The structure described by Sr2MgTiO4 crystallizes in the tetragonal I-4m2 space group. There are two inequivalent Sr sites. In the first Sr site, Sr(1) is bonded in a 8-coordinate geometry to four equivalent O(1) and four equivalent O(2) atoms. In the second Sr site, Sr(1) is bonded in a 8-coordinate geometry to four equivalent O(1) and four equivalent O(2) atoms. Mg(1) is bonded to four equivalent O(1) atoms to form distorted corner-sharing MgO4 tetrahedra. Ti(1) is bonded in a rectangular see-saw-like geometry to four equivalent O(2) atoms. 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 four Sr(1,1) and two equivalent Ti(1) atoms to form a mixture of distorted corner, face, and edge-sharing OSr4Ti2 octahedra. The corner-sharing octahedral tilt angles are 1°. is represented by the CIF file [CIF]
data_Sr2MgTiO4
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   3.834
_cell_length_b   3.834
_cell_length_c   8.951
_cell_angle_alpha   102.368
_cell_angle_beta   102.368
_cell_angle_gamma   90.000
_symmetry_Int_Tables_number   1
_cell_volume   125.417
_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  0.611  0.611  0.222  1.0
  Sr  Sr1  1  0.389  0.389  0.778  1.0
  Mg  Mg2  1  0.250  0.750  0.500  1.0
  Ti  Ti3  1  0.000  0.000  0.000  1.0
  O  O4  1  0.808  0.808  0.616  1.0
  O  O5  1  0.192  0.192  0.384  1.0
  O  O6  1  0.999  0.499  0.998  1.0
  O  O7  1  0.501  0.001  0.002  1.0
[/CIF]
.
The structure described by Sr2MgTiO4 crystallizes in the tetragonal I-4m2 space group. There are two inequivalent Sr sites. In the first Sr site, Sr(1) is bonded in a 8-coordinate geometry to four equivalent O(1) and four equivalent O(2) atoms. In the second Sr site, Sr(1) is bonded in a 8-coordinate geometry to four equivalent O(1) and four equivalent O(2) atoms. Mg(1) is bonded to four equivalent O(1) atoms to form distorted corner-sharing MgO4 tetrahedra. Ti(1) is bonded in a rectangular see-saw-like geometry to four equivalent O(2) atoms. 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 four Sr(1,1) and two equivalent Ti(1) atoms to form a mixture of distorted corner, face, and edge-sharing OSr4Ti2 octahedra. The corner-sharing octahedral tilt angles are 1°. is represented by the CIF file [CIF]
data_Sr2MgTiO4
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   3.834
_cell_length_b   3.834
_cell_length_c   8.951
_cell_angle_alpha   102.368
_cell_angle_beta   102.368
_cell_angle_gamma   90.000
_symmetry_Int_Tables_number   1
_cell_volume   125.417
_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  0.611  0.611  0.222  1.0
  Sr  Sr1  1  0.389  0.389  0.778  1.0
  Mg  Mg2  1  0.250  0.750  0.500  1.0
  Ti  Ti3  1  0.000  0.000  0.000  1.0
  O  O4  1  0.808  0.808  0.616  1.0
  O  O5  1  0.192  0.192  0.384  1.0
  O  O6  1  0.999  0.499  0.998  1.0
  O  O7  1  0.501  0.001  0.002  1.0
[/CIF]
.