Submillimeter-wave spectrum of the ethynyl radical, CCH, up to 1 THz

Details Submillimeter-wave spectrum of the ethynyl radical, CCH, up to 1 THz Submillimeter-wave spectrum of the ethynyl radical, CCH, up to 1 THz

May 2000

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2000a%26a...357l..65m&link_type=abstract

Astronomy and Astrophysics, v.357, p.L65-L67 (2000)

Astronomy and Astrophysics

Astrophysics

10

Molecular Data, Methods: Laboratory, Techniques: Spectroscopic, Ism: Clouds, Ism: Molecules, Radio Lines: Ism

Scientific paper

The N = 7 <- 6 to 11 <- 10 pure rotational transitions of CCH, X 2 Sigma +, were measured in the laboratory between 611 and 961 GHz. The radical was produced in a dc glow discharge of a mixture of helium and acetylene. The electron spin-rotation splitting was resolved. The new line frequencies were fit together with previously published data, providing greatly improved spectroscopic constants, such as B = 43 647.529 01 (115) MHz, as well as precise rest frequencies well beyond 1 THz.

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