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Photodissociation of Hydrogen Iodide on the Surface of Large Argon Clusters: The Orientation of the Librational Wave Function and the Scattering from the Cluster Cage
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SYSNO ASEP 0101130 Document Type J - Journal Article R&D Document Type Journal Article Subsidiary J Ostatní články Title Photodissociation of Hydrogen Iodide on the Surface of Large Argon Clusters: The Orientation of the Librational Wave Function and the Scattering from the Cluster Cage Title Fotodisociace iodidu vodíku na povrchu velkých klastrů argonu: Orientace librační vlnové funkce a rozptylu z klastrové klece Author(s) Slavíček, Petr (UFCH-W) RID
Jungwirth, Pavel (UFCH-W)
Lewerenz, M. (FR)
Nahler, N. H. (DE)
Fárník, M. (DE)
Buck, U. (DE)Source Title Journal of Chemical Physics. - : AIP Publishing - ISSN 0021-9606
Roč. 120, č. 9 (2004), s. 4498-4511Number of pages 14 s. Language eng - English Country US - United States Keywords photodissociation ; hydrogen iodide ; clusters Subject RIV CF - Physical ; Theoretical Chemistry R&D Projects LN00A032 GA MŠMT - Ministry of Education, Youth and Sports (MEYS) CEZ AV0Z4040901 - UFCH-W Annotation A new set of photodissociation experiments and simulations of HI on Ar_n clusters with an average size n=139 has been carried out for different laser polarizations. The doped clusters are prepared by a pick-up process. The hydrogen halide molecule is then photodissociated by a UV laser pulse and the outgoing H fragment is ionized by resonance enhanced multi-photon ionization (REMPI) in a (2+1)excitation scheme within the same laser pulse at a wavelength of 243 nm. The measured time-of-flight spectra are transformed into hydrogen kinetic energy distributions. They exhibit a strong fraction of caged H atoms at zero kinetic energy and peaks at the unperturbed cage exit for both spin-orbit channels nearly independent of the polarization. At this dissociation wavelength the bare HI molecule exhibits a strict state separation, with a parallel transition to the spin orbit excited state and perpendicular transitions to the ground state. The experimental results molecular simulation techniques. Workplace J. Heyrovsky Institute of Physical Chemistry Contact Michaela Knapová, michaela.knapova@jh-inst.cas.cz, Tel.: 266 053 196 Year of Publishing 2005
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