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  • 2000-2004
  • 1995-1999
  • 1980-1984  (3)
  • 1983  (3)
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  • 2000-2004
  • 1995-1999
  • 1980-1984  (3)
Year
  • 1
    Electronic Resource
    Electronic Resource
    Electronic rearrangement on molecules accompanyingβ-decay investigated by nuclear resonance fluorescence (1983)
    Springer
    The European physical journal 311 (1983), S. 253-257 
    Details
    ISSN: 1434-601X
    Source: Springer Online Journal Archives 1860-2000
    Topics: Physics
    Notes: Abstract Using gaseous60CoI2 sources, the velocity distribution of60Ni nuclei afterβ-decay of60Co has been measured by the nuclear-resonance-fluorescence coincidence (NRFC) method. By comparison with model calculations, information is obtained on the rearrangement of electrons on the molecule as a consequence of the change of nuclear charge. In 42% of the rearrangement processes bound (NiI2)+ or (NiI)+ molecule ions are formed. In 24% the molecule is singly charged but with the bonds between Ni and its molecular partners ruptured. In 34% the charging of more than one molecular partner leads to Coulomb explosion of the molecule. The probability of finding more than one charge on the molecule is larger by a factor of 2 as compared to the probability for electron shake-off on an isolated Ni atom.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01415678
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    Paper (German National Licenses)
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  • 2
    Electronic Resource
    Electronic Resource
    Microporous glasses with acidic sites (1983)
    Springer
    Reaction kinetics and catalysis letters 22 (1983), S. 19-22 
    Details
    ISSN: 1588-2837
    Source: Springer Online Journal Archives 1860-2000
    Topics: Chemistry and Pharmacology
    Description / Table of Contents: Abstract При обработке микропористых стекол Al(NO3)3 на них образуются сильные кислые центры. Исходя из измерений адсорбции аммония, сравнивались кислые центры на модифицированных пористых стеклах и на цеолитах с высоким содерзанием кремния.
    Notes: Abstract Strong acidic sites are formed on microporous glasses by Al(NO3)3-treatment. A comparison is given between acidic sites on modified porous glasses and high silica zeolites based on ammonia adsorption measurements.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF02064799
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    Paper (German National Licenses)
    Fulltext
  • 3
    Electronic Resource
    Electronic Resource
    Boron migration and thermal stability of porous glass catalysts (1983)
    Springer
    Reaction kinetics and catalysis letters 22 (1983), S. 23-27 
    Details
    ISSN: 1588-2837
    Source: Springer Online Journal Archives 1860-2000
    Topics: Chemistry and Pharmacology
    Description / Table of Contents: Abstract Была опрелелена концентрация бора на ловерхности пористых стёкол из натриевого борокремнезёмного стекла в зависимости от степени нагревания последнего в температурном интервале между 500–700°C. Было исследовано влияние митрации бора к поверхности на дисперсность и активность пористого стекло-платинового катализатора, предназначенного для дегидроциклизации н-гексана.
    Notes: Abstract Surface boron concentration of porous glasses from sodium borosilicate glass was determined in dependence on heating between 500–700°C. The influence of boron migration to surface on dispersity and activity for dehydrocyclization of n-hexane on porous glass-platinum catalysts was investigated.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF02064800
    Library Location Call Number Volume/Issue/Year Availability
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    Paper (German National Licenses)
    Fulltext
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