Differential Cross Sections for State-to-State Collisions of NO(v=10) in Near-Copropagating Beams

被引：20

作者：

Amarasinghe, Chandika ^{[1
]}

Li, Hongwei ^{[1
]}

Perera, Chatura A. ^{[1
]}

Besemer, Matthieu ^{[2
]}

van der Avoird, Ad ^{[2
]}

Groenenboom, Gerrit C. ^{[2
]}

Xie, Chengjian ^{[3
]}

Guo, Hua ^{[3
]}

Suits, Arthur G. ^{[1
]}

机构：

[1] Univ Missouri, Dept Chem, Columbia, MO 65211 USA

[2] Radboud Univ Nijmegen, Inst Mol & Mat, Heyendaalseweg 135, NL-6525 AJ Nijmegen, Netherlands

[3] Univ New Mexico, Dept Chem & Chem Biol, Albuquerque, NM 87131 USA

来源：

JOURNAL OF PHYSICAL CHEMISTRY LETTERS | 2019年 / 10卷 / 10期

关键词：

INELASTIC-SCATTERING; LOW-TEMPERATURES; MOLECULAR-BEAMS; ENERGY-TRANSFER; NO; QUANTUM; RESONANCES; HE; SURFACES;

D O I：

10.1021/acs.jpclett.9b00847

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：

State-to-state differential cross sections for rotationally inelastic collisions of vibrationally excited NO with Ar have been measured in a near-copropagating crossed beam experiment at collision energies of 530 and 30 cm(-1). Stimulated emission pumping (SEP) to prepare NO in specific rovibrational levels is coupled with direct-current slice velocity map imaging to obtain a direct measurement of the differential cross sections. The use of nearly copropagating beams to achieve low NO-Ar collision energies and broad collision energy tuning capability are also demonstrated. The experimental differential cross sections (DCSs) for NO in v = 10 in specific rotational and parity states are compared with the corresponding DCSs predicted for NO in v = 0 obtained from quantum mechanical close coupling calculations to highlight the differences between the NO(v = 10)-Ar and NO(v = 0)-Ar interaction potentials.

引用

页码：2422 / 2427

页数：11

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