Results for “B-Fe-W”

DOE OSTI2020

Materials Data on Fe(BW)2 by Materials Project

Fe(WB)2 crystallizes in the tetragonal P4/mbm space group. The structure is three-dimensional. W2+ is bonded in a distorted hexagonal planar geometry to six equivalent B3- atoms. There are two shorter (2.32 Å) and four longer (2.35 Å) W–B bond lengths. Fe2+ is bonded in a square co-planar geometry to four equivalent B3- atoms. All Fe–B bond lengths are 2.28 Å. B3- is bonded in a 9-coordinate geometry to six equivalent W2+, two equivalent Fe2+, and one B3- atom. The B–B bond length is 1.86 Å.

36 MATERIALS SCIENCE↗

DOE OSTI2020

Materials Data on Fe22B6W by Materials Project

WFe22B6 crystallizes in the cubic F-43m space group. The structure is three-dimensional. W is bonded in a distorted tetrahedral geometry to four equivalent Fe atoms. All W–Fe bond lengths are 2.45 Å. There are five inequivalent Fe sites. In the first Fe site, Fe is bonded in a cuboctahedral geometry to twelve equivalent Fe atoms. All Fe–Fe bond lengths are 2.57 Å. In the second Fe site, Fe is bonded in a distorted bent 150 degrees geometry to one Fe and two equivalent B atoms. Both Fe–B bond lengths are 2.13 Å. In the third Fe site, Fe is bonded in a distorted trigonal non-coplanar geometry to one Fe and three equivalent B atoms. The Fe–Fe bond length is 2.40 Å. All Fe–B bond lengths are 2.11 Å. In the fourth Fe site, Fe is bonded to one W and three equivalent B atoms to form corner-sharing FeB3W tetrahedra. All Fe–B bond lengths are 2.09 Å. In the fifth Fe site, Fe is bonded in a distorted tetrahedral geometry to four equivalent Fe atoms. B is bonded in a 8-coordinate geometry to eight Fe atoms.

36 MATERIALS SCIENCE↗