Steric effect in the scattering of hexapole‐oriented beams of symmetric‐top molecules by graphite(0001)
Steric effect in the scattering of hexapole‐oriented beams of symmetric‐top molecules by graphite(0001)
复制标题
石墨(0001)对对称顶分子六极取向光束散射的空间效应
DOI：
10.1063/1.459414
复制
发表时间：
1990
影响因子：
4.4
通讯作者：
R. Bernstein
中科院分区：
文献类型：
--
作者：
T. J. Curtiss;R. S. Mackay;R. Bernstein
本文报道了六种对称陀螺分子（CH_3Cl，CH_3F，CH_3Cl_3，CHF_3，t-BuCl，CH_3CN）和CH_3OH在石墨晶体（0001）面上的六极聚焦定向分子束散射的取向依赖性。实验角分布数据由双组分模型很好地表示，该模型由“捕获/解吸”和“直接"散射贡献组成。空间效应，定义为差（“头”与“尾”）除以散射信号的平均值，已被测量为散射角和分子取向度的函数。在不同的分子中，散射（和捕获）的空间效应的方向和大小有相当大的差异。然而，在所有情况下，空间效应的大小基本上是取向度的线性函数。有限的数据入射能量依赖的角分布和立体效应也提出了…
The orientational dependence of the scattering of hexapole‐focused, oriented molecule beams of six symmetric‐top molecules (CH3Cl, CH3F, CHCl3, CHF3, t‐BuCl, CH3CN) and CH3OH from the (0001) surface of a graphite crystal is reported. Experimental angular distribution data are well represented by a two‐component model, consisting of a ‘‘trapped/desorbed’’ and a ‘‘direct’’ scattered contribution. The steric effect, defined as the difference (‘‘heads’’ vs ‘‘tails’’) divided by the average of the scattered signals, has been measured as a function of the scattering angle and the degree of orientation of the molecules. There is considerable diversity among the different molecules with respect to the direction and magnitude of the steric effect of the scattering (and trapping). In all cases, however, the magnitude of the steric effect is essentially a linear function of the degree of orientation. Limited data on the incident energy dependence of the angular distributions and the steric effect are also presented....
激光研究。13-1。
DOI：
--
发表时间：
--
期刊：
影响因子：
--
作者：
通讯作者：
--
利用六极电场选择 CH3CN 的旋转状态
DOI：
--
发表时间：
2006
期刊：
JAEA Research 2005-002
影响因子：
--
作者：
Michihiro;Haxhinokuchi
通讯作者：
Haxhinokuchi