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State-Selected Ion-Molecule Reactions: Statistical Calculations With Constraints, Cornelis J. Uiterwaal, J. Van Eck, A. Niehaus
State-Selected Ion-Molecule Reactions: Statistical Calculations With Constraints, Cornelis J. Uiterwaal, J. Van Eck, A. Niehaus
C.J.G.J. Uiterwaal Publications
For the two reactive systems, NH3+(Eint)+N H3→NH4++NH2 and H2+ (Eint)+H2→H3+ + H, for which the relative cross sections were measured earlier in our group for Ec.m.≈40 meV we calculated the relative cross section as a function of internal energy using the statistical Rice– Ramsperger–Kassel–Marcus (RRKM) theory that implicitly conserves total energy and total angular momentum. We found satisfactory agreement between theory and experiment by imposing rather mild constraints upon the loose transition state configuration. These constraints involve …
State-Selected Ion-Molecule Reactions: Charge Transfer And Atomic Rearrangement Processes In Thermal Energy Collisions Of H2+ (X;V)+N2 And Of N2+ (X,A;V) + H2, Cornelis J. Uiterwaal, J. Van Eck, A. Niehaus
State-Selected Ion-Molecule Reactions: Charge Transfer And Atomic Rearrangement Processes In Thermal Energy Collisions Of H2+ (X;V)+N2 And Of N2+ (X,A;V) + H2, Cornelis J. Uiterwaal, J. Van Eck, A. Niehaus
C.J.G.J. Uiterwaal Publications
Using the photo-electron-product-ion-coincidence method (PEPICO) we have measured state-selective cross sections for the following processes: (A) N2+ (X,A;v)+ H2→N2H+ + H, (B) H2+ (X;v) + N2→N2H+ + H, (C) N2+ (X,A;v)+H2→H2+ + N2, and (D) H2+ (X;v)+N2→N2+ + H2 . The measurements were performed at thermal velocities (Ec.m. ≈ 40 meV).We have found that the charge transfer processes (C) and (D) …