Infrared absorptions characteristic of organic carbonate derivatives and related compounds

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Abstract

Infrared absorption bands characteristic of carbonates

, carbamates
, monothiolcarbonates
, chloroformates
, carbamoyl chlorides
, thiol carbamates
, dithiol carbonates
, and thiol-chloroformates
have been found. The behavior of these frequencies in the various compounds can be related and explained by considering the vibrations to be roughly analogous to those of the carbonyl dihalides.

References (16)

  • R.A. Nyquist et al.

    Spectrochim. Acta

    (1959)
  • L.W. Herscher

    Spectrochim. Acta

    (1959)
  • R.A. Nyquist. Unpublished...
  • R. Mecke et al.

    Chem. Ber.

    (1957)
  • A.W. Baker et al.

    J. Am. Chem. Soc.

    (1960)
  • L.W. Herscher et al.

    J. Opt. Soc. Am.

    (1958)
  • J. Overend et al.

    J. Chem. Phys.

    (1960)
  • J. Overend et al.

    Trans. Faraday Soc.

    (1959)
    b J.C. Evans, Unpublished...
There are more references available in the full text version of this article.

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