Abstract
Ab initio calculations of transition frequencies and linestrengths for the rotational spectrum and ν2 fundamental rovibrational of He2N2+ have been calculated. The calculations are based on variational solutions of an Eckart–Watson rovibrational Hamiltonian, which has embedded a highly accurate ab initio force field of Hughes and von Nagy-Felsobuki. Although experimental data are unavailable, the ab initio data presented may be timely in assisting laboratory and possibly interstellar detection of this helide ion.
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