NaEuYSbO6 crystallizes in the orthorhombic Pnnn space group. There are two inequivalent Na sites. In the first Na site, Na(1) is bonded in a rectangular see-saw-like geometry to four equivalent O(2) atoms. In the second Na site, Na(2) is bonded in a square co-planar geometry to four equivalent O(1) atoms. There are two inequivalent Eu sites. In the first Eu site, Eu(1) is bonded in a 8-coordinate geometry to four equivalent O(2) and four equivalent O(3) atoms. In the second Eu site, Eu(2) is bonded to four equivalent O(1), four equivalent O(2), and four equivalent O(3) atoms to form EuO12 cuboctahedra that share faces with four equivalent Y(1)O6 octahedra and faces with four equivalent Sb(1)O6 octahedra. Y(1) is bonded to two equivalent O(1), two equivalent O(2), and two equivalent O(3) atoms to form YO6 octahedra that share corners with six equivalent Sb(1)O6 octahedra and faces with two equivalent Eu(2)O12 cuboctahedra. The corner-sharing octahedral tilt angles range from 28-31°. Sb(1) is bonded to two equivalent O(1), two equivalent O(2), and two equivalent O(3) atoms to form SbO6 octahedra that share corners with six equivalent Y(1)O6 octahedra and faces with two equivalent Eu(2)O12 cuboctahedra. The corner-sharing octahedral tilt angles range from 28-31°. There are three inequivalent O sites. In the first O site, O(1) is bonded in a 4-coordinate geometry to one Na(2), one Eu(2), one Y(1), and one Sb(1) atom. In the second O site, O(2) is bonded in a 3-coordinate geometry to one Na(1), one Eu(1), one Eu(2), one Y(1), and one Sb(1) atom. In the third O site, O(3) is bonded in a 4-coordinate geometry to one Eu(1), one Eu(2), one Y(1), and one Sb(1) atom.
NaEuYSbO6 crystallizes in the orthorhombic Pnnn space group. There are two inequivalent Na sites. In the first Na site, Na(1) is bonded in a rectangular see-saw-like geometry to four equivalent O(2) atoms. All Na(1)-O(2) bond lengths are 2.39 Å. In the second Na site, Na(2) is bonded in a square co-planar geometry to four equivalent O(1) atoms. All Na(2)-O(1) bond lengths are 2.42 Å. There are two inequivalent Eu sites. In the first Eu site, Eu(1) is bonded in a 8-coordinate geometry to four equivalent O(2) and four equivalent O(3) atoms. All Eu(1)-O(2) bond lengths are 2.94 Å. All Eu(1)-O(3) bond lengths are 2.37 Å. In the second Eu site, Eu(2) is bonded to four equivalent O(1), four equivalent O(2), and four equivalent O(3) atoms to form EuO12 cuboctahedra that share faces with four equivalent Y(1)O6 octahedra and faces with four equivalent Sb(1)O6 octahedra. All Eu(2)-O(1) bond lengths are 2.77 Å. All Eu(2)-O(2) bond lengths are 2.98 Å. All Eu(2)-O(3) bond lengths are 2.80 Å. Y(1) is bonded to two equivalent O(1), two equivalent O(2), and two equivalent O(3) atoms to form YO6 octahedra that share corners with six equivalent Sb(1)O6 octahedra and faces with two equivalent Eu(2)O12 cuboctahedra. The corner-sharing octahedral tilt angles range from 28-31°. Both Y(1)-O(1) bond lengths are 2.25 Å. Both Y(1)-O(2) bond lengths are 2.22 Å. Both Y(1)-O(3) bond lengths are 2.24 Å. Sb(1) is bonded to two equivalent O(1), two equivalent O(2), and two equivalent O(3) atoms to form SbO6 octahedra that share corners with six equivalent Y(1)O6 octahedra and faces with two equivalent Eu(2)O12 cuboctahedra. The corner-sharing octahedral tilt angles range from 28-31°. Both Sb(1)-O(1) bond lengths are 2.00 Å. Both Sb(1)-O(2) bond lengths are 1.99 Å. Both Sb(1)-O(3) bond lengths are 2.02 Å. There are three inequivalent O sites. In the first O site, O(1) is bonded in a 4-coordinate geometry to one Na(2), one Eu(2), one Y(1), and one Sb(1) atom. In the second O site, O(2) is bonded in a 3-coordinate geometry to one Na(1), one Eu(1), one Eu(2), one Y(1), and one Sb(1) atom. In the third O site, O(3) is bonded in a 4-coordinate geometry to one Eu(1), one Eu(2), one Y(1), and one Sb(1) atom.