Intensity borrowing in high J levels of the c³π-X¹Σ⁺ (0-0) transition of carbon monoxide

Jacob Baker, F Launay

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4 Citations (Scopus)

Abstract

Several weak new absorption lines in the room temperature spectrum of carbon monoxide have been identified in the 108.9 - 109.0 nm wavelength range. The lines emerge from the long wavelength side of the C(1)Sigma(+)-X(1)Sigma(+) (0-0) band and appear to form a single rotational branch. Their most probable assignments are to high J lines (J > 40) of the P-O branch of the c(3)Pi-X(1)Sigma(+) (0-0) band rather than to lines of the k(3)Pi-X(1)Sigma(+) (2-0) band. The appearance of these lines may be explained by intensity borrowing from the C-X (0-0) transition as a result of mixing between the f(1e), spin-parity component of the c(3)Pi state and the C(1)Sigma(+) state, which are predicted to cross in this energy region. (c) 2005 Elsevier B.V. All rights reserved.
Original languageEnglish
Pages (from-to)296-301
Number of pages6
JournalChemical Physics Letters
Volume415
DOIs
Publication statusPublished - 11 Nov 2005

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