Stark Effect at 0.93, 1.18, and 1.5 Millimeters Wavelength: DCl, DBr, and DI

Publisher Website
Google Scholar
Abstract
Observations of the Stark effect in the microwave rotational spectra of light molecules have been extended into the sub-millimeter wave region. The Stark shifts of the J=0→1 transition of deuterium chloride at 0.93 mm wavelength, and of deuterium bromide at 1.18 mm have been measured. Values of the molecular electric dipole moment μ, obtained from analysis of the data, are found to be 1.12±0.04 debye for DCl and 0.83±0.02 debye for DBr. An error in the calculation of μ for DI, from measurements at 1.5 mm previously reported, is corrected, and μ for DI is found to be 0.445±0.02 debye.