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  • 33.20.K  (2)
  • 36.40.+d  (1)
  • Springer  (3)
  • 1985-1989  (3)
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  • Springer  (3)
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Year
  • 1
    Electronic Resource
    Electronic Resource
    The relationship of Au55(PPh3)12Cl6 to colloidal gold (1989)
    Springer
    The European physical journal 12 (1989), S. 533-536 
    Details
    ISSN: 1434-6079
    Keywords: 33.20.K ; 35.20.G ; 36.40
    Source: Springer Online Journal Archives 1860-2000
    Topics: Physics
    Notes: Abstract The electronic (UV-visible) spectrum of the molecular cluster Au55(PPh3)12Cl6 shows features corresponding to the 520 nm plasma resonance and the shorter-wavelength interband transition of colloidal gold. These absorptions differ qualitatively from the simpler one-electron transitions of lower-nuclearity cluster molecules. Differential scanning calorimetry has been used to measure the enthalpy of decomposition of Au55(PPh3)12Cl6. The Au-Au bonding appears to be substantially stronger than in bulk gold.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01427012
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    Paper (German National Licenses)
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  • 2
    Electronic Resource
    Electronic Resource
    EPR on the high-nuclearity palladium cluster Pd561Phen36O200 (1989)
    Springer
    The European physical journal 12 (1989), S. 457-459 
    Details
    ISSN: 1434-6079
    Keywords: 75.60.Jp ; 36.40.+d ; 76.30.-V
    Source: Springer Online Journal Archives 1860-2000
    Topics: Physics
    Notes: Abstract We present EPR measurements on the polynuclear metal-cluster compound Pd561Phen36O200 for temperatures ranging from 300 K to 8 K. No temperature dependence was found in either the resonance field or the line-width. The signal intensity shows a Curie-like behavior. The effect of the ligand on this behavior is discussed. We also discuss the possibility that quantum size effects govern the observed temperature dependence of the line-width and resonance field.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01426996
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  • 3
    Electronic Resource
    Electronic Resource
    Optical properties of systems containing Au55-clusters (1989)
    Springer
    The European physical journal 12 (1989), S. 515-520 
    Details
    ISSN: 1434-6079
    Keywords: 33.20.K ; 36.40 ; 42.20 ; 78.40 ; 82.70
    Source: Springer Online Journal Archives 1860-2000
    Topics: Physics
    Notes: Abstract Gold cluster compounds were investigated which contain clusters of 55 gold atoms in each unit. The ligands stabilize these clusters and, hence, many-cluster systems can be prepared which mainly show the properties of the single dressed cluster. Experimental results of optical and electron-microscopical investigations are presented and shortly discussed in view of the question whether the clusters are molecular or solid-state like.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01427009
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