Vibrational spectra of (π-thiophene) chromiumtricarbonyl

  • B. V. Lokshin
  • E. B. Rusach
  • Yu. D. Konovalov
Physical Chemistry


  1. 1.

    The IR and Raman spectra of triphenylchromiumtricarbonyl were studied. The frequencies of the vibrations of the complex were assigned.

  2. 2.

    Closeness of the vibrational spectra of thiophene and the π-thiophene ligand in a complex was noted. The greatest changes are observed for the frequencies of the valence vibrations of the ring (a 30–70 cm−1 low-frequency shift in comparison with thiophene) and for the nonplanar vibrations of CH (a high-frequency shift of 70 cm−1).

  3. 3.

    The similarity of the vibrational spectra of thiophenechromiumtricarbonyl and benzenechromium-tricarbonyl in the region of the vibrations of the fragment LCr(CO)3 and the metal-ring vibrations indicates a closeness of the properties of benzene and thiophene as π-ligands.



Benzene Raman Spectrum Thiophene Great Change Vibrational Spectrum 
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Copyright information

© Plenum Publishing Corporation 1975

Authors and Affiliations

  • B. V. Lokshin
    • 1
  • E. B. Rusach
    • 1
  • Yu. D. Konovalov
    • 1
  1. 1.Institute of Heteroorganic CompoundsAcademy of Sciences of the USSRMoscow

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