Steric Effects in the Scattering of Oriented CH3Cl Molecular Beam from a Graphite Surface: Weak Interaction of Physisorption

被引:8
|
作者
Fukuyama, Tetsuya [1 ]
Okada, Michio [1 ,2 ,3 ]
Kasai, Toshio [1 ]
机构
[1] Osaka Univ, Grad Sch Sci, Dept Chem, Osaka 5600043, Japan
[2] Osaka Univ, Renovat Ctr Instruments Sci Educ & Technol, Osaka 5600043, Japan
[3] Japan Sci & Technol Agcy, PRESTO, Kawaguchi, Saitama 3320012, Japan
来源
JOURNAL OF PHYSICAL CHEMISTRY A | 2009年 / 113卷 / 52期
关键词
TERT-BUTYL CHLORIDE; TRANSLATIONAL ENERGY; ORIENTATION DEPENDENCE; ROTATIONAL ALIGNMENT; PT(100) SURFACE; POLAR-MOLECULES; NO SCATTERING; CO; ADSORPTION; STATE;
D O I
10.1021/jp904893z
中图分类号
O64 [物理化学(理论化学)、化学物理学];
学科分类号
070304 ; 081704 ;
摘要
We report results of a study on steric effects appearing in the scattering of an oriented CH3Cl molecular beam from highly oriented pyrolytic graphite (HOPG) surface at 300 K. Data presented here show that the scattered CH3Cl beam intensity measured at a fixed scattering angle clearly depends on the initial molecular orientation toward the HOPG Surface. The scattered CH3Cl beam intensity for the CH3-end collision is larger than that for the Cl-end collision, suggesting that strong anisotropy of the interaction potential induces the molecular-orientation-dependent energy dissipation during transient trapping into the physisorption well.
引用
收藏
页码:14749 / 14754
页数:6
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