The crystal structure described by MgBi5 crystallizes in the trigonal R32 space group. Mg(1) is bonded to six equivalent Bi(1) and six equivalent Bi(2) atoms to form a mixture of corner and edge-sharing MgBi12 cuboctahedra. There are two inequivalent Bi sites. In the first Bi site, Bi(1) is bonded in a distorted bent 150 degrees geometry to two equivalent Mg(1) and four equivalent Bi(2) atoms. In the second Bi site, Bi(2) is bonded in a 12-coordinate geometry to three equivalent Mg(1), three equivalent Bi(2), and six equivalent Bi(1) atoms. is represented by the CIF file [CIF]
data_MgBi5
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   6.668
_cell_length_b   6.668
_cell_length_c   6.668
_cell_angle_alpha   54.637
_cell_angle_beta   54.637
_cell_angle_gamma   54.637
_symmetry_Int_Tables_number   1
_cell_volume   183.464
_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  0.000  0.000  0.000  1.0
  Bi  Bi1  1  0.500  0.143  0.857  1.0
  Bi  Bi2  1  0.857  0.500  0.143  1.0
  Bi  Bi3  1  0.143  0.857  0.500  1.0
  Bi  Bi4  1  0.329  0.329  0.329  1.0
  Bi  Bi5  1  0.671  0.671  0.671  1.0
[/CIF]
.
The crystal structure described by MgBi5 crystallizes in the trigonal R32 space group. Mg(1) is bonded to six equivalent Bi(1) and six equivalent Bi(2) atoms to form a mixture of corner and edge-sharing MgBi12 cuboctahedra. There are two inequivalent Bi sites. In the first Bi site, Bi(1) is bonded in a distorted bent 150 degrees geometry to two equivalent Mg(1) and four equivalent Bi(2) atoms. In the second Bi site, Bi(2) is bonded in a 12-coordinate geometry to three equivalent Mg(1), three equivalent Bi(2), and six equivalent Bi(1) atoms. is represented by the CIF file [CIF]
data_MgBi5
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   6.668
_cell_length_b   6.668
_cell_length_c   6.668
_cell_angle_alpha   54.637
_cell_angle_beta   54.637
_cell_angle_gamma   54.637
_symmetry_Int_Tables_number   1
_cell_volume   183.464
_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  0.000  0.000  0.000  1.0
  Bi  Bi1  1  0.500  0.143  0.857  1.0
  Bi  Bi2  1  0.857  0.500  0.143  1.0
  Bi  Bi3  1  0.143  0.857  0.500  1.0
  Bi  Bi4  1  0.329  0.329  0.329  1.0
  Bi  Bi5  1  0.671  0.671  0.671  1.0
[/CIF]
.