The structure described by Sr3Fe2O5 crystallizes in the monoclinic C2/m space group. There are two inequivalent Sr sites. In the first Sr site, Sr(1) is bonded to two equivalent O(2) and five equivalent O(1) atoms to form a mixture of distorted face, corner, and edge-sharing SrO7 pentagonal bipyramids. In the second Sr site, Sr(2) is bonded in a body-centered cubic geometry to four equivalent O(2) and four equivalent O(3) atoms. Fe(1) is bonded in a square co-planar geometry to one O(1), one O(3), and two equivalent O(2) atoms. There are three inequivalent O sites. In the first O site, O(1) is bonded to five equivalent Sr(1) and one Fe(1) atom to form OSr5Fe octahedra that share  a cornercorner with one O(3)Sr4Fe2 octahedra, corners with four equivalent O(1)Sr5Fe octahedra, corners with six equivalent O(2)Sr4Fe2 octahedra, edges with eight equivalent O(1)Sr5Fe octahedra, and faces with two equivalent O(2)Sr4Fe2 octahedra. The corner-sharing octahedral tilt angles range from 0-61°. In the second O site, O(2) is bonded to two equivalent Sr(1), two equivalent Sr(2), and two equivalent Fe(1) atoms to form OSr4Fe2 octahedra that share corners with four equivalent O(2)Sr4Fe2 octahedra, corners with four equivalent O(3)Sr4Fe2 octahedra, corners with six equivalent O(1)Sr5Fe octahedra, edges with three equivalent O(2)Sr4Fe2 octahedra, faces with two equivalent O(3)Sr4Fe2 octahedra, and faces with two equivalent O(1)Sr5Fe octahedra. The corner-sharing octahedral tilt angles range from 0-63°. In the third O site, O(3) is bonded to four equivalent Sr(2) and two equivalent Fe(1) atoms to form OSr4Fe2 octahedra that share corners with two equivalent O(1)Sr5Fe octahedra, corners with four equivalent O(3)Sr4Fe2 octahedra, corners with eight equivalent O(2)Sr4Fe2 octahedra, edges with four equivalent O(3)Sr4Fe2 octahedra, and faces with four equivalent O(2)Sr4Fe2 octahedra. The corner-sharing octahedral tilt angles range from 0-63°. is represented by the CIF card [CIF]
data_Sr3Fe2O5
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   3.549
_cell_length_b   3.924
_cell_length_c   10.640
_cell_angle_alpha   100.620
_cell_angle_beta   99.609
_cell_angle_gamma   90.003
_symmetry_Int_Tables_number   1
_cell_volume   143.518
_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  0.314  0.314  0.628  1.0
  Sr  Sr1  1  0.686  0.686  0.372  1.0
  Sr  Sr2  1  0.500  0.500  0.000  1.0
  Fe  Fe3  1  0.096  0.097  0.192  1.0
  Fe  Fe4  1  0.904  0.903  0.808  1.0
  O  O5  1  0.192  0.192  0.383  1.0
  O  O6  1  0.808  0.808  0.617  1.0
  O  O7  1  0.095  0.595  0.190  1.0
  O  O8  1  0.905  0.405  0.810  1.0
  O  O9  1  0.000  0.000  0.000  1.0
[/CIF]
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The structure described by Sr3Fe2O5 crystallizes in the monoclinic C2/m space group. There are two inequivalent Sr sites. In the first Sr site, Sr(1) is bonded to two equivalent O(2) and five equivalent O(1) atoms to form a mixture of distorted face, corner, and edge-sharing SrO7 pentagonal bipyramids. In the second Sr site, Sr(2) is bonded in a body-centered cubic geometry to four equivalent O(2) and four equivalent O(3) atoms. Fe(1) is bonded in a square co-planar geometry to one O(1), one O(3), and two equivalent O(2) atoms. There are three inequivalent O sites. In the first O site, O(1) is bonded to five equivalent Sr(1) and one Fe(1) atom to form OSr5Fe octahedra that share  a cornercorner with one O(3)Sr4Fe2 octahedra, corners with four equivalent O(1)Sr5Fe octahedra, corners with six equivalent O(2)Sr4Fe2 octahedra, edges with eight equivalent O(1)Sr5Fe octahedra, and faces with two equivalent O(2)Sr4Fe2 octahedra. The corner-sharing octahedral tilt angles range from 0-61°. In the second O site, O(2) is bonded to two equivalent Sr(1), two equivalent Sr(2), and two equivalent Fe(1) atoms to form OSr4Fe2 octahedra that share corners with four equivalent O(2)Sr4Fe2 octahedra, corners with four equivalent O(3)Sr4Fe2 octahedra, corners with six equivalent O(1)Sr5Fe octahedra, edges with three equivalent O(2)Sr4Fe2 octahedra, faces with two equivalent O(3)Sr4Fe2 octahedra, and faces with two equivalent O(1)Sr5Fe octahedra. The corner-sharing octahedral tilt angles range from 0-63°. In the third O site, O(3) is bonded to four equivalent Sr(2) and two equivalent Fe(1) atoms to form OSr4Fe2 octahedra that share corners with two equivalent O(1)Sr5Fe octahedra, corners with four equivalent O(3)Sr4Fe2 octahedra, corners with eight equivalent O(2)Sr4Fe2 octahedra, edges with four equivalent O(3)Sr4Fe2 octahedra, and faces with four equivalent O(2)Sr4Fe2 octahedra. The corner-sharing octahedral tilt angles range from 0-63°. is represented by the CIF card [CIF]
data_Sr3Fe2O5
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   3.549
_cell_length_b   3.924
_cell_length_c   10.640
_cell_angle_alpha   100.620
_cell_angle_beta   99.609
_cell_angle_gamma   90.003
_symmetry_Int_Tables_number   1
_cell_volume   143.518
_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  0.314  0.314  0.628  1.0
  Sr  Sr1  1  0.686  0.686  0.372  1.0
  Sr  Sr2  1  0.500  0.500  0.000  1.0
  Fe  Fe3  1  0.096  0.097  0.192  1.0
  Fe  Fe4  1  0.904  0.903  0.808  1.0
  O  O5  1  0.192  0.192  0.383  1.0
  O  O6  1  0.808  0.808  0.617  1.0
  O  O7  1  0.095  0.595  0.190  1.0
  O  O8  1  0.905  0.405  0.810  1.0
  O  O9  1  0.000  0.000  0.000  1.0
[/CIF]
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