Abstract
THE preparation of penta-1 : 3-diyne was reported by Armitage, Jones and Whiting1, and it has recently been emphasized2 that chemical and ultra-violet spectroscopic evidence supports strongly the attributed structure. In confirmation, we have measured the microwave pure rotation spectrum of the substance made by this method, as observed in a video sweep spectrometer, and find it to be that of a symmetric-top molecule of structure H3C—C≡C—C≡C—H, all five carbon atoms lying on the molecular axis.
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References
Armitage, J. B., Jones, E. R. H., and Whiting, M. C., J. Chem. Soc., 1993 (1952).
Jones, E. R. H., and Whiting, M. C., J. Chem. Soc. (in the press).
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Trambarulo, R., and Gordy, W., J. Chem. Phys., 18, 1613 (1950).
Anderson, W. E., Trambarulo, R., Sheridan, J., and Gordy, W., Phys. Rev., 82, 58 (1951).
Jeffrey, G. A., and Rollett, J. S., Proc. Roy. Soc., A, 213, 86 (1952).
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HEATH, G., THOMAS, L. & SHERIDAN, J. Microwave Spectrum of Penta-1 : 3-diyne. Nature 172, 771 (1953). https://doi.org/10.1038/172771a0
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DOI: https://doi.org/10.1038/172771a0
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