High resolution microwave spectroscopy of the isomeric pair vinylcyanoacetylene and cyanovinylacetylene

Details High resolution microwave spectroscopy of the isomeric pair vinylcyanoacetylene and cyanovinylacetylene High resolution microwave spectroscopy of the isomeric pair vinylcyanoacetylene and cyanovinylacetylene

May 2004

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2004jmosp.225...93t&link_type=abstract

Journal of Molecular Spectroscopy, Volume 225, Issue 1, p. 93-95.

Astronomy and Astrophysics

Astronomy

4

Density-Functional Theory, Fine And Hyperfine Structure, Radio-Frequency And Microwave Spectra

Scientific paper

The carbon chain molecules vinylcyanoacetylene and cyanovinylacetylene have been investigated between 8 and 41GHz by Fourier transform microwave spectroscopy of a supersonic molecular beam. Owing to the high spectral resolution of the present technique, significantly more accurate rotational and centrifugal distortion constants have been derived for both molecules. In addition, the dipole moments have been calculated at the B3LYP/cc-pVTZ level of theory. Because these carbon chains are similar in structure and composition to known astronomical molecules and because of their high polarity, both species are good candidates for radioastronomical detection.

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