Laboratory microwave spectroscopy of the C3N radical in the vibrationally excited state nu5

Details Laboratory microwave spectroscopy of the C3N radical in the vibrationally excited state nu5 Laboratory microwave spectroscopy of the C3N radical in the vibrationally excited state nu5

Jun 1989

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1989a%26a...217l...5m&link_type=abstract

Astronomy and Astrophysics (ISSN 0004-6361), vol. 217, no. 1-2, June 1989, p. L5-L8.

Astronomy and Astrophysics

Astrophysics

12

Cyano Compounds, Free Radicals, Microwave Spectra, Molecular Excitation, Carbon Stars, Least Squares Method, Molecular Rotation, Stellar Envelopes, Vibrational Spectra

Scientific paper

The first laboratory study of C3N in its lowest bending state nu5 and a search for its lines in the carbon star envelope IRC+10216 are reported. Ten rotational transitions, each split into four fine structure components, are observed, and the molecular constants are derived from a least-squares analysis. The spin-orbit constant and the Lambda-type doubling constant are found to be 5295 (42) MHz and 1.916 (54) MHz, respectively. None of 35 rotational transitions of the nu5 bending state of C3N are detected in IRC+10216.

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