2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/229860The mα^6(m/M) order corrections to the hyperfine splitting in the H_2^+ ion are calculated. That allows to reduce uncertainty in the frequency intervals between hyperfine sublevels of a given rovibrational state to about 10 ppm. Results are in good agreement with the high precision experiment carried out by Jefferts in 1969.13 pages, 2 figures, 4 tablesAtomic Physicstext