The material structure described by Sr2MgTeO6 crystallizes in the monoclinic C2/m space group. Sr(1) is bonded to four equivalent O(1) and eight equivalent O(2) atoms to form distorted SrO12 cuboctahedra that share corners with twelve equivalent Sr(1)O12 cuboctahedra, faces with six equivalent Sr(1)O12 cuboctahedra, faces with four equivalent Mg(1)O6 octahedra, and faces with four equivalent Te(1)O6 octahedra. Mg(1) is bonded to two equivalent O(1) and four equivalent O(2) atoms to form MgO6 octahedra that share corners with six equivalent Te(1)O6 octahedra and faces with eight equivalent Sr(1)O12 cuboctahedra. The corner-sharing octahedral tilt angles range from 11-15°. Te(1) is bonded to two equivalent O(1) and four equivalent O(2) atoms to form TeO6 octahedra that share corners with six equivalent Mg(1)O6 octahedra and faces with eight equivalent Sr(1)O12 cuboctahedra. The corner-sharing octahedral tilt angles range from 11-15°. There are two inequivalent O sites. In the first O site, O(1) is bonded in a 2-coordinate geometry to four equivalent Sr(1), one Mg(1), and one Te(1) atom. In the second O site, O(2) is bonded in a 6-coordinate geometry to four equivalent Sr(1), one Mg(1), and one Te(1) atom. is represented by the CIF file [CIF]
data_Sr2MgTeO6
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   5.602
_cell_length_b   5.602
_cell_length_c   5.631
_cell_angle_alpha   59.764
_cell_angle_beta   59.764
_cell_angle_gamma   59.927
_symmetry_Int_Tables_number   1
_cell_volume   124.438
_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  0.250  0.250  0.748  1.0
  Sr  Sr1  1  0.750  0.750  0.252  1.0
  Mg  Mg2  1  0.000  0.000  0.500  1.0
  Te  Te3  1  0.500  0.500  0.000  1.0
  O  O4  1  0.741  0.741  0.805  1.0
  O  O5  1  0.259  0.259  0.195  1.0
  O  O6  1  0.718  0.235  0.263  1.0
  O  O7  1  0.765  0.282  0.737  1.0
  O  O8  1  0.282  0.765  0.737  1.0
  O  O9  1  0.235  0.718  0.263  1.0
[/CIF]
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The material structure described by Sr2MgTeO6 crystallizes in the monoclinic C2/m space group. Sr(1) is bonded to four equivalent O(1) and eight equivalent O(2) atoms to form distorted SrO12 cuboctahedra that share corners with twelve equivalent Sr(1)O12 cuboctahedra, faces with six equivalent Sr(1)O12 cuboctahedra, faces with four equivalent Mg(1)O6 octahedra, and faces with four equivalent Te(1)O6 octahedra. Mg(1) is bonded to two equivalent O(1) and four equivalent O(2) atoms to form MgO6 octahedra that share corners with six equivalent Te(1)O6 octahedra and faces with eight equivalent Sr(1)O12 cuboctahedra. The corner-sharing octahedral tilt angles range from 11-15°. Te(1) is bonded to two equivalent O(1) and four equivalent O(2) atoms to form TeO6 octahedra that share corners with six equivalent Mg(1)O6 octahedra and faces with eight equivalent Sr(1)O12 cuboctahedra. The corner-sharing octahedral tilt angles range from 11-15°. There are two inequivalent O sites. In the first O site, O(1) is bonded in a 2-coordinate geometry to four equivalent Sr(1), one Mg(1), and one Te(1) atom. In the second O site, O(2) is bonded in a 6-coordinate geometry to four equivalent Sr(1), one Mg(1), and one Te(1) atom. is represented by the CIF file [CIF]
data_Sr2MgTeO6
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   5.602
_cell_length_b   5.602
_cell_length_c   5.631
_cell_angle_alpha   59.764
_cell_angle_beta   59.764
_cell_angle_gamma   59.927
_symmetry_Int_Tables_number   1
_cell_volume   124.438
_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  0.250  0.250  0.748  1.0
  Sr  Sr1  1  0.750  0.750  0.252  1.0
  Mg  Mg2  1  0.000  0.000  0.500  1.0
  Te  Te3  1  0.500  0.500  0.000  1.0
  O  O4  1  0.741  0.741  0.805  1.0
  O  O5  1  0.259  0.259  0.195  1.0
  O  O6  1  0.718  0.235  0.263  1.0
  O  O7  1  0.765  0.282  0.737  1.0
  O  O8  1  0.282  0.765  0.737  1.0
  O  O9  1  0.235  0.718  0.263  1.0
[/CIF]
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