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  • 1965-1969  (2)
  • 1915-1919
  • 1969  (2)
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  • 1965-1969  (2)
  • 1915-1919
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  • 1
    Electronic Resource
    Electronic Resource
    The mobility of dilute solutions of impurities in He3 at low temperatures (1969)
    Springer
    The European physical journal 221 (1969), S. 186-210 
    Details
    ISSN: 1434-601X
    Source: Springer Online Journal Archives 1860-2000
    Topics: Physics
    Notes: Abstract The mobility of impurities in He3 is calculated using Kubo's formula and assuming a quasi-particle-like behaviour of the impurities. This is reasonable in the low temperature limit. If one has to deal with charged particles having a large cross-section for the scattering of He3 quasi-particles on account of their large effective radii, this limit is as low as presumably 0.01 °K. For uncharged particles the validity of the theory is not confined to such a small region of the temperature. The mobility behaves as 1/T 2 and its dependence upon the frequency is almost that of a classical sphere experiencing a force of friction proportional to its velocity. The parameters occuring in the formula for the mobility (the effective mass and the scattering cross-section between He3 and the impurities) may in principle be determined by independent experiments.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01392142
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    Paper (German National Licenses)
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  • 2
    Electronic Resource
    Electronic Resource
    Über den Mechanismus der Reaktion zwischen Alkansulfonylchloriden und Phenolaten (1969)
    New York, NY : Wiley-Blackwell
    Journal für Praktische Chemie/Chemiker-Zeitung 311 (1969), S. 596-603 
    Details
    ISSN: 0021-8383
    Keywords: Chemistry ; Organic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Notes: Bei der Umsetzung von Isopropyl-, Neopentyl- und Cyclohexylsulfochlorid mit Natriumphenolaten in Gegenwart von D2O entstehen α-monodeuterierte Alkansulfonsäurearyl-ester. Bei der Umsetzung von 2-Deutero-2-propylsulfochlorid mit Natriumphenolat tritt ein kinetischer Isotopieeffekt kH:kD∼4,5 auf. Offenbar verlaufen die untersuchten Reaktionen nach einem Eliminierungs-Additions-Mechanismus über Sulfene als Zwischenprodukte.
    Additional Material: 2 Ill.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/prac.19693110409
    Library Location Call Number Volume/Issue/Year Availability
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    Paper (German National Licenses)
    Fulltext
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