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  • 33.20.Lg  (1)
  • PACS: 36.40.-c Atomic and molecular clusters – 33.20.Ea Infrared spectra – 61.46.+w Clusters, nanoparticles, and nanocrystalline materials  (1)
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  • 1
    Electronic Resource
    Electronic Resource
    Photoionization and photodissociation studies on aluminum-water clusters and their ions (1993)
    Springer
    The European physical journal 26 (1993), S. 177-179 
    Details
    ISSN: 1434-6079
    Keywords: 36.40.+d ; 33.80.Eh ; 33.20.Lg
    Source: Springer Online Journal Archives 1860-2000
    Topics: Physics
    Notes: Abstract Clusters of aluminum atoms solvated with water molecules, Al(H2O) n , have been studied by one-photon ionization and time-of-flight mass spectroscopy. Characteristic feature is observed in the photoionization mass spectrum: The intensities of the product Al+(H2O) n ions are about one order of magnitude larger forn≤4 than forn≥5. The ionization potentials are determined forn up to 4. The obtained results are discussed in connection with the recent theoretical works. The photodissociation spectroscopy has also been applied to the Al+(H2O) n ions withn=1−10. The observed spectra are ascribed to the transition localized on the Al+ ion on the analogy of the results of Mg+(H2O) n photodissociation. The dissociation dynamics is also discussed from the fragmentation pattern with the aid of the recent theoretical work on the structure and stability of these ions.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01425656
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    Paper (German National Licenses)
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  • 2
    Electronic Resource
    Electronic Resource
    Electronic spectra of solvated NH4 radicals NH4(NH3)n for n=1-6 (1999)
    Springer
    The European physical journal 9 (1999), S. 309-311 
    Details
    ISSN: 1434-6079
    Keywords: PACS: 36.40.-c Atomic and molecular clusters – 33.20.Ea Infrared spectra – 61.46.+w Clusters, nanoparticles, and nanocrystalline materials
    Source: Springer Online Journal Archives 1860-2000
    Topics: Physics
    Notes: Abstract. Electronic absorption spectra of NH4(NH3) n (n=1-6) were measured in the energy region of 4500–14000 cm-1. The spectra were assigned to the transition derived from a 3p 2F2-3s 2A1 Rydberg–Rydberg transition of NH4. A drastic decrease of excitation energy from the transition of NH4 (15062 cm-1) down to 5800 cm-1 for NH4(NH3)4 cluster was observed, while there was no clear difference for n=4, 5, and 6. Successive binding energies of NH4(NH3) n in the 3p-type state determined from the spectra were found to decrease monotonically with increasing n, in a similar manner to those of a positive ion, NH4 +. The drastic spectral change was ascribed to spontaneous ionization of NH4 in ammonia clusters.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/s100530050445
    Library Location Call Number Volume/Issue/Year Availability
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    Paper (German National Licenses)
    Fulltext
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