MgEuFeO3 crystallizes in the triclinic P1 space group. Mg(1) is bonded in a distorted trigonal non-coplanar geometry to one O(1), one O(2), and one O(3) atom. Eu(1) is bonded in a 3-coordinate geometry to one O(1), one O(2), and one O(3) atom. Fe(1) is bonded to two equivalent O(1), two equivalent O(2), and two equivalent O(3) atoms to form distorted corner-sharing FeO6 octahedra. The corner-sharing octahedral tilt angles are 7°. There are three inequivalent O sites. In the first O site, O(1) is bonded in a 4-coordinate geometry to one Mg(1), one Eu(1), and two equivalent Fe(1) atoms. In the second O site, O(2) is bonded in a 4-coordinate geometry to one Mg(1), one Eu(1), and two equivalent Fe(1) atoms. In the third O site, O(3) is bonded in a 4-coordinate geometry to one Mg(1), one Eu(1), and two equivalent Fe(1) atoms.
MgEuFeO3 crystallizes in the triclinic P1 space group. Mg(1) is bonded in a distorted trigonal non-coplanar geometry to one O(1), one O(2), and one O(3) atom. The Mg(1)-O(1) bond length is 1.93 Å. The Mg(1)-O(2) bond length is 1.92 Å. The Mg(1)-O(3) bond length is 1.93 Å. Eu(1) is bonded in a 3-coordinate geometry to one O(1), one O(2), and one O(3) atom. The Eu(1)-O(1) bond length is 2.34 Å. The Eu(1)-O(2) bond length is 2.34 Å. The Eu(1)-O(3) bond length is 2.34 Å. Fe(1) is bonded to two equivalent O(1), two equivalent O(2), and two equivalent O(3) atoms to form distorted corner-sharing FeO6 octahedra. The corner-sharing octahedral tilt angles are 7°. There is one shorter (2.11 Å) and one longer (2.34 Å) Fe(1)-O(1) bond length. There is one shorter (2.13 Å) and one longer (2.37 Å) Fe(1)-O(2) bond length. There is one shorter (2.13 Å) and one longer (2.36 Å) Fe(1)-O(3) bond length. There are three inequivalent O sites. In the first O site, O(1) is bonded in a 4-coordinate geometry to one Mg(1), one Eu(1), and two equivalent Fe(1) atoms. In the second O site, O(2) is bonded in a 4-coordinate geometry to one Mg(1), one Eu(1), and two equivalent Fe(1) atoms. In the third O site, O(3) is bonded in a 4-coordinate geometry to one Mg(1), one Eu(1), and two equivalent Fe(1) atoms.