The compound described by Mg(SnO2)4 is beta indium sulfide-derived structured and crystallizes in the trigonal R-3m space group. Mg(1) is bonded to six equivalent O(1) atoms to form MgO6 octahedra that share corners with six equivalent Sn(2)O6 octahedra and edges with six equivalent Sn(1)O6 octahedra. The corner-sharing octahedral tilt angles are 12°. There are two inequivalent Sn sites. In the first Sn site, Sn(1) is bonded to two equivalent O(2) and four equivalent O(1) atoms to form SnO6 octahedra that share edges with two equivalent Mg(1)O6 octahedra, edges with two equivalent Sn(2)O6 octahedra, and edges with four equivalent Sn(1)O6 octahedra. In the second Sn site, Sn(2) is bonded to six equivalent O(1) atoms to form SnO6 octahedra that share corners with six equivalent Mg(1)O6 octahedra and edges with six equivalent Sn(1)O6 octahedra. The corner-sharing octahedral tilt angles are 12°. There are two inequivalent O sites. In the first O site, O(1) is bonded in a rectangular see-saw-like geometry to one Mg(1), one Sn(2), and two equivalent Sn(1) atoms. In the second O site, O(2) is bonded in a distorted trigonal non-coplanar geometry to three equivalent Sn(1) atoms. is represented by the Crystallographic Information File (CIF) [CIF]
data_Mg(SnO2)4
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   6.341
_cell_length_b   6.341
_cell_length_c   6.341
_cell_angle_alpha   62.990
_cell_angle_beta   62.990
_cell_angle_gamma   62.990
_symmetry_Int_Tables_number   1
_cell_volume   192.237
_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
  Mg  Mg0  1  0.500  0.500  0.500  1.0
  Sn  Sn1  1  0.000  0.500  0.500  1.0
  Sn  Sn2  1  0.500  0.000  0.500  1.0
  Sn  Sn3  1  0.500  0.500  0.000  1.0
  Sn  Sn4  1  0.000  0.000  0.000  1.0
  O  O5  1  0.303  0.736  0.736  1.0
  O  O6  1  0.264  0.264  0.697  1.0
  O  O7  1  0.697  0.264  0.264  1.0
  O  O8  1  0.264  0.697  0.264  1.0
  O  O9  1  0.264  0.264  0.264  1.0
  O  O10  1  0.736  0.736  0.736  1.0
  O  O11  1  0.736  0.303  0.736  1.0
  O  O12  1  0.736  0.736  0.303  1.0
[/CIF]
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The compound described by Mg(SnO2)4 is beta indium sulfide-derived structured and crystallizes in the trigonal R-3m space group. Mg(1) is bonded to six equivalent O(1) atoms to form MgO6 octahedra that share corners with six equivalent Sn(2)O6 octahedra and edges with six equivalent Sn(1)O6 octahedra. The corner-sharing octahedral tilt angles are 12°. There are two inequivalent Sn sites. In the first Sn site, Sn(1) is bonded to two equivalent O(2) and four equivalent O(1) atoms to form SnO6 octahedra that share edges with two equivalent Mg(1)O6 octahedra, edges with two equivalent Sn(2)O6 octahedra, and edges with four equivalent Sn(1)O6 octahedra. In the second Sn site, Sn(2) is bonded to six equivalent O(1) atoms to form SnO6 octahedra that share corners with six equivalent Mg(1)O6 octahedra and edges with six equivalent Sn(1)O6 octahedra. The corner-sharing octahedral tilt angles are 12°. There are two inequivalent O sites. In the first O site, O(1) is bonded in a rectangular see-saw-like geometry to one Mg(1), one Sn(2), and two equivalent Sn(1) atoms. In the second O site, O(2) is bonded in a distorted trigonal non-coplanar geometry to three equivalent Sn(1) atoms. is represented by the Crystallographic Information File (CIF) [CIF]
data_Mg(SnO2)4
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   6.341
_cell_length_b   6.341
_cell_length_c   6.341
_cell_angle_alpha   62.990
_cell_angle_beta   62.990
_cell_angle_gamma   62.990
_symmetry_Int_Tables_number   1
_cell_volume   192.237
_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
  Mg  Mg0  1  0.500  0.500  0.500  1.0
  Sn  Sn1  1  0.000  0.500  0.500  1.0
  Sn  Sn2  1  0.500  0.000  0.500  1.0
  Sn  Sn3  1  0.500  0.500  0.000  1.0
  Sn  Sn4  1  0.000  0.000  0.000  1.0
  O  O5  1  0.303  0.736  0.736  1.0
  O  O6  1  0.264  0.264  0.697  1.0
  O  O7  1  0.697  0.264  0.264  1.0
  O  O8  1  0.264  0.697  0.264  1.0
  O  O9  1  0.264  0.264  0.264  1.0
  O  O10  1  0.736  0.736  0.736  1.0
  O  O11  1  0.736  0.303  0.736  1.0
  O  O12  1  0.736  0.736  0.303  1.0
[/CIF]
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