Generation of Butatrienone (Vinylideneketene) By Flash Vacuum Pyrolysis and Measurement of its Microwave Spectrum

Ronald D. Brown; Roger F.C. Brown; Frank W. Eastwood; Peter D. Godfrey; Donald McNaughton

doi:10.1021/ja00510a045

Generation of Butatrienone (Vinylideneketene) By Flash Vacuum Pyrolysis and Measurement of its Microwave Spectrum

Ronald D. Brown, Roger F.C. Brown, Frank W. Eastwood, Peter D. Godfrey, Donald McNaughton

School of Chemistry

Research output: Contribution to journal › Article › Research › peer-review

40 Citations (Scopus)

Abstract

Butatrienonc (vinylidenckctene) has been generated by flash vacuum pyrolysis of buta-2, 3-dicnoic trifluoroacetic anhydride. The microwave spectrum has been observed and assigned in the region 8-83 GHz. Rotational and centrifugal distortion constants have been determined for CH2=C-C=C=0, CHD=C=C=C=0, and CD2=C=C=C=0. The dipole moment was found to be µ_a= 1 967 ± 0.019 D (6.47 ±0.06 X 10^-30Cm). There is evidence that butatrienone is a planar molecule of Cii symmetry, and that the heavy atoms lie along a straight line.

Original language	English
Pages (from-to)	4705-4708
Number of pages	4
Journal	Journal of the American Chemical Society
Volume	101
Issue number	16
DOIs	https://doi.org/10.1021/ja00510a045
Publication status	Published - 1 Feb 1979

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title = "Generation of Butatrienone (Vinylideneketene) By Flash Vacuum Pyrolysis and Measurement of its Microwave Spectrum",

abstract = "Butatrienonc (vinylidenckctene) has been generated by flash vacuum pyrolysis of buta-2, 3-dicnoic trifluoroacetic anhydride. The microwave spectrum has been observed and assigned in the region 8-83 GHz. Rotational and centrifugal distortion constants have been determined for CH2=C-C=C=0, CHD=C=C=C=0, and CD2=C=C=C=0. The dipole moment was found to be µa= 1 967 ± 0.019 D (6.47 ±0.06 X 10-30Cm). There is evidence that butatrienone is a planar molecule of Cii symmetry, and that the heavy atoms lie along a straight line.",

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T1 - Generation of Butatrienone (Vinylideneketene) By Flash Vacuum Pyrolysis and Measurement of its Microwave Spectrum

AU - Brown, Ronald D.

AU - Brown, Roger F.C.

AU - Eastwood, Frank W.

AU - Godfrey, Peter D.

AU - McNaughton, Donald

PY - 1979/2/1

Y1 - 1979/2/1

N2 - Butatrienonc (vinylidenckctene) has been generated by flash vacuum pyrolysis of buta-2, 3-dicnoic trifluoroacetic anhydride. The microwave spectrum has been observed and assigned in the region 8-83 GHz. Rotational and centrifugal distortion constants have been determined for CH2=C-C=C=0, CHD=C=C=C=0, and CD2=C=C=C=0. The dipole moment was found to be µa= 1 967 ± 0.019 D (6.47 ±0.06 X 10-30Cm). There is evidence that butatrienone is a planar molecule of Cii symmetry, and that the heavy atoms lie along a straight line.

AB - Butatrienonc (vinylidenckctene) has been generated by flash vacuum pyrolysis of buta-2, 3-dicnoic trifluoroacetic anhydride. The microwave spectrum has been observed and assigned in the region 8-83 GHz. Rotational and centrifugal distortion constants have been determined for CH2=C-C=C=0, CHD=C=C=C=0, and CD2=C=C=C=0. The dipole moment was found to be µa= 1 967 ± 0.019 D (6.47 ±0.06 X 10-30Cm). There is evidence that butatrienone is a planar molecule of Cii symmetry, and that the heavy atoms lie along a straight line.

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JF - Journal of the American Chemical Society

IS - 16

ER -

Generation of Butatrienone (Vinylideneketene) By Flash Vacuum Pyrolysis and Measurement of its Microwave Spectrum

Abstract

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