Issue 26, 2019

Differential steric effects in the inelastic scattering of NO(X) + Ar: spin–orbit changing transitions

Abstract

Spin–orbit changing transitions for bond-axis oriented collisions of NO(X) with Ar have been investigated with full quantum state selection via a crossed molecular beam experiment at collision energies of 532 cm−1 and 651 cm−1. NO(X) molecules were selected in their ground rotational state (Ω = 0.5, j = 0.5, f) before being adiabatically oriented using a static electric field, such that either the N- or O-end of the molecule was directed towards the incoming Ar atom. After collision, NO(X, Ω′ = 1.5, j′, e) molecules were probed quantum state specifically using velocity-map ion imaging, coupled with resonantly enhanced multi-photon ionization. Differences were observed between the experimental ion images and differential cross sections for collisions occurring at the two ends of the molecule, with results that could largely be accounted for by quantum mechanical scattering calculations. The bond-axis oriented data for the spin–orbit changing collisions are compared with similar results obtained previously for spin–orbit conserving transitions, and for field free scattering of NO(X) with Ar.

Graphical abstract: Differential steric effects in the inelastic scattering of NO(X) + Ar: spin–orbit changing transitions

Article information

Article type
Paper
Submitted
06 अक्तूबर 2018
Accepted
07 नवम्बर 2018
First published
10 नवम्बर 2018

Phys. Chem. Chem. Phys., 2019,21, 14173-14185

Differential steric effects in the inelastic scattering of NO(X) + Ar: spin–orbit changing transitions

M. Brouard, S. D. S. Gordon, B. Nichols, V. Walpole, F. J. Aoiz and S. Stolte, Phys. Chem. Chem. Phys., 2019, 21, 14173 DOI: 10.1039/C8CP06225K

To request permission to reproduce material from this article, please go to the Copyright Clearance Center request page.

If you are an author contributing to an RSC publication, you do not need to request permission provided correct acknowledgement is given.

If you are the author of this article, you do not need to request permission to reproduce figures and diagrams provided correct acknowledgement is given. If you want to reproduce the whole article in a third-party publication (excluding your thesis/dissertation for which permission is not required) please go to the Copyright Clearance Center request page.

Read more about how to correctly acknowledge RSC content.

Social activity

Spotlight

Advertisements