Skip to main content

Thank you for visiting nature.com. You are using a browser version with limited support for CSS. To obtain the best experience, we recommend you use a more up to date browser (or turn off compatibility mode in Internet Explorer). In the meantime, to ensure continued support, we are displaying the site without styles and JavaScript.

  • Letters to Editor
  • Published:

Quadrupole Hyperfine Splitting in the Microwave Spectrum of Nitromethane

Abstract

MICROWAVE studies1,2 of the rotational spectrum of nitromethane, CH3NO2, have been concerned chiefly with the very low internal barrier to rotation. This barrier height has been determined from the microwave spectrum2 by Tannenbaum, Myers and Gwinn as V6=25.2±0.1 J mol−1. Our purpose here is to report quadrupole hyperfine splitting in the microwave spectrum of CH3NO2 caused by coupling of the nitrogen nucleus with the overall rotation.

This is a preview of subscription content, access via your institution

Access options

Buy this article

Prices may be subject to local taxes which are calculated during checkout

References

  1. Dailey, B. P., and Wilson, jun., E. B., Phys. Rev., 72, 522 (1947). Bak, B., Knudsen, E. S., and Madsen, E., Phys. Rev. Lett., 75, 1622 (1949).

    Google Scholar 

  2. Tannenbaum, E., Myers, R. J., and Gwinn, W. D., J. Chem. Phys., 25, 42 (1956).

    Article  ADS  Google Scholar 

  3. Bragg, J. K., and Golden, S., Phys. Rev., 75, 735 (1949).

    Article  ADS  Google Scholar 

  4. Legon, A. C., and Milien, D. J., J. Chem. Soc. (A), 2, 1736 (1968).

    Article  Google Scholar 

  5. Milien, D. J., and Sinnott, K. M., J. Chem. Soc, 2, 350 (1958). Oka, T., and Morino, Y., J. Mol. Spectr., 11, 349 (1963).

    Article  Google Scholar 

  6. Milien, D. J., and Morton, J. R., J. Chem. Soc., 2, 1523 (1960).

    Article  Google Scholar 

  7. Cox, A. P., and Riveros, J. M., J. Chem. Phys., 42, 3106 (1965).

    Article  ADS  Google Scholar 

  8. Linnett, J. W., The Electronic Structure of Molecules (Methuen, 1964).

    Google Scholar 

  9. Pauling, L., The Nature of the Chemical Bond (Cornell University Press, 1960).

    MATH  Google Scholar 

  10. Townes, C. H., and Dailey, B. P., J. Chem. Phys., 17, 782 (1949).

    Article  ADS  Google Scholar 

  11. Smith, E. K., and Magnuson, D. W., Phys. Rev., 87, 226A (1952).

    Google Scholar 

  12. Lees, R. M., Curl, jun., R. F., and Baker, J. G., J. Chem. Phys., 45, 2037 (1966).

    Article  ADS  Google Scholar 

  13. Oja, T., Marino, R. A., and Bray, P. J., Phys. Lett., 26A, 11 (1967).

    Article  ADS  Google Scholar 

Download references

Author information

Authors and Affiliations

Authors

Rights and permissions

Reprints and permissions

About this article

Cite this article

COX, A., WARING, S. & MORGENSTERN, K. Quadrupole Hyperfine Splitting in the Microwave Spectrum of Nitromethane. Nature Physical Science 229, 22–23 (1971). https://doi.org/10.1038/physci229022b0

Download citation

  • Received:

  • Issue Date:

  • DOI: https://doi.org/10.1038/physci229022b0

Search

Quick links

Nature Briefing

Sign up for the Nature Briefing newsletter — what matters in science, free to your inbox daily.

Get the most important science stories of the day, free in your inbox. Sign up for Nature Briefing