Gas-phase rotational spectroscopy of AlCCH ((X)over-tilde(1)Sigma(+)): A model system for organo-aluminum compounds

作者：Sun M; Halfen D T; Min J; Clouthier D J; Ziurys L M^*

来源：Chemical Physics Letters, 2012, 553: 11-16.

DOI：10.1016/j.cplett.2012.08.034

• Covalent character
• Dc discharges
• Direct absorption spectroscopies
• Gasphase
• Ground electronic state
• Isotopologues
• Model system
• Quadrupoles
• Rotational spectra
• Rotational spectroscopy
• Rotational transition
• Single bond
• Supersonic jet source

The pure rotational spectrum of AlCCH in its ground electronic state ((X) over tilde (1)Sigma(+)) 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(CH3)(3) in a supersonic jet source. Rotational transitions were measured for five isotopologues of AlCCH, with C-13 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.

• 出版日期2012-11-20