NaEuHf2O6 is Orthorhombic Perovskite-derived structured and crystallizes in the orthorhombic Pmn2_1 space group. Na(1) is bonded in a 8-coordinate geometry to one O(1), one O(2), two equivalent O(4), and four equivalent O(3) atoms. Eu(1) is bonded in a 8-coordinate geometry to one O(1), one O(2), two equivalent O(3), and four equivalent O(4) atoms. Hf(1) is bonded to one O(1), one O(2), two equivalent O(3), and two equivalent O(4) atoms to form corner-sharing HfO6 octahedra. The corner-sharing octahedral tilt angles range from 26-37°. There are four inequivalent O sites. In the first O site, O(1) is bonded to one Na(1), one Eu(1), and two equivalent Hf(1) atoms to form distorted corner-sharing ONaEuHf2 tetrahedra. In the second O site, O(2) is bonded to one Na(1), one Eu(1), and two equivalent Hf(1) atoms to form distorted corner-sharing ONaEuHf2 tetrahedra. In the third O site, O(3) is bonded in a 5-coordinate geometry to two equivalent Na(1), one Eu(1), and two equivalent Hf(1) atoms. In the fourth O site, O(4) is bonded in a 5-coordinate geometry to one Na(1), two equivalent Eu(1), and two equivalent Hf(1) atoms.
NaEuHf2O6 is Orthorhombic Perovskite-derived structured and crystallizes in the orthorhombic Pmn2_1 space group. Na(1) is bonded in a 8-coordinate geometry to one O(1), one O(2), two equivalent O(4), and four equivalent O(3) atoms. The Na(1)-O(1) bond length is 2.44 Å. The Na(1)-O(2) bond length is 2.57 Å. Both Na(1)-O(4) bond lengths are 2.46 Å. There are two shorter (2.75 Å) and two longer (2.85 Å) Na(1)-O(3) bond lengths. Eu(1) is bonded in a 8-coordinate geometry to one O(1), one O(2), two equivalent O(3), and four equivalent O(4) atoms. The Eu(1)-O(1) bond length is 2.37 Å. The Eu(1)-O(2) bond length is 2.29 Å. Both Eu(1)-O(3) bond lengths are 2.34 Å. There are two shorter (2.59 Å) and two longer (2.81 Å) Eu(1)-O(4) bond lengths. Hf(1) is bonded to one O(1), one O(2), two equivalent O(3), and two equivalent O(4) atoms to form corner-sharing HfO6 octahedra. The corner-sharing octahedral tilt angles range from 26-37°. The Hf(1)-O(1) bond length is 2.06 Å. The Hf(1)-O(2) bond length is 2.12 Å. Both Hf(1)-O(3) bond lengths are 2.09 Å. There is one shorter (2.09 Å) and one longer (2.11 Å) Hf(1)-O(4) bond length. There are four inequivalent O sites. In the first O site, O(1) is bonded to one Na(1), one Eu(1), and two equivalent Hf(1) atoms to form distorted corner-sharing ONaEuHf2 tetrahedra. In the second O site, O(2) is bonded to one Na(1), one Eu(1), and two equivalent Hf(1) atoms to form distorted corner-sharing ONaEuHf2 tetrahedra. In the third O site, O(3) is bonded in a 5-coordinate geometry to two equivalent Na(1), one Eu(1), and two equivalent Hf(1) atoms. In the fourth O site, O(4) is bonded in a 5-coordinate geometry to one Na(1), two equivalent Eu(1), and two equivalent Hf(1) atoms.