l-resonance perturbations in infrared perpendicular bands
作者： G.J. Cartwright , I.M. Mills
DOI: 10.1016/0022-2852(70)90024-X
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摘要: Abstract The effects of l-type resonance on rovibrational bands in infrared spectra are reviewed. Observed compared with computer-simulated obtained by solving the Hamiltonian matrix numerically and calculating true (perturbed) wavenumber intensity each line band. most obvious shown to result from perturbations rather than line-shifts; oblate symmetric tops Q branch structure near band center may show anomalies due l-resonance even at quite low resolution when accidental is not very exact. Numerical values l-doubling constants for several cyclopropane comparing observed contours about 0.2-cm −1 computed contours. Although determined great precision, sign unambiguously.
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