The crystal structure described by MgSn2 crystallizes in the hexagonal P-62m space group. Mg(1) is bonded to three equivalent Mg(1), three equivalent Sn(2), and six equivalent Sn(1) atoms to form a mixture of distorted face, corner, and edge-sharing MgMg3Sn9 cuboctahedra. There are two inequivalent Sn sites. In the first Sn site, Sn(1) is bonded in a 4-coordinate geometry to four equivalent Mg(1) atoms. In the second Sn site, Sn(2) is bonded in a distorted hexagonal planar geometry to six equivalent Mg(1) atoms. is represented by the Crystallographic Information File (CIF) [CIF]
data_MgSn2
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   5.656
_cell_length_b   5.656
_cell_length_c   5.417
_cell_angle_alpha   90.000
_cell_angle_beta   90.000
_cell_angle_gamma   120.000
_symmetry_Int_Tables_number   1
_cell_volume   150.088
_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  0.667  0.333  0.500  1.0
  Mg  Mg1  1  0.333  0.667  0.500  1.0
  Sn  Sn2  1  0.653  0.000  0.000  1.0
  Sn  Sn3  1  0.347  0.347  0.000  1.0
  Sn  Sn4  1  0.000  0.653  0.000  1.0
  Sn  Sn5  1  0.000  0.000  0.500  1.0
[/CIF]
.
The crystal structure described by MgSn2 crystallizes in the hexagonal P-62m space group. Mg(1) is bonded to three equivalent Mg(1), three equivalent Sn(2), and six equivalent Sn(1) atoms to form a mixture of distorted face, corner, and edge-sharing MgMg3Sn9 cuboctahedra. There are two inequivalent Sn sites. In the first Sn site, Sn(1) is bonded in a 4-coordinate geometry to four equivalent Mg(1) atoms. In the second Sn site, Sn(2) is bonded in a distorted hexagonal planar geometry to six equivalent Mg(1) atoms. is represented by the Crystallographic Information File (CIF) [CIF]
data_MgSn2
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   5.656
_cell_length_b   5.656
_cell_length_c   5.417
_cell_angle_alpha   90.000
_cell_angle_beta   90.000
_cell_angle_gamma   120.000
_symmetry_Int_Tables_number   1
_cell_volume   150.088
_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  0.667  0.333  0.500  1.0
  Mg  Mg1  1  0.333  0.667  0.500  1.0
  Sn  Sn2  1  0.653  0.000  0.000  1.0
  Sn  Sn3  1  0.347  0.347  0.000  1.0
  Sn  Sn4  1  0.000  0.653  0.000  1.0
  Sn  Sn5  1  0.000  0.000  0.500  1.0
[/CIF]
.