Hyperfine structure on the J=1→0, F1 = 3/2 transitions in CH3 79Br, CH3 81Br, and CD 3 79Br was measured with one-cavity and two-cavity beam maser spectrometers. The resolution for the measurements was approximately 2 kHz and most hyperfine structure components were completely resolved. Deuterium quadrupole coupling eQq12=178.5±3 kHz along the C-D bond and other parameters were obtained. In the theory section, formulas for the hyperfine interaction strengths with three equivalent spins are presented and reviewed. Deuterium quadrupole coupling in other C-D bond systems is discussed.
ASJC Scopus subject areas
- Physics and Astronomy(all)
- Physical and Theoretical Chemistry