The material structure described by Mg(Bi2O5)2 crystallizes in the orthorhombic Amm2 space group. Mg(1) is bonded in a 7-coordinate geometry to one O(6), two equivalent O(3), and four equivalent O(5) atoms. There are two inequivalent Bi sites. In the first Bi site, Bi(1) is bonded in a 6-coordinate geometry to one O(1), one O(2), one O(4), one O(5), and two equivalent O(3) atoms. In the second Bi site, Bi(2) is bonded to one O(2), one O(3), one O(5), one O(6), and two equivalent O(4) atoms to form corner-sharing BiO6 octahedra. The corner-sharing octahedral tilt angles range from 30-50°. There are six inequivalent O sites. In the first O site, O(1) is bonded in a bent 150 degrees geometry to two equivalent Bi(1) atoms. In the second O site, O(2) is bonded in a water-like geometry to one Bi(1) and one Bi(2) atom. In the third O site, O(3) is bonded to one Mg(1), one Bi(2), and two equivalent Bi(1) atoms to form distorted OMgBi3 tetrahedra that share corners with three equivalent O(5)Mg2Bi2 tetrahedra, corners with three equivalent O(3)MgBi3 tetrahedra, and edges with two equivalent O(5)Mg2Bi2 tetrahedra. In the fourth O site, O(4) is bonded in a 3-coordinate geometry to one Bi(1) and two equivalent Bi(2) atoms. In the fifth O site, O(5) is bonded to two equivalent Mg(1), one Bi(1), and one Bi(2) atom to form OMg2Bi2 tetrahedra that share corners with three equivalent O(3)MgBi3 tetrahedra, corners with four equivalent O(5)Mg2Bi2 tetrahedra,  an edgeedge with one O(5)Mg2Bi2 tetrahedra, and edges with two equivalent O(3)MgBi3 tetrahedra. In the sixth O site, O(6) is bonded in a trigonal planar geometry to one Mg(1) and two equivalent Bi(2) atoms. is represented by the CIF card [CIF]
data_Mg(Bi2O5)2
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   10.731
_cell_length_b   6.048
_cell_length_c   4.153
_cell_angle_alpha   110.082
_cell_angle_beta   90.000
_cell_angle_gamma   90.000
_symmetry_Int_Tables_number   1
_cell_volume   253.166
_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  0.708  0.354  1.0
  Bi  Bi1  1  0.190  0.759  0.880  1.0
  Bi  Bi2  1  0.316  0.222  0.611  1.0
  Bi  Bi3  1  0.684  0.222  0.611  1.0
  Bi  Bi4  1  0.810  0.759  0.880  1.0
  O  O5  1  0.000  0.859  0.930  1.0
  O  O6  1  0.144  0.388  0.694  1.0
  O  O7  1  0.263  0.842  0.421  1.0
  O  O8  1  0.303  0.128  0.064  1.0
  O  O9  1  0.385  0.581  0.791  1.0
  O  O10  1  0.500  0.061  0.531  1.0
  O  O11  1  0.615  0.581  0.791  1.0
  O  O12  1  0.856  0.388  0.694  1.0
  O  O13  1  0.697  0.128  0.064  1.0
  O  O14  1  0.737  0.842  0.421  1.0
[/CIF]
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The material structure described by Mg(Bi2O5)2 crystallizes in the orthorhombic Amm2 space group. Mg(1) is bonded in a 7-coordinate geometry to one O(6), two equivalent O(3), and four equivalent O(5) atoms. There are two inequivalent Bi sites. In the first Bi site, Bi(1) is bonded in a 6-coordinate geometry to one O(1), one O(2), one O(4), one O(5), and two equivalent O(3) atoms. In the second Bi site, Bi(2) is bonded to one O(2), one O(3), one O(5), one O(6), and two equivalent O(4) atoms to form corner-sharing BiO6 octahedra. The corner-sharing octahedral tilt angles range from 30-50°. There are six inequivalent O sites. In the first O site, O(1) is bonded in a bent 150 degrees geometry to two equivalent Bi(1) atoms. In the second O site, O(2) is bonded in a water-like geometry to one Bi(1) and one Bi(2) atom. In the third O site, O(3) is bonded to one Mg(1), one Bi(2), and two equivalent Bi(1) atoms to form distorted OMgBi3 tetrahedra that share corners with three equivalent O(5)Mg2Bi2 tetrahedra, corners with three equivalent O(3)MgBi3 tetrahedra, and edges with two equivalent O(5)Mg2Bi2 tetrahedra. In the fourth O site, O(4) is bonded in a 3-coordinate geometry to one Bi(1) and two equivalent Bi(2) atoms. In the fifth O site, O(5) is bonded to two equivalent Mg(1), one Bi(1), and one Bi(2) atom to form OMg2Bi2 tetrahedra that share corners with three equivalent O(3)MgBi3 tetrahedra, corners with four equivalent O(5)Mg2Bi2 tetrahedra,  an edgeedge with one O(5)Mg2Bi2 tetrahedra, and edges with two equivalent O(3)MgBi3 tetrahedra. In the sixth O site, O(6) is bonded in a trigonal planar geometry to one Mg(1) and two equivalent Bi(2) atoms. is represented by the CIF card [CIF]
data_Mg(Bi2O5)2
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   10.731
_cell_length_b   6.048
_cell_length_c   4.153
_cell_angle_alpha   110.082
_cell_angle_beta   90.000
_cell_angle_gamma   90.000
_symmetry_Int_Tables_number   1
_cell_volume   253.166
_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  0.708  0.354  1.0
  Bi  Bi1  1  0.190  0.759  0.880  1.0
  Bi  Bi2  1  0.316  0.222  0.611  1.0
  Bi  Bi3  1  0.684  0.222  0.611  1.0
  Bi  Bi4  1  0.810  0.759  0.880  1.0
  O  O5  1  0.000  0.859  0.930  1.0
  O  O6  1  0.144  0.388  0.694  1.0
  O  O7  1  0.263  0.842  0.421  1.0
  O  O8  1  0.303  0.128  0.064  1.0
  O  O9  1  0.385  0.581  0.791  1.0
  O  O10  1  0.500  0.061  0.531  1.0
  O  O11  1  0.615  0.581  0.791  1.0
  O  O12  1  0.856  0.388  0.694  1.0
  O  O13  1  0.697  0.128  0.064  1.0
  O  O14  1  0.737  0.842  0.421  1.0
[/CIF]
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