FeH3 crystallizes in the cubic Pm-3n space group. Fe(1) is bonded to twelve equivalent H(1) atoms to form a mixture of edge and face-sharing FeH12 cuboctahedra. H(1) is bonded to four equivalent Fe(1) atoms to form a mixture of distorted corner and edge-sharing HFe4 tetrahedra.
FeH3 crystallizes in the cubic Pm-3n space group. Fe(1) is bonded to twelve equivalent H(1) atoms to form a mixture of edge and face-sharing FeH12 cuboctahedra. All Fe(1)-H(1) bond lengths are 1.84 Å. H(1) is bonded to four equivalent Fe(1) atoms to form a mixture of distorted corner and edge-sharing HFe4 tetrahedra.