title: High-Resolution FTIR Spectrum of the nu5 Band of HCOOD.
abstract: The high-resolution Fourier transform infrared spectrum of HCOOD has been measured in the nu5 region between 1120 and 1220 cm-1 with a resolution of 0.004 cm-1. As expected for an in-plane vibrational fundamental mode, the nu5 band is a hybrid band consisting of both a-type and b-type transitions. Using the Watson's A-reduced Hamiltonian in the Ir representation, 1943 infrared transitions have been assigned and fitted to give 12 rovibrational constants for the v5 = 1 state. The nu5 band is primarily A type with a band center at 1177.09378 +/- 0.00002 cm-1. It is found that nu5 is slightly perturbed by the nearby 2nu7. About 90 perturbed transitions were identified. Copyright 1998 Academic Press.
authors.affiliation: Faculty of Science, National University of Singapore, Lower Kent Ridge Road, 119260, Singapore
authors.initials: KL
authors.lastname: Goh
authors.initials: PP
authors.lastname: Ong
authors.initials: TL
authors.lastname: Tan
authors.initials: HH
authors.lastname: Teo
authors.initials: WF
authors.lastname: Wang