Gas-phase rotational spectroscopy of AlCCH (X̃ 1Σ +): A model system for organo-aluminum compounds

M. Sun, D. T. Halfen, J. Min, D. J. Clouthier, L. M. Ziurys

Research output: Contribution to journalArticlepeer-review

10 Scopus citations


The pure rotational spectrum of AlCCH in its ground electronic state (X̃ 1Σ +) has been measured using Fourier transform microwave (FTMW) and mm/sub-mm direct absorption spectroscopy. AlCCH was created in a DC discharge from HCCH and aluminum vapor, either produced by a Broida-type oven, or generated from Al(CH 3) 3 in a supersonic jet source. Rotational transitions were measured for five isotopologues of AlCCH, with 13C and deuterium substitutions. From these data, rotational and Al and D quadrupole parameters were determined, as well as an accurate structure. AlCCH appears to exhibit an acetylenic arrangement with significant covalent character in the Al-C single bond.

Original languageEnglish (US)
Pages (from-to)11-16
Number of pages6
JournalChemical Physics Letters
StatePublished - Nov 20 2012

ASJC Scopus subject areas

  • Physics and Astronomy(all)
  • Physical and Theoretical Chemistry


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