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  • 1
    Electronic Resource
    Electronic Resource
    Lattice dynamics and hyperfine interactions of C60Fe(CO)4 (1996)
    College Park, Md. : American Institute of Physics (AIP)
    The Journal of Chemical Physics 104 (1996), S. 7-10 
    Details
    ISSN: 1089-7690
    Source: AIP Digital Archive
    Topics: Physics , Chemistry and Pharmacology
    Notes: Detailed 57Fe Mossbauer experiments over the range 85〈T〈210 K have been carried out on the tetra-carbonyl iron derivative of C60(I) as well as on several related organometallic solids. The observed isomer shift and quadrupole splitting parameters are consistent with a bonding interaction between the metal center and the ligand which involves a single carbon–carbon double bond of the buckminsterfullerene. The temperature dependence of the recoil-free fraction, compared to analogous data for maleic anhydride Fe(CO)4(II), suggests that the two previously observed low frequency lattice modes in C60 persist in I. Contrary to expectations, there is no significant temperature-dependent vibrational anisotropy (Gol'danskii–Karyagin effect) evident in the above temperature range. © 1996 American Institute of Physics.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1063/1.470869
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  • 2
    Electronic Resource
    Electronic Resource
    FTIR sample cell thermal lag calibration using phase transitions in three molecular solids (1985)
    [S.l.] : American Institute of Physics (AIP)
    Review of Scientific Instruments 56 (1985), S. 1593-1596 
    Details
    ISSN: 1089-7623
    Source: AIP Digital Archive
    Topics: Physics , Electrical Engineering, Measurement and Control Technology
    Notes: The temperature dependence of four characteristic infrared absorptions accompanying phase transitions in three molecular solids have been used as "infrared thermometers'' to estimate the thermal lag of KBr pellets held in an Invar sample cell in a Fourier transform infrared spectrometer at (variable) cryogenic temperatures. Due to the low power deposition on the sample in a typical FTIR spectrometer, thermal lags of less than 0.5 K can be routinely achieved at temperatures in the range 77≤T≤300 K.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1063/1.1138159
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