AB2_tI12_121_ab_i & a,c/a,x3,z3 --params=5.078,0.831626624655,0.16667,0.2 & I-42m D_{2d}^{11} #121 (abi) & tI12 & $C17$ & BFe2 & BFe2 & F. Wever and A. M\"{u}ller, Z. Anorg. Allg. Chem. 192, 317-336 (1930) 1.00000000000000 -2.53900000000000 2.53900000000000 2.11150000000000 2.53900000000000 -2.53900000000000 2.11150000000000 2.53900000000000 2.53900000000000 -2.11150000000000 B Fe 2 4 Direct 0.00000000000000 0.00000000000000 0.00000000000000 B (2a) 0.50000000000000 0.50000000000000 0.00000000000000 B (2b) 0.36667000000000 0.36667000000000 0.33334000000000 Fe (8i) 0.03333000000000 0.03333000000000 -0.33334000000000 Fe (8i) -0.36667000000000 -0.03333000000000 0.00000000000000 Fe (8i) -0.03333000000000 -0.36667000000000 0.00000000000000 Fe (8i)