Correlations in rotational energy transfer for NO-D-2 inelastic collisions

摘要: We present a combined experimental and theoretical study of state-to-state inelastic collisions between NO (X 2Π1/2, j = 1/2, f) radicals D2 (j 0, 1, 2, 3) molecules at collision energies 100 cm−1 750 cm−1. Using the combination Stark deceleration velocity map imaging, we fully resolve pair-correlated excitations in scattered molecules. Both spin–orbit conserving changing transitions radical are measured, while coincident rotational excitation 0 → 2) de-excitation 2 3 1) observed. De-excitation shows strong dependence on NO. observe translation-to-rotation energy transfer as well direct rotation-to-rotation lowest probed. The results good agreement with cross sections obtained from quantum coupled-channels calculations based recent NO–D2 potential surfaces. observed trends correlated scattering understood terms quadrupole–quadrupole interaction.