The millimeter-wave spectrum of SrCCH(X2Σ+): chemical trends in metal monoacetylide species
✍ Scribed by B.P. Nuccio; A.J. Apponi; L.M. Ziurys
- Publisher
- Elsevier Science
- Year
- 1995
- Tongue
- English
- Weight
- 374 KB
- Volume
- 247
- Category
- Article
- ISSN
- 0009-2614
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✦ Synopsis
The pure rotational spectrum of the SrCCH radical (X 25'.+) has been recorded using millimeter/sub-mm direct absorption techniques. SrCCH was synthesized in a dc discharge by the reaction of strontium vapor, produced in a Broida-type oven, and acetylene. Seventeen rotational transitions of this molecule were recorded in the range 248-370 GHz and fine structure splittings resolved. Rotational and spin-rotation parameters were determined using a 2~ Hamiltonian. SrCCH appears to be linear with an ionic structure, as previously suggested. Comparison of structural parameters with MgCCH and CaCCH suggest subtle differences in the bonding of these monoacetylide species.