Sr2MgPr2Fe2(RuO6)2 crystallizes in the triclinic P1 space group. There are two inequivalent Sr sites. In the first Sr site, Sr(1) is bonded in a 8-coordinate geometry to one O(1), one O(10), one O(11), one O(6), one O(7), one O(8), and two equivalent O(2) atoms. In the second Sr site, Sr(2) is bonded in a 5-coordinate geometry to one O(11), one O(12), one O(3), one O(5), and one O(6) atom. Mg(1) is bonded to one O(1), one O(2), one O(5), one O(8), and one O(9) atom to form MgO5 trigonal bipyramids that share  a cornercorner with one Ru(2)O6 octahedra and edges with two equivalent Ru(1)O6 octahedra. The corner-sharing octahedral tilt angles are 46°. There are two inequivalent Pr sites. In the first Pr site, Pr(1) is bonded in a 7-coordinate geometry to one O(1), one O(10), one O(11), one O(2), one O(6), one O(7), and one O(9) atom. In the second Pr site, Pr(2) is bonded in a 7-coordinate geometry to one O(11), one O(12), one O(3), one O(4), one O(5), one O(6), and one O(8) atom. There are two inequivalent Ru sites. In the first Ru site, Ru(1) is bonded to one O(1), one O(12), one O(3), one O(5), one O(8), and one O(9) atom to form RuO6 octahedra that share  a cornercorner with one Fe(1)O5 trigonal bipyramid and edges with two equivalent Mg(1)O5 trigonal bipyramids. In the second Ru site, Ru(2) is bonded to one O(10), one O(11), one O(2), one O(4), one O(6), and one O(7) atom to form RuO6 octahedra that share  a cornercorner with one Mg(1)O5 trigonal bipyramid and corners with four equivalent Fe(1)O5 trigonal bipyramids. There are two inequivalent Fe sites. In the first Fe site, Fe(1) is bonded to one O(10), one O(11), one O(3), one O(6), and one O(7) atom to form FeO5 trigonal bipyramids that share  a cornercorner with one Ru(1)O6 octahedra and corners with four equivalent Ru(2)O6 octahedra. The corner-sharing octahedral tilt angles range from 5-35°. In the second Fe site, Fe(2) is bonded in a 5-coordinate geometry to one O(12), one O(4), one O(5), one O(8), and one O(9) atom. There are twelve inequivalent O sites. In the first O site, O(1) is bonded in a rectangular see-saw-like geometry to one Sr(1), one Mg(1), one Pr(1), and one Ru(1) atom. In the second O site, O(2) is bonded in a 5-coordinate geometry to two equivalent Sr(1), one Mg(1), one Pr(1), and one Ru(2) atom. In the third O site, O(3) is bonded in a 4-coordinate geometry to one Sr(2), one Pr(2), one Ru(1), and one Fe(1) atom. In the fourth O site, O(4) is bonded in a 3-coordinate geometry to one Pr(2), one Ru(2), and one Fe(2) atom. In the fifth O site, O(5) is bonded in a 5-coordinate geometry to one Sr(2), one Mg(1), one Pr(2), one Ru(1), and one Fe(2) atom. In the sixth O site, O(6) is bonded in a 6-coordinate geometry to one Sr(1), one Sr(2), one Pr(1), one Pr(2), one Ru(2), and one Fe(1) atom. In the seventh O site, O(7) is bonded in a 4-coordinate geometry to one Sr(1), one Pr(1), one Ru(2), and one Fe(1) atom. In the eighth O site, O(8) is bonded in a 5-coordinate geometry to one Sr(1), one Mg(1), one Pr(2), one Ru(1), and one Fe(2) atom. In the ninth O site, O(9) is bonded in a 4-coordinate geometry to one Mg(1), one Pr(1), one Ru(1), and one Fe(2) atom. In the tenth O site, O(10) is bonded in a 4-coordinate geometry to one Sr(1), one Pr(1), one Ru(2), and one Fe(1) atom. In the eleventh O site, O(11) is bonded to one Sr(1), one Sr(2), one Pr(1), one Pr(2), one Ru(2), and one Fe(1) atom to form distorted corner-sharing OSr2Pr2FeRu octahedra. In the twelfth O site, O(12) is bonded to one Sr(2), one Pr(2), one Ru(1), and one Fe(2) atom to form distorted corner-sharing OSrPrFeRu trigonal pyramids. The corner-sharing octahedral tilt angles range from 54-65°.
Sr2MgPr2Fe2(RuO6)2 crystallizes in the triclinic P1 space group. There are two inequivalent Sr sites. In the first Sr site, Sr(1) is bonded in a 8-coordinate geometry to one O(1), one O(10), one O(11), one O(6), one O(7), one O(8), and two equivalent O(2) atoms. The Sr(1)-O(1) bond length is 2.45 Å. The Sr(1)-O(10) bond length is 2.57 Å. The Sr(1)-O(11) bond length is 2.94 Å. The Sr(1)-O(6) bond length is 3.08 Å. The Sr(1)-O(7) bond length is 2.52 Å. The Sr(1)-O(8) bond length is 2.63 Å. There is one shorter (2.61 Å) and one longer (2.95 Å) Sr(1)-O(2) bond length. In the second Sr site, Sr(2) is bonded in a 5-coordinate geometry to one O(11), one O(12), one O(3), one O(5), and one O(6) atom. The Sr(2)-O(11) bond length is 2.66 Å. The Sr(2)-O(12) bond length is 2.69 Å. The Sr(2)-O(3) bond length is 2.42 Å. The Sr(2)-O(5) bond length is 2.43 Å. The Sr(2)-O(6) bond length is 2.55 Å. Mg(1) is bonded to one O(1), one O(2), one O(5), one O(8), and one O(9) atom to form MgO5 trigonal bipyramids that share  a cornercorner with one Ru(2)O6 octahedra and edges with two equivalent Ru(1)O6 octahedra. The corner-sharing octahedral tilt angles are 46°. The Mg(1)-O(1) bond length is 2.18 Å. The Mg(1)-O(2) bond length is 2.04 Å. The Mg(1)-O(5) bond length is 1.97 Å. The Mg(1)-O(8) bond length is 2.07 Å. The Mg(1)-O(9) bond length is 2.06 Å. There are two inequivalent Pr sites. In the first Pr site, Pr(1) is bonded in a 7-coordinate geometry to one O(1), one O(10), one O(11), one O(2), one O(6), one O(7), and one O(9) atom. The Pr(1)-O(1) bond length is 2.36 Å. The Pr(1)-O(10) bond length is 2.42 Å. The Pr(1)-O(11) bond length is 2.76 Å. The Pr(1)-O(2) bond length is 2.44 Å. The Pr(1)-O(6) bond length is 2.49 Å. The Pr(1)-O(7) bond length is 2.45 Å. The Pr(1)-O(9) bond length is 2.52 Å. In the second Pr site, Pr(2) is bonded in a 7-coordinate geometry to one O(11), one O(12), one O(3), one O(4), one O(5), one O(6), and one O(8) atom. The Pr(2)-O(11) bond length is 2.55 Å. The Pr(2)-O(12) bond length is 2.36 Å. The Pr(2)-O(3) bond length is 2.56 Å. The Pr(2)-O(4) bond length is 2.38 Å. The Pr(2)-O(5) bond length is 2.45 Å. The Pr(2)-O(6) bond length is 2.78 Å. The Pr(2)-O(8) bond length is 2.87 Å. There are two inequivalent Ru sites. In the first Ru site, Ru(1) is bonded to one O(1), one O(12), one O(3), one O(5), one O(8), and one O(9) atom to form RuO6 octahedra that share  a cornercorner with one Fe(1)O5 trigonal bipyramid and edges with two equivalent Mg(1)O5 trigonal bipyramids. The Ru(1)-O(1) bond length is 2.01 Å. The Ru(1)-O(12) bond length is 2.00 Å. The Ru(1)-O(3) bond length is 2.10 Å. The Ru(1)-O(5) bond length is 2.04 Å. The Ru(1)-O(8) bond length is 2.05 Å. The Ru(1)-O(9) bond length is 2.20 Å. In the second Ru site, Ru(2) is bonded to one O(10), one O(11), one O(2), one O(4), one O(6), and one O(7) atom to form RuO6 octahedra that share  a cornercorner with one Mg(1)O5 trigonal bipyramid and corners with four equivalent Fe(1)O5 trigonal bipyramids. The Ru(2)-O(10) bond length is 2.05 Å. The Ru(2)-O(11) bond length is 2.06 Å. The Ru(2)-O(2) bond length is 2.13 Å. The Ru(2)-O(4) bond length is 2.09 Å. The Ru(2)-O(6) bond length is 2.07 Å. The Ru(2)-O(7) bond length is 2.03 Å. There are two inequivalent Fe sites. In the first Fe site, Fe(1) is bonded to one O(10), one O(11), one O(3), one O(6), and one O(7) atom to form FeO5 trigonal bipyramids that share  a cornercorner with one Ru(1)O6 octahedra and corners with four equivalent Ru(2)O6 octahedra. The corner-sharing octahedral tilt angles range from 5-35°. The Fe(1)-O(10) bond length is 1.98 Å. The Fe(1)-O(11) bond length is 2.03 Å. The Fe(1)-O(3) bond length is 1.91 Å. The Fe(1)-O(6) bond length is 1.98 Å. The Fe(1)-O(7) bond length is 1.97 Å. In the second Fe site, Fe(2) is bonded in a 5-coordinate geometry to one O(12), one O(4), one O(5), one O(8), and one O(9) atom. The Fe(2)-O(12) bond length is 2.04 Å. The Fe(2)-O(4) bond length is 2.06 Å. The Fe(2)-O(5) bond length is 2.48 Å. The Fe(2)-O(8) bond length is 2.15 Å. The Fe(2)-O(9) bond length is 2.05 Å. There are twelve inequivalent O sites. In the first O site, O(1) is bonded in a rectangular see-saw-like geometry to one Sr(1), one Mg(1), one Pr(1), and one Ru(1) atom. In the second O site, O(2) is bonded in a 5-coordinate geometry to two equivalent Sr(1), one Mg(1), one Pr(1), and one Ru(2) atom. In the third O site, O(3) is bonded in a 4-coordinate geometry to one Sr(2), one Pr(2), one Ru(1), and one Fe(1) atom. In the fourth O site, O(4) is bonded in a 3-coordinate geometry to one Pr(2), one Ru(2), and one Fe(2) atom. In the fifth O site, O(5) is bonded in a 5-coordinate geometry to one Sr(2), one Mg(1), one Pr(2), one Ru(1), and one Fe(2) atom. In the sixth O site, O(6) is bonded in a 6-coordinate geometry to one Sr(1), one Sr(2), one Pr(1), one Pr(2), one Ru(2), and one Fe(1) atom. In the seventh O site, O(7) is bonded in a 4-coordinate geometry to one Sr(1), one Pr(1), one Ru(2), and one Fe(1) atom. In the eighth O site, O(8) is bonded in a 5-coordinate geometry to one Sr(1), one Mg(1), one Pr(2), one Ru(1), and one Fe(2) atom. In the ninth O site, O(9) is bonded in a 4-coordinate geometry to one Mg(1), one Pr(1), one Ru(1), and one Fe(2) atom. In the tenth O site, O(10) is bonded in a 4-coordinate geometry to one Sr(1), one Pr(1), one Ru(2), and one Fe(1) atom. In the eleventh O site, O(11) is bonded to one Sr(1), one Sr(2), one Pr(1), one Pr(2), one Ru(2), and one Fe(1) atom to form distorted corner-sharing OSr2Pr2FeRu octahedra. In the twelfth O site, O(12) is bonded to one Sr(2), one Pr(2), one Ru(1), and one Fe(2) atom to form distorted corner-sharing OSrPrFeRu trigonal pyramids. The corner-sharing octahedral tilt angles range from 54-65°.