Laboratory microwave spectrum of the cyclic C3D radical

Details Laboratory microwave spectrum of the cyclic C3D radical Laboratory microwave spectrum of the cyclic C3D radical

Nov 1990

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1990apj...363l..13y&link_type=abstract

Astrophysical Journal, Part 2 - Letters (ISSN 0004-637X), vol. 363, Nov. 1, 1990, p. L13-L15.

Astronomy and Astrophysics

Astrophysics

10

Deuterium, Free Radicals, Hydrocarbons, Microwave Spectra, Carbon Monoxide, Electron Transitions, Gas Mixtures, Ground State, Helium, Laboratories

Scientific paper

The rotational spectral lines of the cyclic C3D radical in the 2B2 electronic ground state are detected in the laboratory. The radical is produced by discharging a gaseous mixture of C2D2, Co, and He, and the spectrum is observed in the 148-360 GHz region. The molecular constants including hyperfine coupling constants due to the D nucleus are determined by the least-squares analysis from 52 observed line frequencies. The frequencies of several low-N transitions needed for future radioastronomical observations are calculated from the molecular constants.

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