About non-existence of the molecular ion ${\mathbf{H}}_3^{++}$

H. Medel-Cobaxin, A. Alijah, A. V. Turbiner

It is shown that the molecular ion ${\mathrm{H}}_3^{++}$ does not exist in a form of the equilateral triangle. To this end, a compact variational method is presented which is based on a…