SrEuBiSbO6 crystallizes in the orthorhombic P222 space group. There are four inequivalent Sr sites. In the first Sr site, Sr(1) is bonded in a distorted square co-planar geometry to four equivalent O(1) and four equivalent O(5) atoms. In the second Sr site, Sr(2) is bonded in a distorted square co-planar geometry to four equivalent O(2) and four equivalent O(6) atoms. In the third Sr site, Sr(3) is bonded in a distorted square co-planar geometry to four equivalent O(3) and four equivalent O(4) atoms. In the fourth Sr site, Sr(4) is bonded in a distorted square co-planar geometry to four equivalent O(3) and four equivalent O(5) atoms. There are four inequivalent Eu sites. In the first Eu site, Eu(1) is bonded in a distorted square co-planar geometry to four equivalent O(2) atoms. In the second Eu site, Eu(2) is bonded in a distorted square co-planar geometry to four equivalent O(1) atoms. In the third Eu site, Eu(3) is bonded in a q6 geometry to four equivalent O(1), four equivalent O(2), and four equivalent O(3) atoms. In the fourth Eu site, Eu(4) is bonded in a q6 geometry to four equivalent O(4), four equivalent O(5), and four equivalent O(6) atoms. Bi(1) is bonded to one O(1), one O(2), one O(3), one O(4), one O(5), and one O(6) atom to form BiO6 octahedra that share corners with six equivalent Sb(1)O6 octahedra. The corner-sharing octahedral tilt angles range from 27-29°. Sb(1) is bonded to one O(1), one O(2), one O(3), one O(4), one O(5), and one O(6) atom to form SbO6 octahedra that share corners with six equivalent Bi(1)O6 octahedra. The corner-sharing octahedral tilt angles range from 27-29°. There are six inequivalent O sites. In the first O site, O(5) is bonded in a 5-coordinate geometry to one Sr(1), one Sr(4), one Eu(4), one Bi(1), and one Sb(1) atom. In the second O site, O(6) is bonded in a 3-coordinate geometry to one Sr(2), one Eu(4), one Bi(1), and one Sb(1) atom. In the third O site, O(1) is bonded in a 5-coordinate geometry to one Sr(1), one Eu(2), one Eu(3), one Bi(1), and one Sb(1) atom. In the fourth O site, O(2) is bonded in a 5-coordinate geometry to one Sr(2), one Eu(1), one Eu(3), one Bi(1), and one Sb(1) atom. In the fifth O site, O(3) is bonded in a 5-coordinate geometry to one Sr(3), one Sr(4), one Eu(3), one Bi(1), and one Sb(1) atom. In the sixth O site, O(4) is bonded in a 3-coordinate geometry to one Sr(3), one Eu(4), one Bi(1), and one Sb(1) atom.
SrEuBiSbO6 crystallizes in the orthorhombic P222 space group. There are four inequivalent Sr sites. In the first Sr site, Sr(1) is bonded in a distorted square co-planar geometry to four equivalent O(1) and four equivalent O(5) atoms. All Sr(1)-O(1) bond lengths are 3.13 Å. All Sr(1)-O(5) bond lengths are 2.52 Å. In the second Sr site, Sr(2) is bonded in a distorted square co-planar geometry to four equivalent O(2) and four equivalent O(6) atoms. All Sr(2)-O(2) bond lengths are 3.13 Å. All Sr(2)-O(6) bond lengths are 2.52 Å. In the third Sr site, Sr(3) is bonded in a distorted square co-planar geometry to four equivalent O(3) and four equivalent O(4) atoms. All Sr(3)-O(3) bond lengths are 3.13 Å. All Sr(3)-O(4) bond lengths are 2.52 Å. In the fourth Sr site, Sr(4) is bonded in a distorted square co-planar geometry to four equivalent O(3) and four equivalent O(5) atoms. All Sr(4)-O(3) bond lengths are 2.52 Å. All Sr(4)-O(5) bond lengths are 3.12 Å. There are four inequivalent Eu sites. In the first Eu site, Eu(1) is bonded in a distorted square co-planar geometry to four equivalent O(2) atoms. All Eu(1)-O(2) bond lengths are 2.48 Å. In the second Eu site, Eu(2) is bonded in a distorted square co-planar geometry to four equivalent O(1) atoms. All Eu(2)-O(1) bond lengths are 2.48 Å. In the third Eu site, Eu(3) is bonded in a q6 geometry to four equivalent O(1), four equivalent O(2), and four equivalent O(3) atoms. All Eu(3)-O(1) bond lengths are 3.00 Å. All Eu(3)-O(2) bond lengths are 3.01 Å. All Eu(3)-O(3) bond lengths are 3.00 Å. In the fourth Eu site, Eu(4) is bonded in a q6 geometry to four equivalent O(4), four equivalent O(5), and four equivalent O(6) atoms. All Eu(4)-O(4) bond lengths are 3.01 Å. All Eu(4)-O(5) bond lengths are 3.00 Å. All Eu(4)-O(6) bond lengths are 3.02 Å. Bi(1) is bonded to one O(1), one O(2), one O(3), one O(4), one O(5), and one O(6) atom to form BiO6 octahedra that share corners with six equivalent Sb(1)O6 octahedra. The corner-sharing octahedral tilt angles range from 27-29°. The Bi(1)-O(1) bond length is 2.37 Å. The Bi(1)-O(2) bond length is 2.36 Å. The Bi(1)-O(3) bond length is 2.36 Å. The Bi(1)-O(4) bond length is 2.36 Å. The Bi(1)-O(5) bond length is 2.37 Å. The Bi(1)-O(6) bond length is 2.36 Å. Sb(1) is bonded to one O(1), one O(2), one O(3), one O(4), one O(5), and one O(6) atom to form SbO6 octahedra that share corners with six equivalent Bi(1)O6 octahedra. The corner-sharing octahedral tilt angles range from 27-29°. The Sb(1)-O(1) bond length is 2.03 Å. The Sb(1)-O(2) bond length is 2.03 Å. The Sb(1)-O(3) bond length is 2.02 Å. The Sb(1)-O(4) bond length is 2.03 Å. The Sb(1)-O(5) bond length is 2.03 Å. The Sb(1)-O(6) bond length is 2.02 Å. There are six inequivalent O sites. In the first O site, O(5) is bonded in a 5-coordinate geometry to one Sr(1), one Sr(4), one Eu(4), one Bi(1), and one Sb(1) atom. In the second O site, O(6) is bonded in a 3-coordinate geometry to one Sr(2), one Eu(4), one Bi(1), and one Sb(1) atom. In the third O site, O(1) is bonded in a 5-coordinate geometry to one Sr(1), one Eu(2), one Eu(3), one Bi(1), and one Sb(1) atom. In the fourth O site, O(2) is bonded in a 5-coordinate geometry to one Sr(2), one Eu(1), one Eu(3), one Bi(1), and one Sb(1) atom. In the fifth O site, O(3) is bonded in a 5-coordinate geometry to one Sr(3), one Sr(4), one Eu(3), one Bi(1), and one Sb(1) atom. In the sixth O site, O(4) is bonded in a 3-coordinate geometry to one Sr(3), one Eu(4), one Bi(1), and one Sb(1) atom.