Fe2ZnO5 crystallizes in the orthorhombic Pmmn space group. Fe(1) is bonded to one O(1), one O(3), and three equivalent O(2) atoms to form a mixture of edge and corner-sharing FeO5 trigonal bipyramids. Zn(1) is bonded in a 6-coordinate geometry to two equivalent O(1) and four equivalent O(3) atoms. There are three inequivalent O sites. In the first O site, O(1) is bonded to two equivalent Fe(1) and two equivalent Zn(1) atoms to form corner-sharing OZn2Fe2 tetrahedra. In the second O site, O(2) is bonded in a distorted trigonal non-coplanar geometry to three equivalent Fe(1) atoms. In the third O site, O(3) is bonded in a distorted trigonal planar geometry to one Fe(1) and two equivalent Zn(1) atoms.
Fe2ZnO5 crystallizes in the orthorhombic Pmmn space group. Fe(1) is bonded to one O(1), one O(3), and three equivalent O(2) atoms to form a mixture of edge and corner-sharing FeO5 trigonal bipyramids. The Fe(1)-O(1) bond length is 1.94 Å. The Fe(1)-O(3) bond length is 1.87 Å. There are two shorter (1.95 Å) and one longer (2.00 Å) Fe(1)-O(2) bond length. Zn(1) is bonded in a 6-coordinate geometry to two equivalent O(1) and four equivalent O(3) atoms. Both Zn(1)-O(1) bond lengths are 2.23 Å. All Zn(1)-O(3) bond lengths are 2.19 Å. There are three inequivalent O sites. In the first O site, O(1) is bonded to two equivalent Fe(1) and two equivalent Zn(1) atoms to form corner-sharing OZn2Fe2 tetrahedra. In the second O site, O(2) is bonded in a distorted trigonal non-coplanar geometry to three equivalent Fe(1) atoms. In the third O site, O(3) is bonded in a distorted trigonal planar geometry to one Fe(1) and two equivalent Zn(1) atoms.