Forbidden rotational and rovibrational transitions in H3+: First principles calculations

Details Forbidden rotational and rovibrational transitions in H3+: First principles calculations Forbidden rotational and rovibrational transitions in H3+: First principles calculations

May 1990

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1990jmosp.141..104m&link_type=abstract

Journal of Molecular Spectroscopy, Volume 141, Issue 1, p. 104-117.

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Scientific paper

Calculations of the linestrengths and transition frequencies of the forbidden pure rotational spectrum of H3+ in the vibrationally excited ν2 state are presented. These transitions occur in the far-infrared region, and their observation may be complicated by ν1 - ν2 difference transitions. Examples of these are also given. Forbidden rovibrational transition frequencies and linestrengths have also been calculated in the frequency range 2000-3000 cm-1. The bands (ν2 + ν1) - ν2 and (2ν2 (l = 0) + ν1) - 2ν2 (l = 2) are found to be particularly strong. Possible phenomenological explanations for the observed line intensities are discussed. Two routes to obtaining the energy levels of the ν1 manifold of H3+ are suggested.

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