Laboratory detection and submillimeter spectrum of NaCCH (X̄1∑)

B. Z. Li, L. M. Ziurys

Research output: Contribution to journalArticle

11 Scopus citations


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 1∑ 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.

Original languageEnglish (US)
Pages (from-to)L215-L217
JournalAstrophysical Journal
Issue number2 PART II
StatePublished - Jan 1 1997


  • ISM: molecules
  • Line: identification
  • Molecular data

ASJC Scopus subject areas

  • Astronomy and Astrophysics
  • Space and Planetary Science

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