Sr4MgTb2(RuO6)2 is Orthorhombic Perovskite-derived structured and crystallizes in the triclinic P1 space group. There are four inequivalent Sr sites. In the first Sr site, Sr(1) is bonded in a 9-coordinate geometry to one O(1), one O(2), one O(4), one O(5), one O(6), one O(7), one O(9), and two equivalent O(10) atoms. In the second Sr site, Sr(2) is bonded in a 5-coordinate geometry to one O(1), one O(10), one O(2), one O(6), one O(8), and one O(9) atom. In the third Sr site, Sr(3) is bonded in a 6-coordinate geometry to one O(11), one O(12), one O(2), one O(3), one O(5), and one O(8) atom. In the fourth Sr site, Sr(4) is bonded in a 7-coordinate geometry to one O(12), one O(2), one O(3), one O(4), one O(5), one O(7), and one O(8) atom. Mg(1) is bonded to one O(11), one O(12), one O(3), one O(4), and one O(7) atom to form distorted MgO5 trigonal bipyramids that share  an edgeedge with one Tb(2)O6 octahedra,  an edgeedge with one Ru(2)O6 octahedra, and  a faceface with one Ru(1)O6 octahedra. There are two inequivalent Tb sites. In the first Tb site, Tb(1) is bonded in a 5-coordinate geometry to one O(1), one O(11), one O(5), one O(7), and one O(9) atom. In the second Tb site, Tb(2) is bonded to one O(10), one O(12), one O(2), one O(4), one O(6), and one O(8) atom to form distorted TbO6 octahedra that share corners with two equivalent Ru(1)O6 octahedra, corners with four equivalent Ru(2)O6 octahedra, and  an edgeedge with one Mg(1)O5 trigonal bipyramid. The corner-sharing octahedral tilt angles range from 12-37°. There are two inequivalent Ru sites. In the first Ru site, Ru(1) is bonded to one O(1), one O(10), one O(12), one O(3), one O(5), and one O(7) atom to form RuO6 octahedra that share corners with two equivalent Tb(2)O6 octahedra and  a faceface with one Mg(1)O5 trigonal bipyramid. The corner-sharing octahedral tilt angles range from 12-37°. In the second Ru site, Ru(2) is bonded to one O(11), one O(2), one O(4), one O(6), one O(8), and one O(9) atom to form RuO6 octahedra that share corners with four equivalent Tb(2)O6 octahedra and  an edgeedge with one Mg(1)O5 trigonal bipyramid. The corner-sharing octahedral tilt angles range from 20-28°. There are twelve inequivalent O sites. In the first O site, O(1) is bonded in a 4-coordinate geometry to one Sr(1), one Sr(2), one Tb(1), and one Ru(1) atom. In the second O site, O(2) is bonded in a 6-coordinate geometry to one Sr(1), one Sr(2), one Sr(3), one Sr(4), one Tb(2), and one Ru(2) atom. In the third O site, O(3) is bonded in a 4-coordinate geometry to one Sr(3), one Sr(4), one Mg(1), and one Ru(1) atom. In the fourth O site, O(4) is bonded in a 5-coordinate geometry to one Sr(1), one Sr(4), one Mg(1), one Tb(2), and one Ru(2) atom. In the fifth O site, O(5) is bonded in a 5-coordinate geometry to one Sr(1), one Sr(3), one Sr(4), one Tb(1), and one Ru(1) atom. In the sixth O site, O(6) is bonded in a 3-coordinate geometry to one Sr(1), one Sr(2), one Tb(2), and one Ru(2) atom. In the seventh O site, O(7) is bonded to one Sr(1), one Sr(4), one Mg(1), one Tb(1), and one Ru(1) atom to form distorted OSr2TbMgRu trigonal bipyramids that share  a cornercorner with one O(8)Sr3TbRu trigonal bipyramid and  an edgeedge with one O(9)Sr2TbRu trigonal pyramid. In the eighth O site, O(8) is bonded to one Sr(2), one Sr(3), one Sr(4), one Tb(2), and one Ru(2) atom to form distorted OSr3TbRu trigonal bipyramids that share  a cornercorner with one O(7)Sr2TbMgRu trigonal bipyramid and  an edgeedge with one O(9)Sr2TbRu trigonal pyramid. In the ninth O site, O(9) is bonded to one Sr(1), one Sr(2), one Tb(1), and one Ru(2) atom to form distorted OSr2TbRu trigonal pyramids that share  an edgeedge with one O(7)Sr2TbMgRu trigonal bipyramid and  an edgeedge with one O(8)Sr3TbRu trigonal bipyramid. In the tenth O site, O(10) is bonded in a 4-coordinate geometry to one Sr(2), two equivalent Sr(1), one Tb(2), and one Ru(1) atom. In the eleventh O site, O(11) is bonded in a 4-coordinate geometry to one Sr(3), one Mg(1), one Tb(1), and one Ru(2) atom. In the twelfth O site, O(12) is bonded in a 5-coordinate geometry to one Sr(3), one Sr(4), one Mg(1), one Tb(2), and one Ru(1) atom.
Sr4MgTb2(RuO6)2 is Orthorhombic Perovskite-derived structured and crystallizes in the triclinic P1 space group. There are four inequivalent Sr sites. In the first Sr site, Sr(1) is bonded in a 9-coordinate geometry to one O(1), one O(2), one O(4), one O(5), one O(6), one O(7), one O(9), and two equivalent O(10) atoms. The Sr(1)-O(1) bond length is 2.89 Å. The Sr(1)-O(2) bond length is 2.82 Å. The Sr(1)-O(4) bond length is 3.02 Å. The Sr(1)-O(5) bond length is 2.71 Å. The Sr(1)-O(6) bond length is 3.07 Å. The Sr(1)-O(7) bond length is 2.62 Å. The Sr(1)-O(9) bond length is 2.61 Å. There is one shorter (2.73 Å) and one longer (3.23 Å) Sr(1)-O(10) bond length. In the second Sr site, Sr(2) is bonded in a 5-coordinate geometry to one O(1), one O(10), one O(2), one O(6), one O(8), and one O(9) atom. The Sr(2)-O(1) bond length is 2.61 Å. The Sr(2)-O(10) bond length is 2.52 Å. The Sr(2)-O(2) bond length is 3.01 Å. The Sr(2)-O(6) bond length is 2.51 Å. The Sr(2)-O(8) bond length is 2.66 Å. The Sr(2)-O(9) bond length is 2.52 Å. In the third Sr site, Sr(3) is bonded in a 6-coordinate geometry to one O(11), one O(12), one O(2), one O(3), one O(5), and one O(8) atom. The Sr(3)-O(11) bond length is 2.61 Å. The Sr(3)-O(12) bond length is 2.39 Å. The Sr(3)-O(2) bond length is 2.58 Å. The Sr(3)-O(3) bond length is 2.40 Å. The Sr(3)-O(5) bond length is 2.70 Å. The Sr(3)-O(8) bond length is 2.55 Å. In the fourth Sr site, Sr(4) is bonded in a 7-coordinate geometry to one O(12), one O(2), one O(3), one O(4), one O(5), one O(7), and one O(8) atom. The Sr(4)-O(12) bond length is 2.66 Å. The Sr(4)-O(2) bond length is 2.91 Å. The Sr(4)-O(3) bond length is 2.60 Å. The Sr(4)-O(4) bond length is 2.73 Å. The Sr(4)-O(5) bond length is 2.62 Å. The Sr(4)-O(7) bond length is 2.61 Å. The Sr(4)-O(8) bond length is 2.54 Å. Mg(1) is bonded to one O(11), one O(12), one O(3), one O(4), and one O(7) atom to form distorted MgO5 trigonal bipyramids that share  an edgeedge with one Tb(2)O6 octahedra,  an edgeedge with one Ru(2)O6 octahedra, and  a faceface with one Ru(1)O6 octahedra. The Mg(1)-O(11) bond length is 2.11 Å. The Mg(1)-O(12) bond length is 2.00 Å. The Mg(1)-O(3) bond length is 2.18 Å. The Mg(1)-O(4) bond length is 2.08 Å. The Mg(1)-O(7) bond length is 2.05 Å. There are two inequivalent Tb sites. In the first Tb site, Tb(1) is bonded in a 5-coordinate geometry to one O(1), one O(11), one O(5), one O(7), and one O(9) atom. The Tb(1)-O(1) bond length is 2.14 Å. The Tb(1)-O(11) bond length is 2.25 Å. The Tb(1)-O(5) bond length is 2.24 Å. The Tb(1)-O(7) bond length is 2.33 Å. The Tb(1)-O(9) bond length is 2.19 Å. In the second Tb site, Tb(2) is bonded to one O(10), one O(12), one O(2), one O(4), one O(6), and one O(8) atom to form distorted TbO6 octahedra that share corners with two equivalent Ru(1)O6 octahedra, corners with four equivalent Ru(2)O6 octahedra, and  an edgeedge with one Mg(1)O5 trigonal bipyramid. The corner-sharing octahedral tilt angles range from 12-37°. The Tb(2)-O(10) bond length is 2.18 Å. The Tb(2)-O(12) bond length is 2.28 Å. The Tb(2)-O(2) bond length is 2.23 Å. The Tb(2)-O(4) bond length is 2.22 Å. The Tb(2)-O(6) bond length is 2.25 Å. The Tb(2)-O(8) bond length is 2.57 Å. There are two inequivalent Ru sites. In the first Ru site, Ru(1) is bonded to one O(1), one O(10), one O(12), one O(3), one O(5), and one O(7) atom to form RuO6 octahedra that share corners with two equivalent Tb(2)O6 octahedra and  a faceface with one Mg(1)O5 trigonal bipyramid. The corner-sharing octahedral tilt angles range from 12-37°. The Ru(1)-O(1) bond length is 1.99 Å. The Ru(1)-O(10) bond length is 1.99 Å. The Ru(1)-O(12) bond length is 2.09 Å. The Ru(1)-O(3) bond length is 2.04 Å. The Ru(1)-O(5) bond length is 2.08 Å. The Ru(1)-O(7) bond length is 2.10 Å. In the second Ru site, Ru(2) is bonded to one O(11), one O(2), one O(4), one O(6), one O(8), and one O(9) atom to form RuO6 octahedra that share corners with four equivalent Tb(2)O6 octahedra and  an edgeedge with one Mg(1)O5 trigonal bipyramid. The corner-sharing octahedral tilt angles range from 20-28°. The Ru(2)-O(11) bond length is 2.08 Å. The Ru(2)-O(2) bond length is 2.04 Å. The Ru(2)-O(4) bond length is 2.00 Å. The Ru(2)-O(6) bond length is 2.03 Å. The Ru(2)-O(8) bond length is 2.17 Å. The Ru(2)-O(9) bond length is 2.02 Å. There are twelve inequivalent O sites. In the first O site, O(1) is bonded in a 4-coordinate geometry to one Sr(1), one Sr(2), one Tb(1), and one Ru(1) atom. In the second O site, O(2) is bonded in a 6-coordinate geometry to one Sr(1), one Sr(2), one Sr(3), one Sr(4), one Tb(2), and one Ru(2) atom. In the third O site, O(3) is bonded in a 4-coordinate geometry to one Sr(3), one Sr(4), one Mg(1), and one Ru(1) atom. In the fourth O site, O(4) is bonded in a 5-coordinate geometry to one Sr(1), one Sr(4), one Mg(1), one Tb(2), and one Ru(2) atom. In the fifth O site, O(5) is bonded in a 5-coordinate geometry to one Sr(1), one Sr(3), one Sr(4), one Tb(1), and one Ru(1) atom. In the sixth O site, O(6) is bonded in a 3-coordinate geometry to one Sr(1), one Sr(2), one Tb(2), and one Ru(2) atom. In the seventh O site, O(7) is bonded to one Sr(1), one Sr(4), one Mg(1), one Tb(1), and one Ru(1) atom to form distorted OSr2TbMgRu trigonal bipyramids that share  a cornercorner with one O(8)Sr3TbRu trigonal bipyramid and  an edgeedge with one O(9)Sr2TbRu trigonal pyramid. In the eighth O site, O(8) is bonded to one Sr(2), one Sr(3), one Sr(4), one Tb(2), and one Ru(2) atom to form distorted OSr3TbRu trigonal bipyramids that share  a cornercorner with one O(7)Sr2TbMgRu trigonal bipyramid and  an edgeedge with one O(9)Sr2TbRu trigonal pyramid. In the ninth O site, O(9) is bonded to one Sr(1), one Sr(2), one Tb(1), and one Ru(2) atom to form distorted OSr2TbRu trigonal pyramids that share  an edgeedge with one O(7)Sr2TbMgRu trigonal bipyramid and  an edgeedge with one O(8)Sr3TbRu trigonal bipyramid. In the tenth O site, O(10) is bonded in a 4-coordinate geometry to one Sr(2), two equivalent Sr(1), one Tb(2), and one Ru(1) atom. In the eleventh O site, O(11) is bonded in a 4-coordinate geometry to one Sr(3), one Mg(1), one Tb(1), and one Ru(2) atom. In the twelfth O site, O(12) is bonded in a 5-coordinate geometry to one Sr(3), one Sr(4), one Mg(1), one Tb(2), and one Ru(1) atom.