The material structure described by Mg2Sb crystallizes in the monoclinic C2/m space group. There are two inequivalent Mg sites. In the first Mg site, Mg(1) is bonded in a 3-coordinate geometry to three equivalent Sb(1) atoms. In the second Mg site, Mg(2) is bonded in a 5-coordinate geometry to five equivalent Sb(1) atoms. Sb(1) is bonded in a 8-coordinate geometry to three equivalent Mg(1) and five equivalent Mg(2) atoms. is represented by the Crystallographic Information File (CIF) [CIF]
data_Mg2Sb
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   6.151
_cell_length_b   6.151
_cell_length_c   7.508
_cell_angle_alpha   67.357
_cell_angle_beta   67.357
_cell_angle_gamma   34.579
_symmetry_Int_Tables_number   1
_cell_volume   147.554
_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
  Mg  Mg0  1  0.135  0.135  0.963  1.0
  Mg  Mg1  1  0.552  0.552  0.677  1.0
  Mg  Mg2  1  0.448  0.448  0.323  1.0
  Mg  Mg3  1  0.865  0.865  0.037  1.0
  Sb  Sb4  1  0.823  0.823  0.679  1.0
  Sb  Sb5  1  0.177  0.177  0.321  1.0
[/CIF]
.
The material structure described by Mg2Sb crystallizes in the monoclinic C2/m space group. There are two inequivalent Mg sites. In the first Mg site, Mg(1) is bonded in a 3-coordinate geometry to three equivalent Sb(1) atoms. In the second Mg site, Mg(2) is bonded in a 5-coordinate geometry to five equivalent Sb(1) atoms. Sb(1) is bonded in a 8-coordinate geometry to three equivalent Mg(1) and five equivalent Mg(2) atoms. is represented by the Crystallographic Information File (CIF) [CIF]
data_Mg2Sb
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   6.151
_cell_length_b   6.151
_cell_length_c   7.508
_cell_angle_alpha   67.357
_cell_angle_beta   67.357
_cell_angle_gamma   34.579
_symmetry_Int_Tables_number   1
_cell_volume   147.554
_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
  Mg  Mg0  1  0.135  0.135  0.963  1.0
  Mg  Mg1  1  0.552  0.552  0.677  1.0
  Mg  Mg2  1  0.448  0.448  0.323  1.0
  Mg  Mg3  1  0.865  0.865  0.037  1.0
  Sb  Sb4  1  0.823  0.823  0.679  1.0
  Sb  Sb5  1  0.177  0.177  0.321  1.0
[/CIF]
.