BaEuCeWO6 is Orthorhombic Perovskite-derived structured and crystallizes in the orthorhombic P222 space group. There are four inequivalent Ba sites. In the first Ba site, Ba(1) is bonded to four equivalent O(1), four equivalent O(2), and four equivalent O(3) atoms to form BaO12 cuboctahedra that share faces with four equivalent Ce(1)O6 octahedra and faces with four equivalent W(1)O6 octahedra. In the second Ba site, Ba(2) is bonded to four equivalent O(4), four equivalent O(5), and four equivalent O(6) atoms to form BaO12 cuboctahedra that share faces with four equivalent Ce(1)O6 octahedra and faces with four equivalent W(1)O6 octahedra. In the third Ba site, Ba(3) is bonded in a distorted square co-planar geometry to four equivalent O(2) and four equivalent O(6) atoms. In the fourth Ba site, Ba(4) is bonded in a distorted square co-planar geometry to four equivalent O(1) and four equivalent O(6) 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(1) and four equivalent O(5) atoms. In the second Eu site, Eu(2) is bonded in a distorted square co-planar geometry to four equivalent O(3) and four equivalent O(4) atoms. In the third Eu site, Eu(3) is bonded in a distorted square co-planar geometry to four equivalent O(2) and four equivalent O(4) atoms. In the fourth Eu site, Eu(4) is bonded in a distorted square co-planar geometry to four equivalent O(3) and four equivalent O(5) atoms. Ce(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 CeO6 octahedra that share corners with six equivalent W(1)O6 octahedra,  a faceface with one Ba(1)O12 cuboctahedra, and  a faceface with one Ba(2)O12 cuboctahedra. The corner-sharing octahedral tilt angles range from 23-26°. W(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 WO6 octahedra that share corners with six equivalent Ce(1)O6 octahedra,  a faceface with one Ba(1)O12 cuboctahedra, and  a faceface with one Ba(2)O12 cuboctahedra. The corner-sharing octahedral tilt angles range from 23-26°. There are six inequivalent O sites. In the first O site, O(5) is bonded in a 5-coordinate geometry to one Ba(2), one Eu(1), one Eu(4), one Ce(1), and one W(1) atom. In the second O site, O(6) is bonded in a 5-coordinate geometry to one Ba(2), one Ba(3), one Ba(4), one Ce(1), and one W(1) atom. In the third O site, O(1) is bonded in a 5-coordinate geometry to one Ba(1), one Ba(4), one Eu(1), one Ce(1), and one W(1) atom. In the fourth O site, O(2) is bonded in a 5-coordinate geometry to one Ba(1), one Ba(3), one Eu(3), one Ce(1), and one W(1) atom. In the fifth O site, O(3) is bonded in a 5-coordinate geometry to one Ba(1), one Eu(2), one Eu(4), one Ce(1), and one W(1) atom. In the sixth O site, O(4) is bonded in a 5-coordinate geometry to one Ba(2), one Eu(2), one Eu(3), one Ce(1), and one W(1) atom.
BaEuCeWO6 is Orthorhombic Perovskite-derived structured and crystallizes in the orthorhombic P222 space group. There are four inequivalent Ba sites. In the first Ba site, Ba(1) is bonded to four equivalent O(1), four equivalent O(2), and four equivalent O(3) atoms to form BaO12 cuboctahedra that share faces with four equivalent Ce(1)O6 octahedra and faces with four equivalent W(1)O6 octahedra. All Ba(1)-O(1) bond lengths are 3.11 Å. All Ba(1)-O(2) bond lengths are 3.12 Å. All Ba(1)-O(3) bond lengths are 3.13 Å. In the second Ba site, Ba(2) is bonded to four equivalent O(4), four equivalent O(5), and four equivalent O(6) atoms to form BaO12 cuboctahedra that share faces with four equivalent Ce(1)O6 octahedra and faces with four equivalent W(1)O6 octahedra. All Ba(2)-O(4) bond lengths are 3.12 Å. All Ba(2)-O(5) bond lengths are 3.13 Å. All Ba(2)-O(6) bond lengths are 3.11 Å. In the third Ba site, Ba(3) is bonded in a distorted square co-planar geometry to four equivalent O(2) and four equivalent O(6) atoms. All Ba(3)-O(2) bond lengths are 3.19 Å. All Ba(3)-O(6) bond lengths are 2.67 Å. In the fourth Ba site, Ba(4) is bonded in a distorted square co-planar geometry to four equivalent O(1) and four equivalent O(6) atoms. All Ba(4)-O(1) bond lengths are 2.67 Å. All Ba(4)-O(6) bond lengths are 3.19 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(1) and four equivalent O(5) atoms. All Eu(1)-O(1) bond lengths are 3.17 Å. All Eu(1)-O(5) bond lengths are 2.62 Å. In the second Eu site, Eu(2) is bonded in a distorted square co-planar geometry to four equivalent O(3) and four equivalent O(4) atoms. All Eu(2)-O(3) bond lengths are 3.19 Å. All Eu(2)-O(4) bond lengths are 2.61 Å. In the third Eu site, Eu(3) is bonded in a distorted square co-planar geometry to four equivalent O(2) and four equivalent O(4) atoms. All Eu(3)-O(2) bond lengths are 2.60 Å. All Eu(3)-O(4) bond lengths are 3.18 Å. In the fourth Eu site, Eu(4) is bonded in a distorted square co-planar geometry to four equivalent O(3) and four equivalent O(5) atoms. All Eu(4)-O(3) bond lengths are 2.62 Å. All Eu(4)-O(5) bond lengths are 3.18 Å. Ce(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 CeO6 octahedra that share corners with six equivalent W(1)O6 octahedra,  a faceface with one Ba(1)O12 cuboctahedra, and  a faceface with one Ba(2)O12 cuboctahedra. The corner-sharing octahedral tilt angles range from 23-26°. The Ce(1)-O(1) bond length is 2.36 Å. The Ce(1)-O(2) bond length is 2.41 Å. The Ce(1)-O(3) bond length is 2.36 Å. The Ce(1)-O(4) bond length is 2.37 Å. The Ce(1)-O(5) bond length is 2.39 Å. The Ce(1)-O(6) bond length is 2.37 Å. W(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 WO6 octahedra that share corners with six equivalent Ce(1)O6 octahedra,  a faceface with one Ba(1)O12 cuboctahedra, and  a faceface with one Ba(2)O12 cuboctahedra. The corner-sharing octahedral tilt angles range from 23-26°. The W(1)-O(1) bond length is 2.14 Å. The W(1)-O(2) bond length is 2.13 Å. The W(1)-O(3) bond length is 2.14 Å. The W(1)-O(4) bond length is 2.16 Å. The W(1)-O(5) bond length is 2.11 Å. The W(1)-O(6) bond length is 2.12 Å. There are six inequivalent O sites. In the first O site, O(5) is bonded in a 5-coordinate geometry to one Ba(2), one Eu(1), one Eu(4), one Ce(1), and one W(1) atom. In the second O site, O(6) is bonded in a 5-coordinate geometry to one Ba(2), one Ba(3), one Ba(4), one Ce(1), and one W(1) atom. In the third O site, O(1) is bonded in a 5-coordinate geometry to one Ba(1), one Ba(4), one Eu(1), one Ce(1), and one W(1) atom. In the fourth O site, O(2) is bonded in a 5-coordinate geometry to one Ba(1), one Ba(3), one Eu(3), one Ce(1), and one W(1) atom. In the fifth O site, O(3) is bonded in a 5-coordinate geometry to one Ba(1), one Eu(2), one Eu(4), one Ce(1), and one W(1) atom. In the sixth O site, O(4) is bonded in a 5-coordinate geometry to one Ba(2), one Eu(2), one Eu(3), one Ce(1), and one W(1) atom.