The electronic spectrum of PN. A configuration interaction study |
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Authors: | F Grein A Kapur |
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Institution: | Department of Chemistry, University of New Brunswick, Bag Service #45222, Fredericton, New Brunswick E3B 6E2, Canada |
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Abstract: | Potential energy curves were calculated for the ground state of PN and for all excited singlet and triplet states resulting from the 2π → 3π, 7σ → 3π, 2π → 8σ, and 7σ → 8σ orbital excitations. CI studies at 4 Å served to establish dissociation energies. Spectroscopic constants were calculated, and are in good agreement with those of the known X1Σ+ and A1Π states. Overall, their similarity with those observed for N2 is striking. Various states considered to perturb the known excitations are discussed. The recently discovered second 1Σ+ state is included. |
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