title: FT Infrared Spectra of FCN from 1200 to 1800 cm(-1) and from 2800 to 7000 cm(-1) and Global Rovibrational Analysis of the Main Isotopomers.
abstract: We measured the FT spectrum of natural FCN from 1200 to 1800 cm(-1) and from 2800 to 7000 cm(-1) with a near Doppler resolution and a line-position accuracy between 1 and 8 x 10(-4) cm(-1). Lines were assigned to 91 different bands (75 of (19)F(12)C(14)N, 11 of (19)F(13)C(14)N, and 5 of (19)F(12)C(15)N), of which no more than five had been previously reported at lower resolution. From band-by-band analyses we deduced effective state parameters. As those results complete the study of the Fourier transform spectra of natural cyanogen fluoride from 1200 to 7000 cm(-1), global rovibrational analyses of (19)F(12)C(14)N, (19)F(13)C(14)N, and (19)F(12)C(15)N have been performed on the basis of all the available experimental data about their rovibrational energies. We have so determined sets of about 100 molecular parameters for each isotopomer, and a statistical agreement was obtained. A labeling of the vibrational states is proposed on the basis of the eigenvector coefficients. Copyright 2000 Academic Press.
authors.affiliation: Institut d'Astrophysique-, Université de Liège, Liège, B-4000, Belgium
authors.initials: A
authors.lastname: Farkhsi
authors.initials: H
authors.lastname: Bredohl
authors.initials: I
authors.lastname: Dubois
authors.initials: F
authors.lastname: Remy
authors.initials: A
authors.lastname: Fayt