SrTbEuCoO6 is Orthorhombic Perovskite-derived structured and 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 rectangular see-saw-like geometry to four equivalent O(5) atoms. In the second Sr site, Sr(2) is bonded in a distorted rectangular see-saw-like geometry to 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(4) atoms. In the fourth Sr site, Sr(4) is bonded in a distorted rectangular see-saw-like geometry to four equivalent O(2) atoms. Tb(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 TbO6 octahedra that share corners with six equivalent Co(1)O6 octahedra,  a faceface with one Eu(3)O12 cuboctahedra, and  a faceface with one Eu(4)O12 cuboctahedra. The corner-sharing octahedral tilt angles range from 12-16°. There are four inequivalent Eu sites. In the first Eu site, Eu(1) is bonded in a distorted rectangular see-saw-like geometry to four equivalent O(3) 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(1) and four equivalent O(6) atoms. In the third Eu site, Eu(3) 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 Tb(1)O6 octahedra and faces with four equivalent Co(1)O6 octahedra. In the fourth Eu site, Eu(4) is bonded to four equivalent O(4), four equivalent O(5), and four equivalent O(6) atoms to form distorted EuO12 cuboctahedra that share faces with four equivalent Tb(1)O6 octahedra and faces with four equivalent Co(1)O6 octahedra. Co(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 CoO6 octahedra that share corners with six equivalent Tb(1)O6 octahedra,  a faceface with one Eu(3)O12 cuboctahedra, and  a faceface with one Eu(4)O12 cuboctahedra. The corner-sharing octahedral tilt angles range from 12-16°. There are six inequivalent O sites. In the first O site, O(5) is bonded in a 3-coordinate geometry to one Sr(1), one Tb(1), one Eu(1), one Eu(4), and one Co(1) atom. In the second O site, O(6) is bonded in a 3-coordinate geometry to one Sr(2), one Tb(1), one Eu(2), one Eu(4), and one Co(1) atom. In the third O site, O(1) is bonded in a 3-coordinate geometry to one Tb(1), one Eu(2), one Eu(3), and one Co(1) atom. In the fourth O site, O(2) is bonded in a 2-coordinate geometry to one Sr(4), one Tb(1), one Eu(3), and one Co(1) atom. In the fifth O site, O(3) is bonded in a 3-coordinate geometry to one Tb(1), one Eu(1), one Eu(3), and one Co(1) atom. In the sixth O site, O(4) is bonded in a 3-coordinate geometry to one Sr(3), one Tb(1), one Eu(4), and one Co(1) atom.
SrTbEuCoO6 is Orthorhombic Perovskite-derived structured and 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 rectangular see-saw-like geometry to four equivalent O(5) atoms. All Sr(1)-O(5) bond lengths are 3.06 Å. In the second Sr site, Sr(2) is bonded in a distorted rectangular see-saw-like geometry to four equivalent O(6) atoms. All Sr(2)-O(6) bond lengths are 3.06 Å. In the third Sr site, Sr(3) is bonded in a distorted square co-planar geometry to four equivalent O(4) atoms. All Sr(3)-O(4) bond lengths are 3.06 Å. In the fourth Sr site, Sr(4) is bonded in a distorted rectangular see-saw-like geometry to four equivalent O(2) atoms. All Sr(4)-O(2) bond lengths are 3.08 Å. Tb(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 TbO6 octahedra that share corners with six equivalent Co(1)O6 octahedra,  a faceface with one Eu(3)O12 cuboctahedra, and  a faceface with one Eu(4)O12 cuboctahedra. The corner-sharing octahedral tilt angles range from 12-16°. The Tb(1)-O(1) bond length is 2.56 Å. The Tb(1)-O(2) bond length is 2.54 Å. The Tb(1)-O(3) bond length is 2.56 Å. The Tb(1)-O(4) bond length is 2.56 Å. The Tb(1)-O(5) bond length is 2.56 Å. The Tb(1)-O(6) bond length is 2.57 Å. There are four inequivalent Eu sites. In the first Eu site, Eu(1) is bonded in a distorted rectangular see-saw-like geometry to four equivalent O(3) and four equivalent O(5) atoms. All Eu(1)-O(3) bond lengths are 3.00 Å. All Eu(1)-O(5) bond lengths are 3.34 Å. In the second Eu site, Eu(2) is bonded in a distorted square co-planar geometry to four equivalent O(1) and four equivalent O(6) atoms. All Eu(2)-O(1) bond lengths are 3.04 Å. All Eu(2)-O(6) bond lengths are 3.33 Å. In the third Eu site, Eu(3) 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 Tb(1)O6 octahedra and faces with four equivalent Co(1)O6 octahedra. All Eu(3)-O(1) bond lengths are 3.31 Å. All Eu(3)-O(2) bond lengths are 3.31 Å. All Eu(3)-O(3) bond lengths are 3.30 Å. In the fourth Eu site, Eu(4) is bonded to four equivalent O(4), four equivalent O(5), and four equivalent O(6) atoms to form distorted EuO12 cuboctahedra that share faces with four equivalent Tb(1)O6 octahedra and faces with four equivalent Co(1)O6 octahedra. All Eu(4)-O(4) bond lengths are 3.31 Å. All Eu(4)-O(5) bond lengths are 3.34 Å. All Eu(4)-O(6) bond lengths are 3.33 Å. Co(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 CoO6 octahedra that share corners with six equivalent Tb(1)O6 octahedra,  a faceface with one Eu(3)O12 cuboctahedra, and  a faceface with one Eu(4)O12 cuboctahedra. The corner-sharing octahedral tilt angles range from 12-16°. The Co(1)-O(1) bond length is 2.21 Å. The Co(1)-O(2) bond length is 2.15 Å. The Co(1)-O(3) bond length is 2.20 Å. The Co(1)-O(4) bond length is 2.12 Å. The Co(1)-O(5) bond length is 2.17 Å. The Co(1)-O(6) bond length is 2.16 Å. There are six inequivalent O sites. In the first O site, O(5) is bonded in a 3-coordinate geometry to one Sr(1), one Tb(1), one Eu(1), one Eu(4), and one Co(1) atom. In the second O site, O(6) is bonded in a 3-coordinate geometry to one Sr(2), one Tb(1), one Eu(2), one Eu(4), and one Co(1) atom. In the third O site, O(1) is bonded in a 3-coordinate geometry to one Tb(1), one Eu(2), one Eu(3), and one Co(1) atom. In the fourth O site, O(2) is bonded in a 2-coordinate geometry to one Sr(4), one Tb(1), one Eu(3), and one Co(1) atom. In the fifth O site, O(3) is bonded in a 3-coordinate geometry to one Tb(1), one Eu(1), one Eu(3), and one Co(1) atom. In the sixth O site, O(4) is bonded in a 3-coordinate geometry to one Sr(3), one Tb(1), one Eu(4), and one Co(1) atom.