The crystal structure described by MgSn3 crystallizes in the hexagonal P-6m2 space group. Mg(1) is bonded in a 6-coordinate geometry to six equivalent Sn(2) atoms. There are two inequivalent Sn sites. In the first Sn site, Sn(1) is bonded to six equivalent Sn(1) and six equivalent Sn(2) atoms to form a mixture of corner, edge, and face-sharing SnSn12 cuboctahedra. In the second Sn site, Sn(2) is bonded in a 3-coordinate geometry to three equivalent Mg(1) and three equivalent Sn(1) atoms. is represented by the CIF file [CIF]
data_MgSn3
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   3.403
_cell_length_b   3.403
_cell_length_c   10.252
_cell_angle_alpha   90.000
_cell_angle_beta   90.000
_cell_angle_gamma   120.000
_symmetry_Int_Tables_number   1
_cell_volume   102.788
_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  0.500  1.0
  Sn  Sn1  1  0.000  0.000  0.000  1.0
  Sn  Sn2  1  0.667  0.333  0.733  1.0
  Sn  Sn3  1  0.667  0.333  0.267  1.0
[/CIF]
.
The crystal structure described by MgSn3 crystallizes in the hexagonal P-6m2 space group. Mg(1) is bonded in a 6-coordinate geometry to six equivalent Sn(2) atoms. There are two inequivalent Sn sites. In the first Sn site, Sn(1) is bonded to six equivalent Sn(1) and six equivalent Sn(2) atoms to form a mixture of corner, edge, and face-sharing SnSn12 cuboctahedra. In the second Sn site, Sn(2) is bonded in a 3-coordinate geometry to three equivalent Mg(1) and three equivalent Sn(1) atoms. is represented by the CIF file [CIF]
data_MgSn3
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   3.403
_cell_length_b   3.403
_cell_length_c   10.252
_cell_angle_alpha   90.000
_cell_angle_beta   90.000
_cell_angle_gamma   120.000
_symmetry_Int_Tables_number   1
_cell_volume   102.788
_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  0.500  1.0
  Sn  Sn1  1  0.000  0.000  0.000  1.0
  Sn  Sn2  1  0.667  0.333  0.733  1.0
  Sn  Sn3  1  0.667  0.333  0.267  1.0
[/CIF]
.