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State-specific reactions and autoionization dynamics of Ar2+ produced by synchrotron radiation

SYSNO ASEP	0322880
Document Type	J - Journal Article
R&D Document Type	Journal Article
Subsidiary J	Článek ve WOS
Title	State-specific reactions and autoionization dynamics of Ar2+ produced by synchrotron radiation
Title	Stavově specifické reakce a dynamika autoionizace Ar2+ připraveného synchrotronním zářením
Author(s)	Franceschi, P. (IT) Thissen, R. (FR) Dutuit, O. (FR) Alcaraz, Ch. (FR) Soldi-Lose, H. (FR) Bassi, D. (IT) Ascenzi, D. (IT) Tosi, P. (IT) Žabka, Ján (UFCH-W)_{RID, ORCID, SAI} Herman, Zdeněk (UFCH-W)_RID Coreno, M. (IT) De Simone, M. (IT)
Source Title	International Journal of Mass Spectrometry. - : Elsevier - ISSN 1387-3806 Roč. 280, 1-3 (2009), s. 119-127
Number of pages	9 s.
Language	eng - English
Country	NL - Netherlands
Keywords	argon ; dications ; photoionization ; ion molecule reaction
Subject RIV	CF - Physical ; Theoretical Chemistry
R&D Projects	IAA400400702 GA AV ČR - Academy of Sciences of the Czech Republic (AV ČR)
CEZ	AV0Z40400503 - UFCH-W (2005-2011)
UT WOS	000263195500019
DOI	10.1016/j.ijms.2008.07.020
Annotation	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 Ar2+ (P-3, D-1 and S-1) with several neutral targets (He, Ne, Kr, Xe, D-2, and CH4). State sensitive measurements have been performed by producing the different Ar2+ 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 Ar2+ 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 At in the vicinity of the double ionization threshold.
Workplace	J. Heyrovsky Institute of Physical Chemistry
Contact	Michaela Knapová, michaela.knapova@jh-inst.cas.cz, Tel.: 266 053 196
Year of Publishing	2009

Number of the records: 1