BaEuNbSbO6 is Orthorhombic Perovskite-derived structured and crystallizes in the triclinic P-1 space group. Ba(1) is bonded in a 9-coordinate geometry to one O(2), one O(3), one O(5), two equivalent O(1), two equivalent O(4), and two equivalent O(6) atoms. Eu(1) is bonded in a 8-coordinate geometry to one O(1), one O(4), one O(5), one O(6), two equivalent O(2), and two equivalent O(3) atoms. There are two inequivalent Nb sites. In the first Nb site, Nb(1) is bonded to two equivalent O(1), two equivalent O(3), and two equivalent O(6) atoms to form NbO6 octahedra that share corners with two equivalent Sb(2)O6 octahedra and corners with four equivalent Sb(1)O6 octahedra. The corner-sharing octahedral tilt angles range from 23-30°. In the second Nb site, Nb(2) is bonded to two equivalent O(2), two equivalent O(4), and two equivalent O(5) atoms to form NbO6 octahedra that share corners with two equivalent Sb(1)O6 octahedra and corners with four equivalent Sb(2)O6 octahedra. The corner-sharing octahedral tilt angles range from 21-28°. There are two inequivalent Sb sites. In the first Sb site, Sb(1) is bonded to two equivalent O(1), two equivalent O(3), and two equivalent O(5) atoms to form SbO6 octahedra that share corners with two equivalent Nb(2)O6 octahedra and corners with four equivalent Nb(1)O6 octahedra. The corner-sharing octahedral tilt angles range from 23-28°. In the second Sb site, Sb(2) is bonded to two equivalent O(2), two equivalent O(4), and two equivalent O(6) atoms to form SbO6 octahedra that share corners with two equivalent Nb(1)O6 octahedra and corners with four equivalent Nb(2)O6 octahedra. The corner-sharing octahedral tilt angles range from 21-30°. There are six inequivalent O sites. In the first O site, O(1) is bonded in a 5-coordinate geometry to two equivalent Ba(1), one Eu(1), one Nb(1), and one Sb(1) atom. In the second O site, O(2) is bonded in a 5-coordinate geometry to one Ba(1), two equivalent Eu(1), one Nb(2), and one Sb(2) atom. In the third O site, O(3) is bonded in a 5-coordinate geometry to one Ba(1), two equivalent Eu(1), one Nb(1), and one Sb(1) atom. In the fourth O site, O(4) is bonded in a 5-coordinate geometry to two equivalent Ba(1), one Eu(1), one Nb(2), and one Sb(2) atom. In the fifth O site, O(5) is bonded in a 4-coordinate geometry to one Ba(1), one Eu(1), one Nb(2), and one Sb(1) atom. In the sixth O site, O(6) is bonded in a 5-coordinate geometry to two equivalent Ba(1), one Eu(1), one Nb(1), and one Sb(2) atom.
BaEuNbSbO6 is Orthorhombic Perovskite-derived structured and crystallizes in the triclinic P-1 space group. Ba(1) is bonded in a 9-coordinate geometry to one O(2), one O(3), one O(5), two equivalent O(1), two equivalent O(4), and two equivalent O(6) atoms. The Ba(1)-O(2) bond length is 2.90 Å. The Ba(1)-O(3) bond length is 2.84 Å. The Ba(1)-O(5) bond length is 2.66 Å. There is one shorter (2.65 Å) and one longer (3.01 Å) Ba(1)-O(1) bond length. There is one shorter (2.68 Å) and one longer (2.96 Å) Ba(1)-O(4) bond length. There is one shorter (2.90 Å) and one longer (3.23 Å) Ba(1)-O(6) bond length. Eu(1) is bonded in a 8-coordinate geometry to one O(1), one O(4), one O(5), one O(6), two equivalent O(2), and two equivalent O(3) atoms. The Eu(1)-O(1) bond length is 2.86 Å. The Eu(1)-O(4) bond length is 2.86 Å. The Eu(1)-O(5) bond length is 2.57 Å. The Eu(1)-O(6) bond length is 2.50 Å. There is one shorter (2.57 Å) and one longer (2.95 Å) Eu(1)-O(2) bond length. There is one shorter (2.57 Å) and one longer (3.12 Å) Eu(1)-O(3) bond length. There are two inequivalent Nb sites. In the first Nb site, Nb(1) is bonded to two equivalent O(1), two equivalent O(3), and two equivalent O(6) atoms to form NbO6 octahedra that share corners with two equivalent Sb(2)O6 octahedra and corners with four equivalent Sb(1)O6 octahedra. The corner-sharing octahedral tilt angles range from 23-30°. Both Nb(1)-O(1) bond lengths are 2.02 Å. Both Nb(1)-O(3) bond lengths are 2.05 Å. Both Nb(1)-O(6) bond lengths are 2.05 Å. In the second Nb site, Nb(2) is bonded to two equivalent O(2), two equivalent O(4), and two equivalent O(5) atoms to form NbO6 octahedra that share corners with two equivalent Sb(1)O6 octahedra and corners with four equivalent Sb(2)O6 octahedra. The corner-sharing octahedral tilt angles range from 21-28°. Both Nb(2)-O(2) bond lengths are 2.05 Å. Both Nb(2)-O(4) bond lengths are 2.02 Å. Both Nb(2)-O(5) bond lengths are 2.03 Å. There are two inequivalent Sb sites. In the first Sb site, Sb(1) is bonded to two equivalent O(1), two equivalent O(3), and two equivalent O(5) atoms to form SbO6 octahedra that share corners with two equivalent Nb(2)O6 octahedra and corners with four equivalent Nb(1)O6 octahedra. The corner-sharing octahedral tilt angles range from 23-28°. Both Sb(1)-O(1) bond lengths are 2.29 Å. Both Sb(1)-O(3) bond lengths are 2.32 Å. Both Sb(1)-O(5) bond lengths are 2.29 Å. In the second Sb site, Sb(2) is bonded to two equivalent O(2), two equivalent O(4), and two equivalent O(6) atoms to form SbO6 octahedra that share corners with two equivalent Nb(1)O6 octahedra and corners with four equivalent Nb(2)O6 octahedra. The corner-sharing octahedral tilt angles range from 21-30°. Both Sb(2)-O(2) bond lengths are 2.32 Å. Both Sb(2)-O(4) bond lengths are 2.27 Å. Both Sb(2)-O(6) bond lengths are 2.32 Å. There are six inequivalent O sites. In the first O site, O(1) is bonded in a 5-coordinate geometry to two equivalent Ba(1), one Eu(1), one Nb(1), and one Sb(1) atom. In the second O site, O(2) is bonded in a 5-coordinate geometry to one Ba(1), two equivalent Eu(1), one Nb(2), and one Sb(2) atom. In the third O site, O(3) is bonded in a 5-coordinate geometry to one Ba(1), two equivalent Eu(1), one Nb(1), and one Sb(1) atom. In the fourth O site, O(4) is bonded in a 5-coordinate geometry to two equivalent Ba(1), one Eu(1), one Nb(2), and one Sb(2) atom. In the fifth O site, O(5) is bonded in a 4-coordinate geometry to one Ba(1), one Eu(1), one Nb(2), and one Sb(1) atom. In the sixth O site, O(6) is bonded in a 5-coordinate geometry to two equivalent Ba(1), one Eu(1), one Nb(1), and one Sb(2) atom.