title: The ground state rotational spectrum of the fluorosulfate radical.
abstract: The rotational spectra of the fluorosulfate (FSO(3)) molecular radical in its vibronic ground state were measured in the millimeter-wave region and analyzed in detail using the matrix elements of the rotational, fine, and hyperfine Hamiltonian terms. The analysis of the assigned transition frequencies made it possible to derive very precise values of the rotational, centrifugal distortion and fine structure constants and to confirm the C(3v) molecular symmetry of the vibronic ground state unambiguously. In addition, an effective parameter of the "A(1)-A(2) splitting" was determined. The rotational transitions of the FSO(3) free radical were observed, identified, and analyzed for the first time.
authors.affiliation: Department of Analytical Chemistry, Institute of Chemical Technology, 166 28 Prague 6, Czech Republic. lucie.kolesnikova@vscht.cz
authors.forename: Lucie
authors.initials: L
authors.lastname: Kolesniková
authors.forename: Juraj
authors.initials: J
authors.lastname: Varga
authors.forename: Lucie Nová
authors.initials: LN
authors.lastname: Stríteská
authors.forename: Helmut
authors.initials: H
authors.lastname: Beckers
authors.forename: Helge
authors.initials: H
authors.lastname: Willner
authors.forename: Friedhelm
authors.initials: F
authors.lastname: Aubke
authors.forename: Stepán
authors.initials: S
authors.lastname: Urban