The material described by Sr8Ru2Fe2O13 crystallizes in the monoclinic C2/m space group. There are two inequivalent Sr sites. In the first Sr site, Sr(1) is bonded in a 7-coordinate geometry to one O(3), one O(4), two equivalent O(1), and three equivalent O(2) atoms. In the second Sr site, Sr(2) is bonded in a 8-coordinate geometry to one O(4), one O(5), one O(6), two equivalent O(2), and three equivalent O(1) atoms. Ru(1) is bonded in a square co-planar geometry to one O(3), one O(4), and two equivalent O(2) atoms. Fe(1) is bonded to one O(4), one O(5), one O(6), and two equivalent O(1) atoms to form corner-sharing FeO5 square pyramids. There are six inequivalent O sites. In the first O site, O(3) is bonded to four equivalent Sr(1) and two equivalent Ru(1) atoms to form OSr4Ru2 octahedra that share corners with two equivalent O(4)Sr4FeRu octahedra, corners with four equivalent O(2)Sr5Ru octahedra, corners with eight equivalent O(1)Sr5Fe octahedra, edges with two equivalent O(4)Sr4FeRu octahedra, and faces with four equivalent O(2)Sr5Ru octahedra. The corner-sharing octahedral tilt angles range from 4-63°. In the second O site, O(4) is bonded to two equivalent Sr(1), two equivalent Sr(2), one Ru(1), and one Fe(1) atom to form distorted OSr4FeRu octahedra that share  a cornercorner with one O(5)Sr4Fe2 octahedra,  a cornercorner with one O(3)Sr4Ru2 octahedra, corners with six equivalent O(1)Sr5Fe octahedra, corners with six equivalent O(2)Sr5Ru octahedra,  an edgeedge with one O(5)Sr4Fe2 octahedra,  an edgeedge with one O(3)Sr4Ru2 octahedra,  a faceface with one O(6)Sr4Fe2 octahedra, faces with two equivalent O(1)Sr5Fe octahedra, and faces with two equivalent O(2)Sr5Ru octahedra. The corner-sharing octahedral tilt angles range from 4-61°. In the third O site, O(5) is bonded to four equivalent Sr(2) and two equivalent Fe(1) atoms to form OSr4Fe2 octahedra that share corners with two equivalent O(4)Sr4FeRu octahedra, corners with four equivalent O(1)Sr5Fe octahedra, corners with eight equivalent O(2)Sr5Ru octahedra, edges with two equivalent O(4)Sr4FeRu octahedra, faces with two equivalent O(6)Sr4Fe2 octahedra, and faces with four equivalent O(1)Sr5Fe octahedra. The corner-sharing octahedral tilt angles range from 4-58°. In the fourth O site, O(6) is bonded to four equivalent Sr(2) and two equivalent Fe(1) atoms to form distorted OSr4Fe2 octahedra that share corners with four equivalent O(1)Sr5Fe octahedra, corners with eight equivalent O(2)Sr5Ru octahedra, faces with two equivalent O(5)Sr4Fe2 octahedra, faces with two equivalent O(4)Sr4FeRu octahedra, and faces with four equivalent O(1)Sr5Fe octahedra. The corner-sharing octahedral tilt angles range from 46-55°. In the fifth O site, O(1) is bonded to two equivalent Sr(1), three equivalent Sr(2), and one Fe(1) atom to form distorted OSr5Fe octahedra that share  a cornercorner with one O(5)Sr4Fe2 octahedra,  a cornercorner with one O(6)Sr4Fe2 octahedra, corners with two equivalent O(3)Sr4Ru2 octahedra, corners with two equivalent O(2)Sr5Ru octahedra, corners with three equivalent O(4)Sr4FeRu octahedra, corners with three equivalent O(1)Sr5Fe octahedra, edges with three equivalent O(1)Sr5Fe octahedra, edges with five equivalent O(2)Sr5Ru octahedra,  a faceface with one O(5)Sr4Fe2 octahedra,  a faceface with one O(6)Sr4Fe2 octahedra, and  a faceface with one O(4)Sr4FeRu octahedra. The corner-sharing octahedral tilt angles range from 6-63°. In the sixth O site, O(2) is bonded to two equivalent Sr(2), three equivalent Sr(1), and one Ru(1) atom to form OSr5Ru octahedra that share  a cornercorner with one O(3)Sr4Ru2 octahedra, corners with two equivalent O(5)Sr4Fe2 octahedra, corners with two equivalent O(6)Sr4Fe2 octahedra, corners with two equivalent O(1)Sr5Fe octahedra, corners with three equivalent O(4)Sr4FeRu octahedra, corners with three equivalent O(2)Sr5Ru octahedra, edges with three equivalent O(2)Sr5Ru octahedra, edges with five equivalent O(1)Sr5Fe octahedra,  a faceface with one O(4)Sr4FeRu octahedra, and  a faceface with one O(3)Sr4Ru2 octahedra. The corner-sharing octahedral tilt angles range from 3-61°. is represented by the CIF card [CIF]
data_Sr8Fe2Ru2O13
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   8.757
_cell_length_b   8.757
_cell_length_c   5.448
_cell_angle_alpha   73.701
_cell_angle_beta   73.701
_cell_angle_gamma   94.989
_symmetry_Int_Tables_number   1
_cell_volume   378.597
_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
  Sr  Sr0  1  0.776  0.474  0.631  1.0
  Sr  Sr1  1  0.020  0.732  0.869  1.0
  Sr  Sr2  1  0.268  0.980  0.131  1.0
  Sr  Sr3  1  0.526  0.224  0.369  1.0
  Sr  Sr4  1  0.732  0.020  0.869  1.0
  Sr  Sr5  1  0.980  0.268  0.131  1.0
  Sr  Sr6  1  0.224  0.526  0.369  1.0
  Sr  Sr7  1  0.474  0.776  0.631  1.0
  Fe  Fe8  1  0.873  0.873  0.375  1.0
  Fe  Fe9  1  0.127  0.127  0.625  1.0
  Ru  Ru10  1  0.380  0.380  0.864  1.0
  Ru  Ru11  1  0.620  0.620  0.136  1.0
  O  O12  1  0.981  0.295  0.638  1.0
  O  O13  1  0.216  0.536  0.875  1.0
  O  O14  1  0.464  0.784  0.125  1.0
  O  O15  1  0.705  0.019  0.362  1.0
  O  O16  1  0.536  0.216  0.875  1.0
  O  O17  1  0.784  0.464  0.125  1.0
  O  O18  1  0.019  0.705  0.362  1.0
  O  O19  1  0.295  0.981  0.638  1.0
  O  O20  1  0.500  0.500  0.500  1.0
  O  O21  1  0.736  0.736  0.747  1.0
  O  O22  1  0.000  0.000  0.000  1.0
  O  O23  1  0.264  0.264  0.253  1.0
  O  O24  1  0.000  0.000  0.500  1.0
[/CIF]
.
The material described by Sr8Ru2Fe2O13 crystallizes in the monoclinic C2/m space group. There are two inequivalent Sr sites. In the first Sr site, Sr(1) is bonded in a 7-coordinate geometry to one O(3), one O(4), two equivalent O(1), and three equivalent O(2) atoms. In the second Sr site, Sr(2) is bonded in a 8-coordinate geometry to one O(4), one O(5), one O(6), two equivalent O(2), and three equivalent O(1) atoms. Ru(1) is bonded in a square co-planar geometry to one O(3), one O(4), and two equivalent O(2) atoms. Fe(1) is bonded to one O(4), one O(5), one O(6), and two equivalent O(1) atoms to form corner-sharing FeO5 square pyramids. There are six inequivalent O sites. In the first O site, O(3) is bonded to four equivalent Sr(1) and two equivalent Ru(1) atoms to form OSr4Ru2 octahedra that share corners with two equivalent O(4)Sr4FeRu octahedra, corners with four equivalent O(2)Sr5Ru octahedra, corners with eight equivalent O(1)Sr5Fe octahedra, edges with two equivalent O(4)Sr4FeRu octahedra, and faces with four equivalent O(2)Sr5Ru octahedra. The corner-sharing octahedral tilt angles range from 4-63°. In the second O site, O(4) is bonded to two equivalent Sr(1), two equivalent Sr(2), one Ru(1), and one Fe(1) atom to form distorted OSr4FeRu octahedra that share  a cornercorner with one O(5)Sr4Fe2 octahedra,  a cornercorner with one O(3)Sr4Ru2 octahedra, corners with six equivalent O(1)Sr5Fe octahedra, corners with six equivalent O(2)Sr5Ru octahedra,  an edgeedge with one O(5)Sr4Fe2 octahedra,  an edgeedge with one O(3)Sr4Ru2 octahedra,  a faceface with one O(6)Sr4Fe2 octahedra, faces with two equivalent O(1)Sr5Fe octahedra, and faces with two equivalent O(2)Sr5Ru octahedra. The corner-sharing octahedral tilt angles range from 4-61°. In the third O site, O(5) is bonded to four equivalent Sr(2) and two equivalent Fe(1) atoms to form OSr4Fe2 octahedra that share corners with two equivalent O(4)Sr4FeRu octahedra, corners with four equivalent O(1)Sr5Fe octahedra, corners with eight equivalent O(2)Sr5Ru octahedra, edges with two equivalent O(4)Sr4FeRu octahedra, faces with two equivalent O(6)Sr4Fe2 octahedra, and faces with four equivalent O(1)Sr5Fe octahedra. The corner-sharing octahedral tilt angles range from 4-58°. In the fourth O site, O(6) is bonded to four equivalent Sr(2) and two equivalent Fe(1) atoms to form distorted OSr4Fe2 octahedra that share corners with four equivalent O(1)Sr5Fe octahedra, corners with eight equivalent O(2)Sr5Ru octahedra, faces with two equivalent O(5)Sr4Fe2 octahedra, faces with two equivalent O(4)Sr4FeRu octahedra, and faces with four equivalent O(1)Sr5Fe octahedra. The corner-sharing octahedral tilt angles range from 46-55°. In the fifth O site, O(1) is bonded to two equivalent Sr(1), three equivalent Sr(2), and one Fe(1) atom to form distorted OSr5Fe octahedra that share  a cornercorner with one O(5)Sr4Fe2 octahedra,  a cornercorner with one O(6)Sr4Fe2 octahedra, corners with two equivalent O(3)Sr4Ru2 octahedra, corners with two equivalent O(2)Sr5Ru octahedra, corners with three equivalent O(4)Sr4FeRu octahedra, corners with three equivalent O(1)Sr5Fe octahedra, edges with three equivalent O(1)Sr5Fe octahedra, edges with five equivalent O(2)Sr5Ru octahedra,  a faceface with one O(5)Sr4Fe2 octahedra,  a faceface with one O(6)Sr4Fe2 octahedra, and  a faceface with one O(4)Sr4FeRu octahedra. The corner-sharing octahedral tilt angles range from 6-63°. In the sixth O site, O(2) is bonded to two equivalent Sr(2), three equivalent Sr(1), and one Ru(1) atom to form OSr5Ru octahedra that share  a cornercorner with one O(3)Sr4Ru2 octahedra, corners with two equivalent O(5)Sr4Fe2 octahedra, corners with two equivalent O(6)Sr4Fe2 octahedra, corners with two equivalent O(1)Sr5Fe octahedra, corners with three equivalent O(4)Sr4FeRu octahedra, corners with three equivalent O(2)Sr5Ru octahedra, edges with three equivalent O(2)Sr5Ru octahedra, edges with five equivalent O(1)Sr5Fe octahedra,  a faceface with one O(4)Sr4FeRu octahedra, and  a faceface with one O(3)Sr4Ru2 octahedra. The corner-sharing octahedral tilt angles range from 3-61°. is represented by the CIF card [CIF]
data_Sr8Fe2Ru2O13
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   8.757
_cell_length_b   8.757
_cell_length_c   5.448
_cell_angle_alpha   73.701
_cell_angle_beta   73.701
_cell_angle_gamma   94.989
_symmetry_Int_Tables_number   1
_cell_volume   378.597
_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
  Sr  Sr0  1  0.776  0.474  0.631  1.0
  Sr  Sr1  1  0.020  0.732  0.869  1.0
  Sr  Sr2  1  0.268  0.980  0.131  1.0
  Sr  Sr3  1  0.526  0.224  0.369  1.0
  Sr  Sr4  1  0.732  0.020  0.869  1.0
  Sr  Sr5  1  0.980  0.268  0.131  1.0
  Sr  Sr6  1  0.224  0.526  0.369  1.0
  Sr  Sr7  1  0.474  0.776  0.631  1.0
  Fe  Fe8  1  0.873  0.873  0.375  1.0
  Fe  Fe9  1  0.127  0.127  0.625  1.0
  Ru  Ru10  1  0.380  0.380  0.864  1.0
  Ru  Ru11  1  0.620  0.620  0.136  1.0
  O  O12  1  0.981  0.295  0.638  1.0
  O  O13  1  0.216  0.536  0.875  1.0
  O  O14  1  0.464  0.784  0.125  1.0
  O  O15  1  0.705  0.019  0.362  1.0
  O  O16  1  0.536  0.216  0.875  1.0
  O  O17  1  0.784  0.464  0.125  1.0
  O  O18  1  0.019  0.705  0.362  1.0
  O  O19  1  0.295  0.981  0.638  1.0
  O  O20  1  0.500  0.500  0.500  1.0
  O  O21  1  0.736  0.736  0.747  1.0
  O  O22  1  0.000  0.000  0.000  1.0
  O  O23  1  0.264  0.264  0.253  1.0
  O  O24  1  0.000  0.000  0.500  1.0
[/CIF]
.