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New High-resolution Analysis of the ν1+3ν3 Band of Nitrogen Dioxide in the Near Infrared Spectral Region by S. Miljanic; A. Perrin; J. Orphal; C.E. Fellows; P. Chelin is a Chemistry article available to read on EtoBox.

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The high-resolution Fourier-transform absorption spectrum of the 14 N 16 O 2 molecule was recorded in the near infrared 5200-6005 cm À1 spectral range. Starting from the results of a previous study [R.E. Blank, M.D. Olman, C.D. Hause, J. Mol. Spectrosc. 33 (1970) 109-118] a new analysis of the m 1 + 3m 3 band located at 5984.705 cm À1 has been performed. The new assignments involve energy levels of the (1 0 3) vibrational state with rotational quantum numbers up to K a = 8 and N = 47. The spin-rotation energy levels were satisfactorily reproduced within their experimental uncertainty using a theoretical model which takes explicitly into account the Coriolis interactions between the spin-rotational levels of the (1 0 3) vibrational state and those of (1 2 2) and of (0 8 0), the anharmonic interactions between the (1 2 2) and (0 8 0) vibrational states together with the electron spin-rotation resonances within the (1 0 3), (1 2 2) and (0 8 0) vibrational states. As a consequence, precise vibrational energies, rotational, spin-rotational, and coupling constants were obtained for the triad {(1 2 2), (0 8 0), (1 0 3)} of interacting states of 14 N 16 O 2 . Using these parameters a compr

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Author

S. Miljanic; A. Perrin; J. Orphal; C.E. Fellows; P. Chelin

Publisher

Elsevier Science; Elsevier ; Elsevier Inc.; Elsevier BV (ISSN 0022-2852)

Published

2008

Language

EN

Field

Chemistry (Physical Sciences)