State-specific reactions and autoionization dynamics of Ar2+ produced by synchrotron radiation
| Autor: | Daniela Ascenzi, Christian Alcaraz, Paolo Tosi, Héloïse Soldi-Lose, Zdenek Herman, Jan Zabka, Marcello Coreno, Roland Thissen, Monica de Simone, Davide Bassi, Odile Dutuit, Pietro Franceschi |
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| Přispěvatelé: | Dipartimento di Fisica [Povo], Università degli Studi di Trento (UNITN), Laboratoire de Planétologie de Grenoble (LPG), Université Joseph Fourier - Grenoble 1 (UJF)-Institut national des sciences de l'Univers (INSU - CNRS)-Centre National de la Recherche Scientifique (CNRS), Laboratoire de Chimie Physique D'Orsay (LCPO), Université Paris-Sud - Paris 11 (UP11)-Institut de Chimie du CNRS (INC)-Centre National de la Recherche Scientifique (CNRS), V. Čermák Laboratory, Czech Academy of Sciences [Prague] (CAS)-J. Heyrovsky Institute of Physical Chemistry, Istituto di Metodologie Inorganiche e di Plasmi (IMIP)-CNR (IMIP-CNR), IMIP-CNR, Laboratorio Nazionale TASC, INFM-CNR, The Italian Government PRIN through Contract Nos. 2003035479 and 2005033911, the Grant Agency of the Academy of Sciences of the Czech Republic (IAAA400400702), the IA-SFS European Network Contract |
| Rok vydání: | 2009 |
| Předmět: |
Chemistry
Double ionization Ion yield 010401 analytical chemistry Synchrotron radiation Dication Condensed Matter Physics 7. Clean energy 01 natural sciences State specific Photoionization 0104 chemical sciences Electronic states Autoionization Ion molecule reaction Excited state 0103 physical sciences Argon Physical and Theoretical Chemistry Atomic physics 010306 general physics Instrumentation Spectroscopy Charge exchange |
| Zdroj: | International journal of mass spectrometry 280 (2009): 119–127. doi:10.1016/j.ijms.2008.07.020 info:cnr-pdr/source/autori:Pietro Franceschi a; Roland Thissen b; Odile Dutuit b; Christian Alcaraz c; Heloise Soldi-Lose c; Davide Bassi a; Daniela Ascenzi a; Paolo Tosi a; Jan Zabka d; Zdenek Herman d ; Marcello Coreno e; Monica de Simone f/titolo:State-specific reactions and autoionization dynamics of Ar2+ produced by synchrotron radiation/doi:10.1016%2Fj.ijms.2008.07.020/rivista:International journal of mass spectrometry (Print)/anno:2009/pagina_da:119/pagina_a:127/intervallo_pagine:119–127/volume:280 International Journal of Mass Spectrometry International Journal of Mass Spectrometry, Elsevier, 2009, 280 (1-3), pp.119-127. ⟨10.1016/j.ijms.2008.07.020⟩ |
| ISSN: | 1387-3806 |
| Popis: | The long-lived excited states of doubly charged rare gases can markedly affect their reactivity. In this paper we demonstrate the presence of strong state-specific effects in the charge exchange of Ar 2+ ( 3 P, 1 D and 1 S) with several neutral targets (He, Ne, Kr, Xe, D 2 , and CH 4 ). State sensitive measurements have been performed by producing the different Ar 2+ electronic states via tunable synchrotron radiation (Elettra-Trieste, Italy and SuperACO-Orsay, France). From the product ion yield data of charge transfer, state-selected total cross-sections have been deduced. Using the state-specific reactivity of Ar 2+ towards different neutral targets, it has been possible to extract the photon-energy-dependent production branching of the three doubly charged states and to investigate the autoionization dynamics of neutral or singly charged Ar in the vicinity of the double ionization threshold. |
| Databáze: | OpenAIRE |
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