Paramagnetic Resonance Absorption in Bromine and Chlorine

Abstract

The microwave Zeeman spectra of atomic chlorine and bromine have been observed. From measurements on several lines in the spectrum of the 2P3 2 ground level, the electronic g-factors are found to be gJ(Br) = 1.333921 ± (5 × 10-6) gJ(Cl) = 1 3339275 ± (3 × 10-6). An estimate of relativistic and diamagnetic corrections to the g-factors, based on self-consistent field wave functions, is in satisfactory agreement with the experimental results. A comparison is made with the g-factors of fluorine and iodine.