Issue 19, 2004

Rotational and ro-vibrational transitions of He2C2+

Abstract

Ab initio calculations of transition frequencies and line strengths have been calculated for the “forbidden” rotational spectrum and ν2 fundamental ro-vibrational of the 1A1 state of He2C2+. For the “pure” rotational spectrum, the vibration ground state transitions are very weak, with the intensity of the strongest line, 331–440, being only 2.15 × 10−22 cm molecule−1. A group of significant line strengths is attributed to ro-vibrational transitions between (〈0,2,0〉 ←〈0,1,0〉) and (〈0,1,0〉 ← 〈0,0,0〉) bands. These band centers are calculated at 309.5 and 330.4 cm−1 respectively. The strongest band is identified with the (〈0,2,0〉 ← 〈0,0,0〉) transition with a band center of 625.1 cm−1 and line strength of 2.58 × 10−19 cm molecule−1 for the (440 ← 441) transition.

Article information

Article type
Communication
Submitted
27 Jul 2004
Accepted
01 Sep 2004
First published
14 Sep 2004

Phys. Chem. Chem. Phys., 2004,6, 4542-4545

Rotational and ro-vibrational transitions of He2C2+

Sudarko and E. I. von Nagy-Felsobuki, Phys. Chem. Chem. Phys., 2004, 6, 4542 DOI: 10.1039/B411500G

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