Bibliographic Details
| Title: |
Quantum-State Resolved Bimolecular Collisions of Velocity-Controlled OH with NO Radicals. |
| Authors: |
Kirste, Moritz, Xingan Wang, Schewe, H. Christian, Meijer, Gerard, Liu, Kopin, van der Avoird, Ad, Janssen, Liesbeth M. C., Gubbels, Koos B., Groenenboom, Gerrit C., van de Meerakker, Sebastiaan Y. T. |
| Source: |
Science (pre-March 2025). 11/23/2012, Vol. 338 Issue 6110, p1060-1063. 4p. |
| Subjects: |
Bimolecular collisions, Inelastic scattering, Quantum chemistry, Radicals (Chemistry), Hydroxyl group, Nitric oxide, Atom-molecule collisions |
| Abstract: |
Whereas atom-molecule collisions have been studied with complete quantum-state resolution, interactions between two state-selected molecules have proven much harder to probe. Here, we report the measurement of state-resolved inelastic scattering cross sections for collisions between two open-shell molecules that are both prepared in a single quantum state. Stark-decelerated hydroxyl (OH) radicals were scattered with hexapole-focused nitric oxide (NO) radicals in a crossed-beam configuration. Rotationally and spin-orbit inelastic scattering cross sections were measured on an absolute scale for collision energies between 70 and 300 cm-1. These cross sections show fair agreement with quantum coupled-channels calculations using a set of coupled model potential energy surfaces based on ab initio calculations for the long-range nonadiabatic interactions and a simplistic short-range interaction. This comparison reveals the crucial role of electrostatic forces in complex molecular collision processes. [ABSTRACT FROM AUTHOR] |
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| Database: |
Psychology and Behavioral Sciences Collection |
