Radio-Frequency Spectrum of KBr by the Molecular-Beam Electric-Resonance Method

Abstract
The molecular‐beam electric‐resonance method has been used to observe the radio‐frequency spectra of 39K79Br and 39K81Br in the J = 1 rotational state and the υ = 0 , 1, and 2 vibrational levels. Analysis of the spectra has given dipole moments and hyperfine interaction constants of these molecules.