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Issue 26, 2019
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Direct observation of product-pair correlations in rotationally inelastic collisions of ND3 with D2

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Abstract

We present a combined experimental and theoretical study of state-to-state inelastic scattering of ND3(j±k = 11) with D2 (j = 0, 1, 2, 3) molecules at collision energies around 800 cm−1. Using a crossed molecular beam apparatus which employs the combination of Stark deceleration and velocity map imaging, we observe the correlated rotational excitations of both collision partners. For D2, both elastic (ΔjD2 = 0), inelastic excitation (j = 0 → j = 2) and inelastic de-excitation (j = 2 → j = 0) processes are observed. For a number of final ND3 states, inelastic channels in which D2 is rotationally excited or de-excited appear surprisingly strong. The experimental results are in excellent agreement with the predictions from quantum scattering calculations which are based on an ab initio ND3–D2 potential energy surface.

Graphical abstract: Direct observation of product-pair correlations in rotationally inelastic collisions of ND3 with D2

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Article information


Submitted
17 Nov 2018
Accepted
08 Jan 2019
First published
08 Jan 2019

Phys. Chem. Chem. Phys., 2019,21, 14033-14041
Article type
Paper

Direct observation of product-pair correlations in rotationally inelastic collisions of ND3 with D2

Z. Gao, J. Loreau, A. van der Avoird and S. Y. T. van de Meerakker, Phys. Chem. Chem. Phys., 2019, 21, 14033
DOI: 10.1039/C8CP07109H

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