大学应用物理系, 广州 510090;
    2. 香港科技大学化学系, 香港九龙清水湾
  • 收稿日期:2002-10-10 出版日期:2003-08-24 发布日期:2003-08-24
  • 通讯作者: 胡义华(1958年出生),男,博士,教授.从事激光光谱、激光化学和分子反应动力学研究.E-mail:bb138@163.net E-mail:bb138@163.net
  • 基金资助:

    国家自然科学基金(批准号:20171014)资助

Intermolecular Vibrational Frequencies of Complex C6H5CH3...Ar

HU Yi-Hua1, WU Huai-Xuan1, CHEN Li1, LIU Mei-Xi1, WANG Xiao-Juan1, YANG Shi-He2   

  1. 1. Department of Applied Physics, Guangdong University of Technology, Guangzhou, 510090, China;
    2. Department of Chemistry, Hong Kong University of Science & Technology, Clear Water Bay, Kowloon, HongKong, China
  • Received:2002-10-10 Online:2003-08-24 Published:2003-08-24

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摘要： 利用双光子共振电离光谱和飞行时间质谱技术在超声分子束中观察到C6H5CH3…Ar的振动光谱.借助同位素光谱效应、内转动能级和分子间振动能级的理论计算,合理地归属了涉及CH3转动和Ar原子振动的光谱,并由此获得复合物分子间各种模式的振动频率.

关键词: 共振光电离光谱, 内转动光谱, 范德华振动

Abstract: Acombined experimental and theoretical studies of resonant ionization spectra for van der Waals complexes C6H5CH3...Ar and C6D5CD3...Ar are reported.By using resonant ionization spectrometry, together with time-of-flight mass spectrometry, in supersonic molecular beam, the internal rotation for CH3and intermolecular vibration for atom Ar in the complexes are exhibited, all observed bands are rationally assigned by isotope effect and calculated at the internal rotational levels and external vibrational levels, and three modes frequencies of van der waals vibrations for complex C6H5CH3...Ar are obtained.

Key words: Resonant photo-ionization spectra, Internal rotational spectra, van der Waals vibration

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