"Quartet states"

Ab initio investigation of high multiplicity Σ+–Σ+ optical transitions in the spectra of CN and isoelectronic species
Based on high-level ab initio calculations, we predict the existence of a strong 4Σ+–4Σ+ optical transition (dav=1.6 D) near 328 nm (T …
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Ab initio investigation of high multiplicity Σ+–Σ+ optical transitions in the spectra of CN and isoelectronic species