The autoionization dynamics of water molecules induced by Ne*(P-3(2,0)) collisions has been studied. The energy dependence of the total ionization cross section is measured together with relative abundances of product ions in the 0.05-0.15 eV range. The data are analyzed by using an optical potential model within a semiclassical approach. The real part of the potential is formulated applying a semiempirical method, while the imaginary part has been used in the fitting procedure of the data adjusting its pre-exponential factor. The good agreement between calculations and experiment confirms the attractive nature of the potential energy surface driving the Ne/-H2O dynamics. (C) 2012 Elsevier B.V. All rights reserved.
Collisional autoionization dynamics of Ne( 3P 2,0)- H 2O / N. Balucani, A. Bartocci, B. Brunetti, P. Candori, S. Falcinelli, F. Palazzetti, F. Pirani, F. Vecchiocattivi. - In: CHEMICAL PHYSICS LETTERS. - ISSN 0009-2614. - 546:(2012), pp. 34-39. [10.1016/j.cplett.2012.07.051]
Collisional autoionization dynamics of Ne( 3P 2,0)- H 2O
A. BartocciSecondo
;
2012
Abstract
The autoionization dynamics of water molecules induced by Ne*(P-3(2,0)) collisions has been studied. The energy dependence of the total ionization cross section is measured together with relative abundances of product ions in the 0.05-0.15 eV range. The data are analyzed by using an optical potential model within a semiclassical approach. The real part of the potential is formulated applying a semiempirical method, while the imaginary part has been used in the fitting procedure of the data adjusting its pre-exponential factor. The good agreement between calculations and experiment confirms the attractive nature of the potential energy surface driving the Ne/-H2O dynamics. (C) 2012 Elsevier B.V. All rights reserved.
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