Stereo correlated dynamics in the energy transfer process of aligned N2 (A 3Σ(u)+) + oriented NO (X 2Π, Ω = 1∕2) → NO (A 2Σ+) + N2 (X 1Σ(g)+).
Steric effect for the NO (A (2)Σ(+)) formation in the aligned N(2) (A (3)Σ(u)(+)) + oriented NO (X (2)Π, Ω = 1∕2) reaction has been observed as a function of the mutual orientational configurations between the two molecular reactants in the collision frame. Multidimensional molecular steric opacity function has been determined. A significant NO (X (2)Π) alignment dependence is recognized in contrast with little dependence on NO (X (2)Π) orientation. The NO alignment selectivity turns out to depend on the N(2) (A (3)Σ(u)(+)) alignment: The axial configuration of NO (X (2)Π) is favorable for the axial and sideways configurations of N(2) (A (3)Σ(u)(+)), while the sideways configuration of NO (X (2)Π) is favorable for the oblique configuration of N(2) (A (3)Σ(u)(+)) at an orientation angle of θ(v(R)) ∼ 45°. with respect to the relative velocity (v(R)).
Department of Chemistry, Graduate School of Science, Osaka University, Toyonaka, Osaka 560-0043, Japan. ohyama@chem.sci.osaka-u.ac.jp
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Maruyama