The structure described by MgPr(BiO3)2 is Pb(Zr_(1-x)Ti_x)O3-derived structured and crystallizes in the tetragonal I4/m space group. 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 Pr(1)O6 octahedra. The corner-sharing octahedral tilt angles range from 0-44°. Pr(1) is bonded to two equivalent O(1) and four equivalent O(2) atoms to form PrO6 octahedra that share corners with six equivalent Mg(1)O6 octahedra. The corner-sharing octahedral tilt angles range from 0-44°. Bi(1) is bonded in a 4-coordinate geometry to four equivalent O(2) atoms. There are two inequivalent O sites. In the first O site, O(1) is bonded in a linear geometry to one Mg(1) and one Pr(1) atom. In the second O site, O(2) is bonded in a 4-coordinate geometry to one Mg(1), one Pr(1), and two equivalent Bi(1) atoms. is represented by the CIF file [CIF]
data_PrMg(BiO3)2
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   5.781
_cell_length_b   5.910
_cell_length_c   5.781
_cell_angle_alpha   60.722
_cell_angle_beta   89.998
_cell_angle_gamma   119.278
_symmetry_Int_Tables_number   1
_cell_volume   142.628
_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
  Pr  Pr0  1  0.500  0.000  0.500  1.0
  Mg  Mg1  1  0.000  0.000  0.000  1.0
  Bi  Bi2  1  0.750  0.500  0.750  1.0
  Bi  Bi3  1  0.250  0.500  0.250  1.0
  O  O4  1  0.233  0.467  0.767  1.0
  O  O5  1  0.767  0.533  0.233  1.0
  O  O6  1  0.333  0.000  0.130  1.0
  O  O7  1  0.667  0.000  0.870  1.0
  O  O8  1  0.130  0.000  0.667  1.0
  O  O9  1  0.870  0.000  0.333  1.0
[/CIF]
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The structure described by MgPr(BiO3)2 is Pb(Zr_(1-x)Ti_x)O3-derived structured and crystallizes in the tetragonal I4/m space group. 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 Pr(1)O6 octahedra. The corner-sharing octahedral tilt angles range from 0-44°. Pr(1) is bonded to two equivalent O(1) and four equivalent O(2) atoms to form PrO6 octahedra that share corners with six equivalent Mg(1)O6 octahedra. The corner-sharing octahedral tilt angles range from 0-44°. Bi(1) is bonded in a 4-coordinate geometry to four equivalent O(2) atoms. There are two inequivalent O sites. In the first O site, O(1) is bonded in a linear geometry to one Mg(1) and one Pr(1) atom. In the second O site, O(2) is bonded in a 4-coordinate geometry to one Mg(1), one Pr(1), and two equivalent Bi(1) atoms. is represented by the CIF file [CIF]
data_PrMg(BiO3)2
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   5.781
_cell_length_b   5.910
_cell_length_c   5.781
_cell_angle_alpha   60.722
_cell_angle_beta   89.998
_cell_angle_gamma   119.278
_symmetry_Int_Tables_number   1
_cell_volume   142.628
_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
  Pr  Pr0  1  0.500  0.000  0.500  1.0
  Mg  Mg1  1  0.000  0.000  0.000  1.0
  Bi  Bi2  1  0.750  0.500  0.750  1.0
  Bi  Bi3  1  0.250  0.500  0.250  1.0
  O  O4  1  0.233  0.467  0.767  1.0
  O  O5  1  0.767  0.533  0.233  1.0
  O  O6  1  0.333  0.000  0.130  1.0
  O  O7  1  0.667  0.000  0.870  1.0
  O  O8  1  0.130  0.000  0.667  1.0
  O  O9  1  0.870  0.000  0.333  1.0
[/CIF]
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