Quantum mechanical calculations have been carried through for the normal state of the lithium hydride molecule. Two cases were considered. First, the radial eigen-function of the valence electron of lithium was taken as nodeless as given by Slater. Second, the function derived by Guillemin and Zener with a node at $0.18a_0$ was used. In both cases the $K$ electrons of lithium were neglected. The results are as follows:

• Received 29 February 1932

DOI:https://doi.org/10.1103/PhysRev.40.340