A. Carrington et al., NUCLEAR HYPERFINE-STRUCTURE IN THE ELECTRONIC MILLIMETER-WAVE SPECTRUM OF H-2(+), Chemical physics letters, 206(1-4), 1993, pp. 77-82
The 2psigma(u) v=0, N=2-1ssigma(g) v=18, N=3 transition in H-2+ has be
en observed at 156632.8 MHz. This transition shows a characteristic st
ructure which we assign in terms of hyperfine, fine and electronic g/u
symmetry-breaking effects.