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  • 42.55H  (1)
  • Far-infrared (FIR) spectra  (1)
  • infrared (IR) spectra  (1)
  • 1
    Electronic Resource
    Electronic Resource
    Confirmation of far infrared laser assignments from CH3-deformation and CH3-rocking states of optically pumped methanol (1988)
    Springer
    Applied physics 47 (1988), S. 319-324 
    Details
    ISSN: 1432-0649
    Keywords: 33.20E ; 42.55H
    Source: Springer Online Journal Archives 1860-2000
    Topics: Physics
    Notes: Abstract High-resolution Fourier transform spectroscopy has been applied to confirm previously proposed assignments for nine far infrared (FIR) laser lines from the CH3-deformation state of CH3OH and one line from the CH3-rocking state. Accurate frequencies are deduced for the observed and other predicted FIR laser transitions. FIR torsional branch frequencies in the ground state which were used in the confirmation are presented. Comments are also made on the OH-bending mode of CH3OH.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00716093
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    Paper (German National Licenses)
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  • 2
    Electronic Resource
    Electronic Resource
    Fourier Transform Spectrum and Term Values for the CO-Stretching Mode of CD3OH Methanol (2000)
    Springer
    International journal of infrared and millimeter waves 21 (2000), S. 1061-1083 
    Details
    ISSN: 1572-9559
    Keywords: infrared (IR) spectra ; methanol ; CD3OH ; torsion
    Source: Springer Online Journal Archives 1860-2000
    Topics: Physics
    Notes: Abstract The Fourier transform infrared (FTIR) spectrum of the CO-stretching fundamental band of CD3OH has been recorded at a resolution of 0.002 cm-1. Assignments are reported for 35 subbands in the n = 0 ground torsional state, covering K = 0 to 9 for all torsional symmetries plus K = 10 A, and 12 assorted A and E subbands in the n = 1 first excited torsional state ranging from K = 0 up to K = 5. The subband wavenumbers have been fitted to J(J + 1) power-series energy expansions to obtain subband origins and a compact representation of the spectral observations. With the use of known ground-state energies, CO-stretch energy term values have been determined and tabulated. Least-squares fitting of the subband origins to a fourth-order Hamiltonian model for the CO-stretch mode is discussed.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1023/A:1026496304827
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    Paper (German National Licenses)
    Fulltext
  • 3
    Electronic Resource
    Electronic Resource
    High-resolution far-infrared spectroscopy of C-13 methanol (1988)
    Springer
    International journal of infrared and millimeter waves 9 (1988), S. 1119-1140 
    Details
    ISSN: 1572-9559
    Keywords: Far-infrared (FIR) spectra ; methanol ; torsion
    Source: Springer Online Journal Archives 1860-2000
    Topics: Physics
    Notes: Abstract The high-resolution far-infrared (FIR) Fourier transform spectrum of13CH3OH has been studied from 25–350 cm−1, andb-typerR-branches in the torsional ground state have been assigned. The branches have been fitted to phenomeno-logical expansion parameters, which reproduce the branch frequencies generally to well within ±0.001 cm−1. An interesting and relatively novel ΔK=4 perturbation, localized to levels around J=18, has been observed between (nτK)=(019) and (125) states.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01009305
    Library Location Call Number Volume/Issue/Year Availability
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    Paper (German National Licenses)
    Fulltext
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