title: Far-infrared emission spectra of selected gas-phase PAHs: spectroscopic fingerprints.
abstract: The emission spectra of the gaseous polycyclic aromatic hydrocarbons (PAHs) naphthalene, chrysene, and pyrene were recorded in the far-infrared (far-IR) region. The vibrational bands that lie in the far IR are unique for each PAH molecule and allow discrimination among the three PAH molecules. The far-IR PAH spectra, therefore, may prove useful in the assignment of unidentified spectral features from astronomical objects.
authors.affiliation: Centre for Molecular Beams and Laser Chemistry, Department of Chemistry, University of Waterloo, Waterloo, Ontario, Canada N2L 3G1.
authors.forename: K
authors.initials: K
authors.lastname: Zhang
authors.forename: B
authors.initials: B
authors.lastname: Guo
authors.forename: P
authors.initials: P
authors.lastname: Colarusso
authors.forename: P F
authors.initials: PF
authors.lastname: Bernath
mesh_terms: D055580:Astronomical Phenomena; D001256:Astronomy; D002911:Chrysenes / Q000737:chemistry*; D005118:Extraterrestrial Environment; D009281:Naphthalenes / Q000737:chemistry*; D011721:Pyrenes / Q000737:chemistry*; D013057:Spectrum Analysis
chemical_list: D002911:Chrysenes; D009281:Naphthalenes; D011721:Pyrenes; C031180:chrysene; C031721:naphthalene; C030984:pyrene