One-to-Two Millimeter Wave Spectra of TCl and TBr

Abstract
The J=01 rotational transitions of TCl and TBr have been measured at 1.36-mm and 1.74-mm wavelengths, respectively. These measurements, with αe and D from infrared data, yield the following constants: For tritium chloride, For tritium bromide, From the TBr measurements and similar measurements on DBr made previously in this laboratory, the mass ratio mT(mD)=1.49747 was obtained.