Rotational alignment in MnO*(A6Σ+) from the reaction Mn + O2

Spence, Matthew and Levy, Martin (1997) Rotational alignment in MnO*(A6Σ+) from the reaction Mn + O2. Journal of Physical Chemistry A, 101 (41). pp. 7490-7498. ISSN 1089-5639

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The collision energy dependence of chemiluminescence, and its polarization relative to the initial velocity vector k, has been determined for MnO*(A6Σ+) product from the Mn + O2 reaction in the range 0-1500 kJ mol-1. Analysis of the excitation function by the multiple line-of-centers approach indicates that three parallel processes, attributed to a4DJ,z8PJ (perhaps), and a6DJ atoms, contribute. All seem to involve a significant excess barrier and a forward transition state shift with increasing collision energy, suggesting that reaction proceeds via inner ionic-covalent curve crossings at short internuclear distances. The measured alignments are relatively modest, indicating a predominant contribution to MnO rotation from O-O recoil in a nonlinear Mn-O-O configuration.

Item Type: Article
Subjects: F100 Chemistry
Department: Faculties > Health and Life Sciences > Applied Sciences
Depositing User: Becky Skoyles
Date Deposited: 16 Feb 2015 15:23
Last Modified: 12 Oct 2019 17:29

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