Gas-Phase Electron Resonance Spectra of SF and SeF

Abstract
The electron resonance spectra of the gaseous radicals SF and SeF have been detected and analyzed. The derivation of an effective Hamiltonian which operates in the rotational subspace of the ground vibronic state is described. Use of this Hamiltonian yields the rotational constants, the fine‐structure splittings, and the axial components of the 19F hyperfine interaction for both radicals.