K(6S)+H<sub>2</sub>→KH+H转动分辨反应截面的测量(英文)

王倩; 吉建强; 沈异凡; 戴康

您当前的位置：

首页 >

文章列表页 >

K(6S)+H₂→KH+H转动分辨反应截面的测量(英文)

研究精粹 | 更新时间：2026-01-21

- K(6S)+H₂→KH+H转动分辨反应截面的测量(英文)
- K(6S)+H₂→KH+H转动分辨反应截面的测量(英文)
- 新疆大学学报（自然科学版中英文） 2012年29卷第4期页码：379-383
- 作者机构：
  
  新疆大学物理科学与技术学院
- 作者简介：
- 基金信息：
  
  Granted by the National Natural Science Foundation of China(10664003)
- DOI：
  中图分类号： O562
- 纸质出版：2012
- 稿件说明：
移动端阅览
[1]王倩,吉建强,沈异凡,等.K(6S)+H_2→KH+H转动分辨反应截面的测量(英文)[J].新疆大学学报(自然科学版),2012,29(04):379-383.

王倩, 吉建强, 沈异凡, et al. K(6S)+H₂→KH+H转动分辨反应截面的测量(英文)[J]. Journal of Xinjiang University (Natural Science Edition in Chinese and English), 2012, 29(4): 379-383.
[1]王倩,吉建强,沈异凡,等.K(6S)+H_2→KH+H转动分辨反应截面的测量(英文)[J].新疆大学学报(自然科学版),2012,29(04):379-383. DOI：

王倩, 吉建强, 沈异凡, et al. K(6S)+H₂→KH+H转动分辨反应截面的测量(英文)[J]. Journal of Xinjiang University (Natural Science Edition in Chinese and English), 2012, 29(4): 379-383. DOI：

摘要

利用泵浦-检测技术和光学吸收技术

对K(6S)与H2反应生成的初生态产物KH(X1Σ+

v=0

1)的转动态分布和反应截面作了测量。脉冲激光双光子激发K原子至K(6S)态

通过泵浦-探测技术确定了KH(X1Σ+

v=0

1)初生态的转动分布

转动分布接近样品池温时的统计分布。通过测量泵浦激光的能量损失确定K(6S)态原子密度

测量检测激光的吸收系数得到反应产物KH分子的密度

由速率方程分析可以得到转动分辨的反应截面

总的反应截面为所有转动分辨的反应截面之和

得到的反应截面分别为(1.3±0.5)×10-16cm2(对v=0)和(0.05±0.02)×10-16cm2(对v=1).

Abstract

Using pump-probe method and optical absorption technique

we have measured the nascent quantum state distributions of the KH product and the cross sections for reaction of K(6S) with H 2.The K(6S) state was excited with a pulsed laser by two-photon absorption.The nascent rotational distributions of KH(v=0

1) were determined from laserinduced fluorescence spectrum.The rotational population profiles were roughly consistent with a statistical distribution at the cell temperature.The densities of K(6S) atoms were evaluated directly from the pump laser energy loss which was absorbed by K atoms.The densities of KH molecules were measured by monitoring the absorption of a counterpropagating probe laser beam

tuned to X 1 Σ + A 1 Σ + transitions.Using a rate equation model

we obtained rotationally resolved reaction cross sections.The total cross sections obtained by summing the individual rotationally resolved cross sections are σ(v=0)=(1.3±0.5)×10-16cm2 and σ(v=1)=(0.05±0.02)×10-16cm2

respectively.

关键词

Keywords

references

Bililign S,Kleiber P D.Nascent rotational quantum state distribution of NaH(NaD)from the reaction of Na(42P)with H 2,D 2,and HD[J].J Chem Phys,1992,96(1):215-217.

Liu D K,Lin K C.State-specific reaction and product energy disposal of electronically excited potassium with hydrogen molecule[J].J Chem Phys,1997,107(11):4244-4252.

Fan L H,Chen J J,Lin Y Y,et al.Reaction Rb(5 2 D,7S)of with H 2[J].J Phys Chem A,1999,103:1300-1305.

Cavero V,LHermite J M.Rahmat G and Vetter R.Cs(6D 3/2)+H 2→CsH+H reaction.IV.Rotationally resolved total cross sections[J].J Chem Phys,1999,110(11):3428-3436.

Bililign S,Hattablay B C,Geum N,et al.Energy transfer in Li(3P)-H 2 collisions[J].J Phys Chem A,2000,104:9454-9458.

Wong T H,Kleiber P D,Yang K H.Chemical dynamics of the reaction K(5p 2 P)+H 2→KH(v=0,J)+H:Electronic orbital alignment effects[J].J Chem Phys,1999,110(14):6743-6748.

Prudente F V,Marques J M C,Maniero A M.Time-dependent wave pachet calculation of the LiH+H reactive scattering on a new potential energy surface[J].Chem Phys Lett,2009,474:18-22.

Wernli M,Caruso D,Bodo E,et al.Computing three-dimensional electronic energy manifold for the Li(2 P)+H 2 LiH+H chemical reaction[J].J Phys Chem A,2009,113:1121-1128.

Lin K C,Vetter R.Alkali-hydrogen reaction[J].Int Rev Phys Chem,2002,21(3):357-383.

Chang Y P,Hsiao M K,Liu D L,et al.Rotational and vibrational state distributions of NaH in the reactions of Na(4 2 S,3 2 D,and6 2 S)with H 2:Insertion harpoon-type mechanisms[J].J Chem Phys,2008,128:234309-1-6.

Stwalley W C,Zemke W T,Yang S C.Spectroscopy and Structure of the Alkali Hydride Diatomic Molecules and Their ions[J].J Phys Chem Ref Data,1991,20(1),153-186.

浏览量

下载量

CSCD

文章被引用时，请邮件提醒。

提交

工具集

关联资源

暂无数据

K(6S)+H2→KH+H转动分辨反应截面的测量(英文)

K(6S)+H2→KH+H转动分辨反应截面的测量(英文)

DOI：

摘要

Abstract

关键词

Keywords

references

K(6S)+H₂→KH+H转动分辨反应截面的测量(英文)

K(6S)+H₂→KH+H转动分辨反应截面的测量(英文)