title: The nu(2), nu(4) + nu(5), nu(6) + nu(9), and nu(8) Band System in 1,1,1-Trifluoroethane.
abstract: High-resolution FTIR spectra of 1,1,1-trifluoroethane (HFC-143a) have been recorded in the region from 1370 to 1470 cm(-1) with an unapodized resolution of 0.0016 cm(-1) at room temperature and of 0.004 cm(-1) at 183 and 100 K. The two main infrared active bands of A(1) symmetry have been shown to be nu(2) at 1407.5 cm(-1) and nu(4) + nu(5) at 1440.5 cm(-1). With the aid of Raman spectra, the two infrared inactive bands of E symmetry in this spectra region have been shown to be nu(8) at 1457.5 cm(-1) and nu(6) + nu(9) at 1446.2 cm(-1). The nu(2) band was analyzed as an isolated band, whereas the nu(4) + nu(5) band was analyzed as part of the triad nu(4) + nu(5), nu(6) + nu(9), and nu(8). Copyright 2000 Academic Press.
authors.affiliation: Department of Physics and Applied Physics, University of Strathclyde, John Anderson Building, Glasgow, G4 0NG, United Kingdom
authors.initials: G
authors.lastname: Duxbury
authors.initials: MJ
authors.lastname: McPhail
authors.initials: KM
authors.lastname: Smith
authors.initials: G
authors.lastname: Nivellini
authors.initials: F
authors.lastname: Tullini
authors.initials: A
authors.lastname: Celli