Ab initio potential energy surfaces for excited states of the NO2+ molecular ion and for the reaction of N+ with O-2
UNSPECIFIED. (2001) Ab initio potential energy surfaces for excited states of the NO2+ molecular ion and for the reaction of N+ with O-2. JOURNAL OF CHEMICAL PHYSICS, 115 (20). pp. 9320-9330. ISSN 0021-9606Full text not available from this repository.
Multi-reference configuration interaction calculations are presented for excited states of the NO2+ molecular ion. Bending potential energy curves are calculated for a number of low-lying states and dissociation to [NO+O](+) is considered for linear geometries and for a bond angle of 120 degrees. The very fast dissociation of the (b) over tilde (3)A(2) state can be understood in terms of a very shallow quasi-bound minimum on the potential energy surface whereas the potential well for the (a) over tilde B-3(2) state is considerably deeper. Potential energy curves relevant to the reaction N+(P-3)+O-2(X (3)Sigma (-)(g)) are calculated. It is suggested that the reaction proceeds via a nonadiabatic transition in the entrance channel from the 2 (1)Sigma (+) surface to the 1 (1)Sigma (+) surface which correlates adiabatically with O(D-1)+NO+(X (1)Sigma (+)). The observation of O(P-3)+NO+(X (1)Sigma (+)) as a minor channel is interpreted in terms of a nonadiabatic transition, mediated by spin-orbit coupling, from the 1 (1)Sigma (+) surface to the 1 (3)Pi surface in the exit channel. (C) 2001 American Institute of Physics.
|Item Type:||Journal Article|
|Subjects:||Q Science > QC Physics|
|Journal or Publication Title:||JOURNAL OF CHEMICAL PHYSICS|
|Publisher:||AMER INST PHYSICS|
|Date:||22 November 2001|
|Number of Pages:||11|
|Page Range:||pp. 9320-9330|
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