From the post "Hydrogen, And Everyone Has His Spins" dated 10 Jun 2014, the calculated distance between the two positive nuclei is,
rpp=3.20e-18m
If the formula,
fres=0.122cBL
also applies with BL=rpp then,
fres=0.122c3.20∗10−18=1.142958746125∗1025
fres1022=1.1429587∗10251022=1142.959Hz
Given that a frequency at integer divisor lower than fres will also produce resonance, then 1142.959 Hz will cause all the hydrogen molecules to line up and freeze into a solid.
Note:
If more figures are allowed for rpp=3.20382∗10−18 then,
fres=1.141596∗1025 or fres1022=1141.596Hz