The compound described by Ba6MgPr2(Ru2O9)2 is Orthorhombic Perovskite-derived structured and crystallizes in the monoclinic C2/m space group. There are three inequivalent Ba sites. In the first Ba site, Ba(1) is bonded in a 5-coordinate geometry to one O(6), two equivalent O(3), two equivalent O(4), and two equivalent O(5) atoms. In the second Ba site, Ba(2) is bonded to one O(1), one O(4), two equivalent O(2), two equivalent O(3), two equivalent O(6), and four equivalent O(5) atoms to form distorted BaO12 cuboctahedra that share corners with three equivalent Ba(3)O12 cuboctahedra, corners with six equivalent Ba(2)O12 cuboctahedra, faces with three equivalent Ba(3)O12 cuboctahedra,  a faceface with one Pr(1)O6 octahedra,  a faceface with one Pr(2)O6 octahedra, faces with three equivalent Ru(1)O6 octahedra, and faces with three equivalent Ru(2)O6 octahedra. In the third Ba site, Ba(3) is bonded to one O(6), two equivalent O(5), three equivalent O(1), and six equivalent O(2) atoms to form distorted BaO12 cuboctahedra that share corners with three equivalent Ba(2)O12 cuboctahedra, corners with six equivalent Ba(3)O12 cuboctahedra, corners with three equivalent Ru(1)O6 octahedra, faces with three equivalent Ba(2)O12 cuboctahedra, faces with three equivalent Ba(3)O12 cuboctahedra, faces with three equivalent Pr(2)O6 octahedra, and faces with four equivalent Ru(2)O6 octahedra. The corner-sharing octahedral tilt angles range from 10-20°. Mg(1) is bonded in a square co-planar geometry to four equivalent O(3) atoms. There are two inequivalent Pr sites. In the first Pr site, Pr(1) is bonded to two equivalent O(4) and four equivalent O(3) atoms to form PrO6 octahedra that share corners with six equivalent Ru(1)O6 octahedra and faces with two equivalent Ba(2)O12 cuboctahedra. The corner-sharing octahedral tilt angles range from 7-8°. In the second Pr site, Pr(2) is bonded to two equivalent O(1) and four equivalent O(2) atoms to form PrO6 octahedra that share corners with six equivalent Ru(2)O6 octahedra, faces with two equivalent Ba(2)O12 cuboctahedra, and faces with six equivalent Ba(3)O12 cuboctahedra. The corner-sharing octahedral tilt angles range from 11-14°. There are two inequivalent Ru sites. In the first Ru site, Ru(1) is bonded to one O(4), one O(6), two equivalent O(3), and two equivalent O(5) atoms to form RuO6 octahedra that share corners with three equivalent Ba(3)O12 cuboctahedra, corners with three equivalent Pr(1)O6 octahedra, faces with three equivalent Ba(2)O12 cuboctahedra, and  a faceface with one Ru(2)O6 octahedra. The corner-sharing octahedral tilt angles range from 7-8°. In the second Ru site, Ru(2) is bonded to one O(1), one O(6), two equivalent O(2), and two equivalent O(5) atoms to form RuO6 octahedra that share corners with three equivalent Pr(2)O6 octahedra, faces with three equivalent Ba(2)O12 cuboctahedra, faces with four equivalent Ba(3)O12 cuboctahedra, and  a faceface with one Ru(1)O6 octahedra. The corner-sharing octahedral tilt angles range from 11-14°. There are six inequivalent O sites. In the first O site, O(5) is bonded in a 6-coordinate geometry to one Ba(1), one Ba(3), two equivalent Ba(2), one Ru(1), and one Ru(2) atom. In the second O site, O(6) is bonded in a 3-coordinate geometry to one Ba(1), one Ba(3), two equivalent Ba(2), one Ru(1), and one Ru(2) atom. In the third O site, O(1) is bonded in a 2-coordinate geometry to one Ba(2), three equivalent Ba(3), one Pr(2), and one Ru(2) atom. In the fourth O site, O(2) is bonded in a 2-coordinate geometry to one Ba(2), three equivalent Ba(3), one Pr(2), and one Ru(2) atom. In the fifth O site, O(3) is bonded in a 3-coordinate geometry to one Ba(1), one Ba(2), one Mg(1), one Pr(1), and one Ru(1) atom. In the sixth O site, O(4) is bonded in a 5-coordinate geometry to one Ba(2), two equivalent Ba(1), one Pr(1), and one Ru(1) atom. is represented by the CIF card [CIF]
data_Ba6Pr2Mg(Ru2O9)2
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   6.058
_cell_length_b   6.058
_cell_length_c   15.257
_cell_angle_alpha   87.283
_cell_angle_beta   92.717
_cell_angle_gamma   119.261
_symmetry_Int_Tables_number   1
_cell_volume   487.772
_cell_formula_units_Z   1
loop_
 _symmetry_equiv_pos_site_id
 _symmetry_equiv_pos_as_xyz
  1  'x, y, z'
loop_
 _atom_site_type_symbol
 _atom_site_label
 _atom_site_symmetry_multiplicity
 _atom_site_fract_x
 _atom_site_fract_y
 _atom_site_fract_z
 _atom_site_occupancy
  Ba  Ba0  1  0.297  0.703  0.640  1.0
  Ba  Ba1  1  0.022  0.978  0.240  1.0
  Ba  Ba2  1  0.703  0.297  0.360  1.0
  Ba  Ba3  1  0.673  0.327  0.089  1.0
  Ba  Ba4  1  0.327  0.673  0.911  1.0
  Ba  Ba5  1  0.978  0.022  0.760  1.0
  Pr  Pr6  1  0.000  0.000  0.500  1.0
  Pr  Pr7  1  0.000  0.000  0.000  1.0
  Mg  Mg8  1  0.500  0.500  0.500  1.0
  Ru  Ru9  1  0.334  0.666  0.328  1.0
  Ru  Ru10  1  0.652  0.348  0.838  1.0
  Ru  Ru11  1  0.666  0.334  0.672  1.0
  Ru  Ru12  1  0.348  0.652  0.162  1.0
  O  O13  1  0.202  0.798  0.075  1.0
  O  O14  1  0.204  0.335  0.096  1.0
  O  O15  1  0.665  0.796  0.096  1.0
  O  O16  1  0.364  0.199  0.586  1.0
  O  O17  1  0.796  0.665  0.904  1.0
  O  O18  1  0.824  0.176  0.603  1.0
  O  O19  1  0.801  0.636  0.586  1.0
  O  O20  1  0.176  0.824  0.397  1.0
  O  O21  1  0.636  0.801  0.414  1.0
  O  O22  1  0.335  0.204  0.904  1.0
  O  O23  1  0.798  0.202  0.925  1.0
  O  O24  1  0.199  0.364  0.414  1.0
  O  O25  1  0.490  0.970  0.237  1.0
  O  O26  1  0.506  0.494  0.743  1.0
  O  O27  1  0.970  0.490  0.763  1.0
  O  O28  1  0.030  0.510  0.237  1.0
  O  O29  1  0.494  0.506  0.257  1.0
  O  O30  1  0.510  0.030  0.763  1.0
[/CIF]
.
The compound described by Ba6MgPr2(Ru2O9)2 is Orthorhombic Perovskite-derived structured and crystallizes in the monoclinic C2/m space group. There are three inequivalent Ba sites. In the first Ba site, Ba(1) is bonded in a 5-coordinate geometry to one O(6), two equivalent O(3), two equivalent O(4), and two equivalent O(5) atoms. In the second Ba site, Ba(2) is bonded to one O(1), one O(4), two equivalent O(2), two equivalent O(3), two equivalent O(6), and four equivalent O(5) atoms to form distorted BaO12 cuboctahedra that share corners with three equivalent Ba(3)O12 cuboctahedra, corners with six equivalent Ba(2)O12 cuboctahedra, faces with three equivalent Ba(3)O12 cuboctahedra,  a faceface with one Pr(1)O6 octahedra,  a faceface with one Pr(2)O6 octahedra, faces with three equivalent Ru(1)O6 octahedra, and faces with three equivalent Ru(2)O6 octahedra. In the third Ba site, Ba(3) is bonded to one O(6), two equivalent O(5), three equivalent O(1), and six equivalent O(2) atoms to form distorted BaO12 cuboctahedra that share corners with three equivalent Ba(2)O12 cuboctahedra, corners with six equivalent Ba(3)O12 cuboctahedra, corners with three equivalent Ru(1)O6 octahedra, faces with three equivalent Ba(2)O12 cuboctahedra, faces with three equivalent Ba(3)O12 cuboctahedra, faces with three equivalent Pr(2)O6 octahedra, and faces with four equivalent Ru(2)O6 octahedra. The corner-sharing octahedral tilt angles range from 10-20°. Mg(1) is bonded in a square co-planar geometry to four equivalent O(3) atoms. There are two inequivalent Pr sites. In the first Pr site, Pr(1) is bonded to two equivalent O(4) and four equivalent O(3) atoms to form PrO6 octahedra that share corners with six equivalent Ru(1)O6 octahedra and faces with two equivalent Ba(2)O12 cuboctahedra. The corner-sharing octahedral tilt angles range from 7-8°. In the second Pr site, Pr(2) is bonded to two equivalent O(1) and four equivalent O(2) atoms to form PrO6 octahedra that share corners with six equivalent Ru(2)O6 octahedra, faces with two equivalent Ba(2)O12 cuboctahedra, and faces with six equivalent Ba(3)O12 cuboctahedra. The corner-sharing octahedral tilt angles range from 11-14°. There are two inequivalent Ru sites. In the first Ru site, Ru(1) is bonded to one O(4), one O(6), two equivalent O(3), and two equivalent O(5) atoms to form RuO6 octahedra that share corners with three equivalent Ba(3)O12 cuboctahedra, corners with three equivalent Pr(1)O6 octahedra, faces with three equivalent Ba(2)O12 cuboctahedra, and  a faceface with one Ru(2)O6 octahedra. The corner-sharing octahedral tilt angles range from 7-8°. In the second Ru site, Ru(2) is bonded to one O(1), one O(6), two equivalent O(2), and two equivalent O(5) atoms to form RuO6 octahedra that share corners with three equivalent Pr(2)O6 octahedra, faces with three equivalent Ba(2)O12 cuboctahedra, faces with four equivalent Ba(3)O12 cuboctahedra, and  a faceface with one Ru(1)O6 octahedra. The corner-sharing octahedral tilt angles range from 11-14°. There are six inequivalent O sites. In the first O site, O(5) is bonded in a 6-coordinate geometry to one Ba(1), one Ba(3), two equivalent Ba(2), one Ru(1), and one Ru(2) atom. In the second O site, O(6) is bonded in a 3-coordinate geometry to one Ba(1), one Ba(3), two equivalent Ba(2), one Ru(1), and one Ru(2) atom. In the third O site, O(1) is bonded in a 2-coordinate geometry to one Ba(2), three equivalent Ba(3), one Pr(2), and one Ru(2) atom. In the fourth O site, O(2) is bonded in a 2-coordinate geometry to one Ba(2), three equivalent Ba(3), one Pr(2), and one Ru(2) atom. In the fifth O site, O(3) is bonded in a 3-coordinate geometry to one Ba(1), one Ba(2), one Mg(1), one Pr(1), and one Ru(1) atom. In the sixth O site, O(4) is bonded in a 5-coordinate geometry to one Ba(2), two equivalent Ba(1), one Pr(1), and one Ru(1) atom. is represented by the CIF card [CIF]
data_Ba6Pr2Mg(Ru2O9)2
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   6.058
_cell_length_b   6.058
_cell_length_c   15.257
_cell_angle_alpha   87.283
_cell_angle_beta   92.717
_cell_angle_gamma   119.261
_symmetry_Int_Tables_number   1
_cell_volume   487.772
_cell_formula_units_Z   1
loop_
 _symmetry_equiv_pos_site_id
 _symmetry_equiv_pos_as_xyz
  1  'x, y, z'
loop_
 _atom_site_type_symbol
 _atom_site_label
 _atom_site_symmetry_multiplicity
 _atom_site_fract_x
 _atom_site_fract_y
 _atom_site_fract_z
 _atom_site_occupancy
  Ba  Ba0  1  0.297  0.703  0.640  1.0
  Ba  Ba1  1  0.022  0.978  0.240  1.0
  Ba  Ba2  1  0.703  0.297  0.360  1.0
  Ba  Ba3  1  0.673  0.327  0.089  1.0
  Ba  Ba4  1  0.327  0.673  0.911  1.0
  Ba  Ba5  1  0.978  0.022  0.760  1.0
  Pr  Pr6  1  0.000  0.000  0.500  1.0
  Pr  Pr7  1  0.000  0.000  0.000  1.0
  Mg  Mg8  1  0.500  0.500  0.500  1.0
  Ru  Ru9  1  0.334  0.666  0.328  1.0
  Ru  Ru10  1  0.652  0.348  0.838  1.0
  Ru  Ru11  1  0.666  0.334  0.672  1.0
  Ru  Ru12  1  0.348  0.652  0.162  1.0
  O  O13  1  0.202  0.798  0.075  1.0
  O  O14  1  0.204  0.335  0.096  1.0
  O  O15  1  0.665  0.796  0.096  1.0
  O  O16  1  0.364  0.199  0.586  1.0
  O  O17  1  0.796  0.665  0.904  1.0
  O  O18  1  0.824  0.176  0.603  1.0
  O  O19  1  0.801  0.636  0.586  1.0
  O  O20  1  0.176  0.824  0.397  1.0
  O  O21  1  0.636  0.801  0.414  1.0
  O  O22  1  0.335  0.204  0.904  1.0
  O  O23  1  0.798  0.202  0.925  1.0
  O  O24  1  0.199  0.364  0.414  1.0
  O  O25  1  0.490  0.970  0.237  1.0
  O  O26  1  0.506  0.494  0.743  1.0
  O  O27  1  0.970  0.490  0.763  1.0
  O  O28  1  0.030  0.510  0.237  1.0
  O  O29  1  0.494  0.506  0.257  1.0
  O  O30  1  0.510  0.030  0.763  1.0
[/CIF]
.