Laboratory Detection and Submillimeter Spectrum of NaCCH (X∼ 1Σ)
Abstract
Sodium monoacetylide has been observed in the laboratory for the first time using millimeter/submillimeter direct absorption techniques. The species was produced by the reaction of sodium vapor and acetylene under DC discharge conditions. Nineteen rotational transitions of NaCCH in its X 1Σ ground state and 14 lines of the deuterium isotopomer NaCCD were recorded in the range 270-510 GHz. From these data, highly accurate rotational constants were determined. The detection of NaCN and NaCl in the envelope of the evolved carbon star IRC +10216 suggests that other sodium-bearing species may be present in this object.
- Publication:
-
The Astrophysical Journal
- Pub Date:
- June 1997
- DOI:
- 10.1086/310707
- Bibcode:
- 1997ApJ...482L.215L
- Keywords:
-
- ISM: MOLECULES;
- LINE: IDENTIFICATION;
- MOLECULAR DATA;
- ISM: Molecules;
- Line: Identification;
- Molecular Data