Letter | Published:

Isotope Effects in the Infra-red Spectra of some Carbon-14-labelled Acids, an Ester and Sodium Salt

Nature volume 204, pages 675676 (14 November 1964) | Download Citation



ISOTOPE shifts in the infra-red have been reported for a number of compounds containing deuterium, nitrogen-15 and oxygen-18, for example, the work of Pinchas et al.1,2, but little has been published on carbon-13- or carbon-14-labelled compounds. George3 has examined the spectrum of 1-13C-propene-l, and Karabatsos4,5 some 13C-di-iso-propyl ketones and 2,2-dimethyl propionic acid; as regards carbon-14 compounds, only the spectra of carbon dioxide and barium carbonate appear to have been reported hitherto.

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    , , and , J. Chem. Soc., 3968 (1962).

  2. 2.

    , , and , J. Chem. Soc., 1128 (1963).

  3. 3.

    , Nature, 194, 672 (1962).

  4. 4.

    , J. Org. Chem., 25, 315 (1960).

  5. 5.

    , J. Org. Chem., 25, 1409 (1960).

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  1. Analytical Department, Radiochemical Centre, Amersham, Bucks.

    • B. H. BAXTER
    •  & A. F. C. HORSLER


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