Pair-correlated stereodynamics for diatom-diatom rotational energy transfer: NO(A2Σ+) + N2

Thomas Frederick Murray Luxford, Thomas R Sharples, Kenneth George McKendrick, Matthew Lawrence Costen

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Abstract

We have performed a crossed molecular beam velocity-map ion imaging study of state-to-state rotational energy transfer of NO(A2Σ+, v = 0, N = 0, j = 0.5) in collisions with N2, and have measured rotational angular momentum polarization dependent images of product NO(A) rotational levels N′ = 3 and 5-11 for collisions at an average energy of 797 cm-1. We present an extension of our previously published [Luxford et al. J. Chem. Phys. 145, 174304 (2016)] image analysis which includes the effect of rotational excitation of the unobserved collision partner. We report differential cross sections and angle-resolved angular momentum alignment moments for NO(A) levels N′ = 3 and 5-11 as a function of the rotational excitation of the coincident N2 partner. The scattering dynamics of NO(A) + N2 shares similarities with that previously reported for NO(A) + Ne and Ar, although with detailed differences. We use comparison of the measurements reported here to the scattering of NO(A) with Ne, and the known NO(A)-Ne potential energy surface, to draw conclusions about the previously unknown NO(A)-N2 potential.
Original languageEnglish
Article number013912
Number of pages11
JournalJournal of Chemical Physics
Volume147
Issue number1
Early online date4 Apr 2017
DOIs
Publication statusPublished - 7 Jul 2017

Keywords

  • Rotational energy transfer
  • Angular momentum polarization
  • DIFFERENTIAL CROSS-SECTIONS
  • crossed molecular beams
  • Nitric oxide

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    Pair-correlated stereodynamics for diatom-diatom rotational energy transfer: NO(A2Σ+) + N2

    Luxford, T. F. M. (Creator), Sharples, T. R. (Creator), McKendrick, K. G. (Creator) & Costen, M. L. (Creator), Heriot-Watt University, 21 Mar 2017

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