The structure described by Na2Mg(BiO3)2 is Orthorhombic Perovskite-derived structured and crystallizes in the trigonal R-3 space group. Na(1) is bonded in a 6-coordinate geometry to six equivalent O(1) atoms. Mg(1) is bonded to six equivalent O(1) atoms to form MgO6 octahedra that share corners with six equivalent Bi(1)O6 octahedra and faces with two equivalent Bi(1)O6 octahedra. The corner-sharing octahedral tilt angles are 36°. Bi(1) is bonded to six equivalent O(1) atoms to form distorted BiO6 octahedra that share corners with three equivalent Mg(1)O6 octahedra, edges with three equivalent Bi(1)O6 octahedra, and  a faceface with one Mg(1)O6 octahedra. The corner-sharing octahedral tilt angles are 36°. O(1) is bonded in a 5-coordinate geometry to two equivalent Na(1), one Mg(1), and two equivalent Bi(1) atoms. is represented by the CIF card [CIF]
data_Na2Mg(BiO3)2
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   6.454
_cell_length_b   6.454
_cell_length_c   6.454
_cell_angle_alpha   53.811
_cell_angle_beta   53.811
_cell_angle_gamma   53.811
_symmetry_Int_Tables_number   1
_cell_volume   162.569
_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
  Na  Na0  1  0.121  0.121  0.121  1.0
  Na  Na1  1  0.879  0.879  0.879  1.0
  Mg  Mg2  1  0.500  0.500  0.500  1.0
  Bi  Bi3  1  0.318  0.318  0.318  1.0
  Bi  Bi4  1  0.682  0.682  0.682  1.0
  O  O5  1  0.114  0.678  0.457  1.0
  O  O6  1  0.678  0.457  0.114  1.0
  O  O7  1  0.457  0.114  0.678  1.0
  O  O8  1  0.886  0.322  0.543  1.0
  O  O9  1  0.543  0.886  0.322  1.0
  O  O10  1  0.322  0.543  0.886  1.0
[/CIF]
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The structure described by Na2Mg(BiO3)2 is Orthorhombic Perovskite-derived structured and crystallizes in the trigonal R-3 space group. Na(1) is bonded in a 6-coordinate geometry to six equivalent O(1) atoms. Mg(1) is bonded to six equivalent O(1) atoms to form MgO6 octahedra that share corners with six equivalent Bi(1)O6 octahedra and faces with two equivalent Bi(1)O6 octahedra. The corner-sharing octahedral tilt angles are 36°. Bi(1) is bonded to six equivalent O(1) atoms to form distorted BiO6 octahedra that share corners with three equivalent Mg(1)O6 octahedra, edges with three equivalent Bi(1)O6 octahedra, and  a faceface with one Mg(1)O6 octahedra. The corner-sharing octahedral tilt angles are 36°. O(1) is bonded in a 5-coordinate geometry to two equivalent Na(1), one Mg(1), and two equivalent Bi(1) atoms. is represented by the CIF card [CIF]
data_Na2Mg(BiO3)2
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   6.454
_cell_length_b   6.454
_cell_length_c   6.454
_cell_angle_alpha   53.811
_cell_angle_beta   53.811
_cell_angle_gamma   53.811
_symmetry_Int_Tables_number   1
_cell_volume   162.569
_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
  Na  Na0  1  0.121  0.121  0.121  1.0
  Na  Na1  1  0.879  0.879  0.879  1.0
  Mg  Mg2  1  0.500  0.500  0.500  1.0
  Bi  Bi3  1  0.318  0.318  0.318  1.0
  Bi  Bi4  1  0.682  0.682  0.682  1.0
  O  O5  1  0.114  0.678  0.457  1.0
  O  O6  1  0.678  0.457  0.114  1.0
  O  O7  1  0.457  0.114  0.678  1.0
  O  O8  1  0.886  0.322  0.543  1.0
  O  O9  1  0.543  0.886  0.322  1.0
  O  O10  1  0.322  0.543  0.886  1.0
[/CIF]
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