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  • Electronic Resource  (3)
  • 33.80.Eh  (2)
  • PACS: 36.40.Mr Spectroscopy and geometrical structure of clusters – 71.24.+q Electronic structure of clusters and nanoparticles  (1)
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  • Electronic Resource  (3)
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  • 1
    Electronic Resource
    Electronic Resource
    Electronic structure and reactivity of Mg+(H2O) n cluster ions (1993)
    Springer
    The European physical journal 26 (1993), S. 180-182 
    Details
    ISSN: 1434-6079
    Keywords: 36.40.+d ; 33.80.Eh
    Source: Springer Online Journal Archives 1860-2000
    Topics: Physics
    Notes: Abstract Electronically excited states of magnesium-water cluster ions, Mg+(H2O) n ,n=1–5, are studied by photodissociation after mass selection. The observed photodissociation spectra are assigned to the2P–2S type transitions localized on the Mg+ ion with the aid of ab initio CI calculations. In addition to evaporation of water molecules, photoinduced intracluster reaction to produce MgOH+(H2O) n is found to occur efficiently, with pronounced size dependence. The intriguing features observed in the mass spectrum of nascent cluster ions are discussed in relation to the stepwise solvation of this reaction.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01425657
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    Paper (German National Licenses)
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  • 2
    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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  • 3
    Electronic Resource
    Electronic Resource
    Near-threshold photoionization of germanium clusters in the 248–144 nm region: ionization potentials for Gen (1999)
    Springer
    The European physical journal 9 (1999), S. 123-126 
    Details
    ISSN: 1434-6079
    Keywords: PACS: 36.40.Mr Spectroscopy and geometrical structure of clusters – 71.24.+q Electronic structure of clusters and nanoparticles
    Source: Springer Online Journal Archives 1860-2000
    Topics: Physics
    Notes: Abstract. We examine the photoionization thresholds of Ge n (n=2-34) with a wide photon energy (5.0–8.6 eV) using a laser photoionization time-of-flight mass spectrometry. A high-output vacuum ultraviolet light generated with stimulated Raman scattering is used as the ionization light source in the energy above 6.0 eV. A characteristic size dependence of ionization potential (IP) with a maximum at n=10 is found for clusters smaller than 22 atoms. The rather high IP of Ge10 in comparison with its neighbors is consistent with the results on the photodissociation study of Ge n +. We also find that IPs decrease rapidly from n=16 to 22, and then decrease at a much slower rate for larger clusters. These features in IPs are similar to those of Sin reported in our previous paper, except for the smaller IP gap of Ge n at n≈20. We discuss these results on IPs in relation to their electronic structure and stability.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/s100530050410
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    Paper (German National Licenses)
    Fulltext
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