The material structure described by Bi2MgO4 is Ilmenite-like structured and crystallizes in the orthorhombic Pbcm space group. Mg(1) is bonded in a rectangular see-saw-like geometry to two equivalent O(1) and two equivalent O(3) atoms. Bi(1) is bonded to one O(3), two equivalent O(2), and three equivalent O(1) atoms to form a mixture of edge and corner-sharing BiO6 octahedra. The corner-sharing octahedral tilt angles range from 3-74°. There are three inequivalent O sites. In the first O site, O(1) is bonded to one Mg(1) and three equivalent Bi(1) atoms to form distorted OMgBi3 tetrahedra that share corners with three equivalent O(1)MgBi3 tetrahedra, corners with five equivalent O(3)Mg2Bi2 tetrahedra, and edges with two equivalent O(1)MgBi3 tetrahedra. In the second O site, O(2) is bonded in a square co-planar geometry to four equivalent Bi(1) atoms. In the third O site, O(3) is bonded to two equivalent Mg(1) and two equivalent Bi(1) atoms to form OMg2Bi2 tetrahedra that share corners with two equivalent O(3)Mg2Bi2 tetrahedra and corners with ten equivalent O(1)MgBi3 tetrahedra. is represented by the Crystallographic Information File (CIF) [CIF]
data_Mg(BiO2)2
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   3.393
_cell_length_b   11.163
_cell_length_c   11.312
_cell_angle_alpha   90.000
_cell_angle_beta   90.000
_cell_angle_gamma   90.000
_symmetry_Int_Tables_number   1
_cell_volume   428.498
_cell_formula_units_Z   4
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  0.023  0.857  0.250  1.0
  Mg  Mg1  1  0.023  0.643  0.750  1.0
  Mg  Mg2  1  0.977  0.357  0.250  1.0
  Mg  Mg3  1  0.977  0.143  0.750  1.0
  Bi  Bi4  1  0.689  0.618  0.421  1.0
  Bi  Bi5  1  0.689  0.882  0.921  1.0
  Bi  Bi6  1  0.311  0.382  0.921  1.0
  Bi  Bi7  1  0.689  0.882  0.579  1.0
  Bi  Bi8  1  0.311  0.382  0.579  1.0
  Bi  Bi9  1  0.689  0.618  0.079  1.0
  Bi  Bi10  1  0.311  0.118  0.079  1.0
  Bi  Bi11  1  0.311  0.118  0.421  1.0
  O  O12  1  0.169  0.473  0.119  1.0
  O  O13  1  0.831  0.527  0.881  1.0
  O  O14  1  0.165  0.750  0.000  1.0
  O  O15  1  0.831  0.973  0.119  1.0
  O  O16  1  0.831  0.973  0.381  1.0
  O  O17  1  0.566  0.758  0.750  1.0
  O  O18  1  0.169  0.027  0.881  1.0
  O  O19  1  0.434  0.258  0.750  1.0
  O  O20  1  0.165  0.750  0.500  1.0
  O  O21  1  0.835  0.250  0.000  1.0
  O  O22  1  0.169  0.473  0.381  1.0
  O  O23  1  0.434  0.242  0.250  1.0
  O  O24  1  0.566  0.742  0.250  1.0
  O  O25  1  0.835  0.250  0.500  1.0
  O  O26  1  0.169  0.027  0.619  1.0
  O  O27  1  0.831  0.527  0.619  1.0
[/CIF]
.
The material structure described by Bi2MgO4 is Ilmenite-like structured and crystallizes in the orthorhombic Pbcm space group. Mg(1) is bonded in a rectangular see-saw-like geometry to two equivalent O(1) and two equivalent O(3) atoms. Bi(1) is bonded to one O(3), two equivalent O(2), and three equivalent O(1) atoms to form a mixture of edge and corner-sharing BiO6 octahedra. The corner-sharing octahedral tilt angles range from 3-74°. There are three inequivalent O sites. In the first O site, O(1) is bonded to one Mg(1) and three equivalent Bi(1) atoms to form distorted OMgBi3 tetrahedra that share corners with three equivalent O(1)MgBi3 tetrahedra, corners with five equivalent O(3)Mg2Bi2 tetrahedra, and edges with two equivalent O(1)MgBi3 tetrahedra. In the second O site, O(2) is bonded in a square co-planar geometry to four equivalent Bi(1) atoms. In the third O site, O(3) is bonded to two equivalent Mg(1) and two equivalent Bi(1) atoms to form OMg2Bi2 tetrahedra that share corners with two equivalent O(3)Mg2Bi2 tetrahedra and corners with ten equivalent O(1)MgBi3 tetrahedra. is represented by the Crystallographic Information File (CIF) [CIF]
data_Mg(BiO2)2
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   3.393
_cell_length_b   11.163
_cell_length_c   11.312
_cell_angle_alpha   90.000
_cell_angle_beta   90.000
_cell_angle_gamma   90.000
_symmetry_Int_Tables_number   1
_cell_volume   428.498
_cell_formula_units_Z   4
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  0.023  0.857  0.250  1.0
  Mg  Mg1  1  0.023  0.643  0.750  1.0
  Mg  Mg2  1  0.977  0.357  0.250  1.0
  Mg  Mg3  1  0.977  0.143  0.750  1.0
  Bi  Bi4  1  0.689  0.618  0.421  1.0
  Bi  Bi5  1  0.689  0.882  0.921  1.0
  Bi  Bi6  1  0.311  0.382  0.921  1.0
  Bi  Bi7  1  0.689  0.882  0.579  1.0
  Bi  Bi8  1  0.311  0.382  0.579  1.0
  Bi  Bi9  1  0.689  0.618  0.079  1.0
  Bi  Bi10  1  0.311  0.118  0.079  1.0
  Bi  Bi11  1  0.311  0.118  0.421  1.0
  O  O12  1  0.169  0.473  0.119  1.0
  O  O13  1  0.831  0.527  0.881  1.0
  O  O14  1  0.165  0.750  0.000  1.0
  O  O15  1  0.831  0.973  0.119  1.0
  O  O16  1  0.831  0.973  0.381  1.0
  O  O17  1  0.566  0.758  0.750  1.0
  O  O18  1  0.169  0.027  0.881  1.0
  O  O19  1  0.434  0.258  0.750  1.0
  O  O20  1  0.165  0.750  0.500  1.0
  O  O21  1  0.835  0.250  0.000  1.0
  O  O22  1  0.169  0.473  0.381  1.0
  O  O23  1  0.434  0.242  0.250  1.0
  O  O24  1  0.566  0.742  0.250  1.0
  O  O25  1  0.835  0.250  0.500  1.0
  O  O26  1  0.169  0.027  0.619  1.0
  O  O27  1  0.831  0.527  0.619  1.0
[/CIF]
.