Isotope effect of the stereodynamics for the reactions F + HO → HF + O and F + DO → DF + O

• Published in: Journal of physics. B, Atomic, molecular, and optical physics Atomic, molecular, and optical physics, 2009-08, Vol.42 (16), p.165006-165006 (6)
• Main Authors: Zhao, Juan, Xu, Yan, Meng, Qing-Tian
• Format: Article
• Language: English
• Subjects: Atomic and molecular collision processes and interactions; Atomic and molecular physics; Chemical reactions, energy disposal, and angular distribution, as studied by atomic and molecular beams; Exact sciences and technology; Physics; Scattering of atoms, molecules and ions
• ISSN: 0953-4075; 1361-6455
• DOI: 10.1088/0953-4075/42/16/165006

Based on the 13A''triplet state the product polarizations for the reactions F + HO - > HF + O and F + DO - > DF + O are studied by using the quasi-classical trajectory (QCT) method. The four generalized polarization-dependent differential cross-sections (PDDCSs) (2pi/sigma)(dsigma00/domegat), (2pi/sigma)(dsigma20/domegat), (2pi/sigma)(dsigma22+/domegat) and (2pi/sigma)(dsigma21-/domegat) have been calculated in the centre-of-mass frame. The distribution of the angle between k and j', P(thetar), the distribution of the dihedral angle denoting k - k' - j' correlation, P(r), as well as the angular distribution of product rotational vectors in the form of polar plots P(thetar,r) are calculated. The evident influence of isotope substitution on the product polarization is revealed. This effect may be derived from the different mass factor or the effective potential well depth in the two reactions.