Atomic site preferences and its effect on magnetic structure in the intermetallic borides M2Fe(Ru0.8T0.2)5B2 (M=Sc, Ti, Zr; T=Ru, Rh, Ir)

► We identify the energetics dictating the site preference in a series of intermetallic borides. ► Establish substitution rules for use in future directed synthetic preparations. ► Identified changes in magnetic structure that accompany the site preference.