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ID: 13421.0, MPI für Dynamik und Selbstorganisation / Molekulare Wechselwirkung
Effect of the symmetry of H2 molecules on their rotations around an OCS molecule in superfluid 4He droplets
Authors:Grebenev, S.; Sartakov, B.; Toennies, J. P.; Vilesov, A.
Language:English
Date of Publication (YYYY-MM-DD):2002-11-25
Title of Journal:Physical Review Letters
Journal Abbrev.:Phys. Rev. Lett.
Volume:89
Issue / Number:22
Start Page:225301
End Page:225301
Sequence Number of Article:225301
Review Status:Peer-review
Audience:Not Specified
Abstract / Description:The infrared spectra of OCS-(H2)n clusters in cold (0.15 K) superfluid 4He droplets coated with 3He exhibit resolved rotational bands for each n up to n=8 para-H2 (pH2) or ortho-D2 (oD2) molecules. An analysis of the different Q- branch intensities based on the different spin symmetries of pH2 and oD2 indicates the formation of symmetric 5- or 6- membered rings around the linear carbonyl sulfide (OCS) chromophore. The rings of distinguishable oD2 are found to undergo axial rotations, whereas for 6 pH2 molecules the symmetry-allowed rotational levels lie too high to be excited at the 0.15 K droplet temperatures.
External Publication Status:published
Document Type:Article
Communicated by:Folkert Müller-Hoissen
Affiliations:MPI für Dynamik und Selbstorganisation
External Affiliations:Univ Halle Wittenberg, FB Phys, D-06099 Halle Saale, Germany; Russian Acad Sci, Inst Gen Phys, Moscow 119991, Russia
Identifiers:ISI:000179205100027 [ID No:1]
ISSN:0031-9007 [ID No:2]
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