M. Fatima, H. S. P. Müller, O. Zingsheim, F. Lewen, V. M. Rivilla, I. Jiménez-Serra, J. Martín-Pintado, and S. Schlemmer
reported on the
Millimetre and Submillimetre Spectroscopy of Isobutene and Its Detection in the Molecular Cloud G+0.693
Astron. Astrophys. 680, Art. No. A25 (2023).
The identification was made by stacking data from the GBT line survey that covers ~24.9 GHZ of the 7.9 to 36.4 GHz region. The E form of 1-cyano-1,3-butadiene is less abundant than the two detected cyanocyclopentadiene isomers by factors of a few, somewhat depending on the sources of the column densities of the cyclic species.

Contributor(s): H. S. P. Müller; 12, 2023