Abstract
The nuclear hyperfine structure constants and the electric dipole moment of hydrogen fluoride, , in the ground-vibration and first excited rotation state have been measured in a molecular beam electric resonance experiment. The hfs constants are: kc/sec, kc/sec, kc/sec. The apparatus was calibrated by observing Stark transitions in the ground-vibration and first excited rotation state of carbonyl sulfide, , which gave , or D, by using D. An absolute measurement of the OCS electric dipole moment gave D. A digitally computed solution of the Stark effect with magnetic hyperfine structure was necessary to interpret the data. The theory and experiment are in good agreement over the range of electric-field strengths used in the experiment. The hfs constants are in excellent agreement with the averaged absolute values of these constants as measured in a molecular beam magnetic resonance experiment. The agreement has significance because of discrepancies between the results from the two resonance methods, for some other molecules, in previous experiments.
- Received 8 March 1963
DOI:https://doi.org/10.1103/PhysRev.131.659
©1963 American Physical Society