Please use this identifier to cite or link to this item: https://doi.org/10.1006/jmsp.2000.8189
Title: High-resolution Fourier transform infrared spectrum of the ν12 fundamental band of ethylene (C2H4)
Authors: Tan, T.L.
Lau, S.Y.
Ong, P.P. 
Goh, K.L.
Teo, H.H.
Issue Date: Oct-2000
Citation: Tan, T.L., Lau, S.Y., Ong, P.P., Goh, K.L., Teo, H.H. (2000-10). High-resolution Fourier transform infrared spectrum of the ν12 fundamental band of ethylene (C2H4). Journal of molecular spectroscopy 203 (2) : 310-313. ScholarBank@NUS Repository. https://doi.org/10.1006/jmsp.2000.8189
Abstract: The infrared spectrum of the ν12 fundamental band of ethylene (C2H4) has been measured with an unapodized resolution of 0.004 cm-1 in the frequency range of 1380-1500 cm-1 using the Fourier transform technique. By assigning and fitting a total of 1387 infrared transitions using a Watson's A-reduced Hamiltonian in the I′ representation, rovibrational constants for the upper state (ν12 = 1) up to five quartic and three sextic centrifugal distortions terms were derived. They represent the most accurate constants for the band so far. The rms deviation of the fit was 0.00033 cm-1. The A-type ν12 band with a band center at 1442.44299±0.00003 cm-1 was found to be relatively free from local frequency perturbations. The inertial defect Δ12 was found to be 0.24201±0.00002 u angstrom2.
Source Title: Journal of molecular spectroscopy
URI: http://scholarbank.nus.edu.sg/handle/10635/96816
ISSN: 00222852
DOI: 10.1006/jmsp.2000.8189
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