Knowledge Bank

The molecular beam electric resonance spectra of lithium hydride and lithium deuteride have been measured. The principal transition studied is J=1, $MJ=0\to J=1$. $MJ=\pm 1$ in a strong electric field. The derived molecular parameters are presently: [FIGURE] Single lines can be measured with a precision of approximately 100 cycles/second. Therefore the values of the constants are capable of being further refined with our present spectral data. A discussion of the chemical significance of the experimental molecular parameters, together with a comparison with those obtained from \emph{ab initio} calculations, will be presented.