The compound described by Sr2MgFeO4 crystallizes in the tetragonal I-4m2 space group. Sr(1) is bonded in a 6-coordinate geometry to two equivalent O(2) and four equivalent O(1) atoms. Mg(1) is bonded to four equivalent O(1) atoms to form corner-sharing MgO4 tetrahedra. Fe(1) is bonded to four equivalent O(2) atoms to form corner-sharing FeO4 tetrahedra. There are two inequivalent O sites. In the first O site, O(1) is bonded in a distorted bent 120 degrees geometry to four equivalent Sr(1) and two equivalent Mg(1) atoms. In the second O site, O(2) is bonded to two equivalent Sr(1) and two equivalent Fe(1) atoms to form corner-sharing OSr2Fe2 tetrahedra. is represented by the Crystallographic Information File (CIF) [CIF]
data_Sr2MgFeO4
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   3.490
_cell_length_b   3.490
_cell_length_c   10.048
_cell_angle_alpha   100.000
_cell_angle_beta   100.000
_cell_angle_gamma   90.000
_symmetry_Int_Tables_number   1
_cell_volume   118.611
_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  0.628  0.628  0.256  1.0
  Sr  Sr1  1  0.372  0.372  0.744  1.0
  Mg  Mg2  1  0.250  0.750  0.500  1.0
  Fe  Fe3  1  0.000  0.000  0.000  1.0
  O  O4  1  0.807  0.807  0.613  1.0
  O  O5  1  0.193  0.193  0.387  1.0
  O  O6  1  0.048  0.548  0.097  1.0
  O  O7  1  0.452  0.952  0.903  1.0
[/CIF]
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The compound described by Sr2MgFeO4 crystallizes in the tetragonal I-4m2 space group. Sr(1) is bonded in a 6-coordinate geometry to two equivalent O(2) and four equivalent O(1) atoms. Mg(1) is bonded to four equivalent O(1) atoms to form corner-sharing MgO4 tetrahedra. Fe(1) is bonded to four equivalent O(2) atoms to form corner-sharing FeO4 tetrahedra. There are two inequivalent O sites. In the first O site, O(1) is bonded in a distorted bent 120 degrees geometry to four equivalent Sr(1) and two equivalent Mg(1) atoms. In the second O site, O(2) is bonded to two equivalent Sr(1) and two equivalent Fe(1) atoms to form corner-sharing OSr2Fe2 tetrahedra. is represented by the Crystallographic Information File (CIF) [CIF]
data_Sr2MgFeO4
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   3.490
_cell_length_b   3.490
_cell_length_c   10.048
_cell_angle_alpha   100.000
_cell_angle_beta   100.000
_cell_angle_gamma   90.000
_symmetry_Int_Tables_number   1
_cell_volume   118.611
_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  0.628  0.628  0.256  1.0
  Sr  Sr1  1  0.372  0.372  0.744  1.0
  Mg  Mg2  1  0.250  0.750  0.500  1.0
  Fe  Fe3  1  0.000  0.000  0.000  1.0
  O  O4  1  0.807  0.807  0.613  1.0
  O  O5  1  0.193  0.193  0.387  1.0
  O  O6  1  0.048  0.548  0.097  1.0
  O  O7  1  0.452  0.952  0.903  1.0
[/CIF]
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