Charge transfer in collision of N2+and He

Autor:	Kate Kirby, Alexander Dalgarno, Hossein Sadeghpour, G. P. Lafyatis, Y. Sun
Rok vydání:	1996
Předmět:	Dipole chemistry.chemical_compound Partial charge Helium atom Chemistry Metastability Diabatic Physical and Theoretical Chemistry Atomic physics Adiabatic process Effective nuclear charge Ion
Zdroj:	International Reviews in Physical Chemistry. 15:53-64
ISSN:	1366-591X 0144-235X
DOI:	10.1080/01442359609353174
Popis:	Charge transfer cross-sections in the collision of a doubly-charged nitrogen ion and a helium atom are evaluated with a close-coupling formalism. The charge transfer produces N+(3P), N+(1D) and He+ ions via the 2Σ+ and 2π molecular states of NHe2+. We describe a method for obtaining a particular diabatic representation from a set of adiabatic dipole moments. Comparison with Landau-Zener model calculations is made and the importance of inner couplings for the production of charge transfer states is demonstrated. Collisional rate coefficients are also obtained. At 104 K, the rate coefficient for charge transfer into the ground N+(3P) state is about 1·3 × 10−10 cm3 s−1 and for charge transfer into the metastable N+(1D) state 1·8 × 10−11 em3 s−1.
Databáze:	OpenAIRE
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