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Deuterium hyperfine structure in interstellar C3HD
M B Bell1, J K Watson, P A Feldman
1Herzberg Institute of Astrophysics, National Research Council of Canada, Ottawa, Ontario.
Chemical Physics Letters
|May 22, 1987
Abstract:
The deuterium nuclear quadrupole hyperfine structure of the transition 1(10)-1(01) of the ring molecule cyclopropenylidene-d1 (C3HD) has been observed in emission from interstellar molecular clouds. The narrowest linewidths (approximately 7 kHz) so far observed are in the cloud L1498. The derived D coupling constants Xzz = 186.9(1.4) kHz, eta=0.063(18) agree well with correlations based on other molecules.