The crystal structure described by MgPm2 crystallizes in the orthorhombic Cmcm space group. Mg(1) is bonded in a body-centered cubic geometry to two equivalent Pm(2) and six equivalent Pm(1) atoms. There are two inequivalent Pm sites. In the first Pm site, Pm(1) is bonded in a 6-coordinate geometry to six equivalent Mg(1) and four equivalent Pm(2) atoms. In the second Pm site, Pm(2) is bonded in a 12-coordinate geometry to two equivalent Mg(1), four equivalent Pm(1), and six equivalent Pm(2) atoms. is represented by the Crystallographic Information File (CIF) [CIF]
data_Pm2Mg
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   8.930
_cell_length_b   8.930
_cell_length_c   5.570
_cell_angle_alpha   90.000
_cell_angle_beta   90.000
_cell_angle_gamma   155.199
_symmetry_Int_Tables_number   1
_cell_volume   186.324
_cell_formula_units_Z   2
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
  Pm  Pm0  1  0.087  0.913  0.250  1.0
  Pm  Pm1  1  0.772  0.228  0.250  1.0
  Pm  Pm2  1  0.913  0.087  0.750  1.0
  Pm  Pm3  1  0.228  0.772  0.750  1.0
  Mg  Mg4  1  0.431  0.569  0.250  1.0
  Mg  Mg5  1  0.569  0.431  0.750  1.0
[/CIF]
.
The crystal structure described by MgPm2 crystallizes in the orthorhombic Cmcm space group. Mg(1) is bonded in a body-centered cubic geometry to two equivalent Pm(2) and six equivalent Pm(1) atoms. There are two inequivalent Pm sites. In the first Pm site, Pm(1) is bonded in a 6-coordinate geometry to six equivalent Mg(1) and four equivalent Pm(2) atoms. In the second Pm site, Pm(2) is bonded in a 12-coordinate geometry to two equivalent Mg(1), four equivalent Pm(1), and six equivalent Pm(2) atoms. is represented by the Crystallographic Information File (CIF) [CIF]
data_Pm2Mg
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   8.930
_cell_length_b   8.930
_cell_length_c   5.570
_cell_angle_alpha   90.000
_cell_angle_beta   90.000
_cell_angle_gamma   155.199
_symmetry_Int_Tables_number   1
_cell_volume   186.324
_cell_formula_units_Z   2
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
  Pm  Pm0  1  0.087  0.913  0.250  1.0
  Pm  Pm1  1  0.772  0.228  0.250  1.0
  Pm  Pm2  1  0.913  0.087  0.750  1.0
  Pm  Pm3  1  0.228  0.772  0.750  1.0
  Mg  Mg4  1  0.431  0.569  0.250  1.0
  Mg  Mg5  1  0.569  0.431  0.750  1.0
[/CIF]
.