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Analysis of the High-Resolution Infrared Spectrum of the PHD2 Molecule: ν1 and 2ν1 Bands

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Abstract

The results of investigation into the infrared spectra of the PHD2 molecule including the ν1 fundamental band centered at 2324.005 cm–1 (with a resolution of 4.2·10–3 cm–1) and the first 2ν1 valence overtone centered at 4563.634 cm–1 (with a resolution of 8.8·10–3 cm–1) are given in the present paper. Based on an analysis of the results obtained, 1340 and 1020 lines are referred to the ν1 and 2ν1 bands, respectively. This data are used to calculate 316 and 248 vibrational-rotational energies of the (100000) and (200000) excited vibrational states, respectively. Since both bands can be considered as isolated, we take advantage of the Watson Hamiltonian (the reduction A in the I r representation) to describe their rotational structure. The calculated spectroscopic parameters of the examined states of the PHD2 molecule correlate well with each other and with the corresponding parameters of the ground vibrational state.

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Authors and Affiliations

  1. Tomsk State University, Russia

    G. A. Onopenko

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  1. G. A. Onopenko
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Onopenko, G.A. Analysis of the High-Resolution Infrared Spectrum of the PHD2 Molecule: ν1 and 2ν1 Bands. Russian Physics Journal 45, 341–345 (2002). https://doi.org/10.1023/A:1020518821605

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  • DOI: https://doi.org/10.1023/A:1020518821605

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