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  • 1985-1989  (3)
  • 12-Substituted-14β-hydroxy steroids  (1)
  • 21.10.Re  (1)
  • 23.20.Ck  (1)
Material
Years
Year
Keywords
  • 1
    Electronic Resource
    Electronic Resource
    Springer
    The European physical journal 334 (1989), S. 125-131 
    ISSN: 1434-601X
    Keywords: 21.10.−k ; 23.20.Ck ; 27.70.+q
    Source: Springer Online Journal Archives 1860-2000
    Topics: Physics
    Notes: Abstract Lifetimes of excited states in164Hf were measured using the Doppler-shift recoil-distance method. Gamma-gamma coincidences at eleven target-stopper distances were measured using the twelve Compton-suppressed Ge-detectors of the OSIRIS spectrometer. From the coincidence spectra the intensities of the Doppler-shifted and unshiftedγ-lines were determined. The quadrupole momentsQ tof transitions within the rotational bands derived from the lifetimes are constant within the experimental uncertainties up to the 18+ state. TheQ tvalue for the transition between the ground- and the neutroni 13 2/2 band (s-band) which is strongly reduced compared to the values of the in-band transitions is used to deduce a band interaction energy of 34 keV ≦V≦57 keV.
    Type of Medium: Electronic Resource
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  • 2
    ISSN: 1434-601X
    Keywords: 21.10.Re ; 23.20.Lv ; 27.70.+q
    Source: Springer Online Journal Archives 1860-2000
    Topics: Physics
    Notes: Abstract Excited states in162Hf were investigated up to spinI ≈ 38 using the anti-Comptonspectrometer array HERA with 21 detectors. In addition, some information was obtained on161Hf. The analysis of triple coincidences was crucial for the construction of the level schemes. The results are interpreted within the framework of the cranked shell model and are compared to neighbouring isotopes and isotones, showing Fermi level and deformation effects. The systematic behaviour of the band crossings in the Hf isotopes and theN=90 isotones is discussed.
    Type of Medium: Electronic Resource
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  • 3
    Electronic Resource
    Electronic Resource
    Chichester : Wiley-Blackwell
    Organic Magnetic Resonance 26 (1988), S. 85-88 
    ISSN: 0749-1581
    Keywords: 13C NMR ; 1H NMR ; 12-Substituted-14β-hydroxy steroids ; 14α-Steroids ; Chemistry ; Analytical Chemistry and Spectroscopy
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Notes: γgauche effects of 12-substituted-14β-hydroxy- and 14α-steroids were studied by 1H and 13C NMR spectroscopy. A linear correlation was found between the 1H chemical shift of 4H-17 and the 13C shift of C-17 for C-12-substituted steroids. This correlation can be explained by steric interactions.
    Additional Material: 4 Ill.
    Type of Medium: Electronic Resource
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