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Title: Rovibrational Analysis of ν2 and 2ν5 Bands of DCOOH by High Resolution FTIR Spectroscopy
Authors: Tan, T.L.
Goh, K.L.
Ong, P.P. 
Teo, H.H.
Issue Date: Dec-1999
Citation: Tan, T.L.,Goh, K.L.,Ong, P.P.,Teo, H.H. (1999-12). Rovibrational Analysis of ν2 and 2ν5 Bands of DCOOH by High Resolution FTIR Spectroscopy. Journal of Molecular Spectroscopy 198 (2) : 387-392. ScholarBank@NUS Repository.
Abstract: The infrared absorption spectrum of the ν2 band of deuterated formic acid (DCOOH) was recorded using a Bomem DA3.002 Fourier transform spectrometer in the wavenumber region 2130-2300 cm-1 with an apodized resolution of 0.004 cm-1. A total of 1024 transitions were assigned to this band which is hybrid type A and B, centered at 2219.6896 ± 0.0002 cm-1. As expected, the ν2 band is coupled to 2ν5 by a c-type Coriolis interaction. Both perturbed and unperturbed transitions were assigned and fitted to give seven rovibrational constants for the ν2 = 1 state with a standard deviation of 0.00094 cm-1 using Watson's A-reduced Hamiltonian in the Ir representation. A c-type Coriolis interaction term between ν2 and 2ν5 was derived from the rovibrational analysis. The ratio of the transition moments, |μb/μa|, was found to be 1.42 ± 0.10 for the hybrid band. © 1999 Academic Press.
Source Title: Journal of Molecular Spectroscopy
ISSN: 00222852
Appears in Collections:Staff Publications

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