The structure described by MgSn2 crystallizes in the monoclinic Cm space group. There are two inequivalent Mg sites. In the first Mg site, Mg(1) is bonded in a 7-coordinate geometry to one Sn(3), two equivalent Sn(1), two equivalent Sn(2), and two equivalent Sn(4) atoms. In the second Mg site, Mg(2) is bonded in a 7-coordinate geometry to one Sn(1), two equivalent Sn(2), two equivalent Sn(3), and two equivalent Sn(4) atoms. There are four inequivalent Sn sites. In the first Sn site, Sn(1) is bonded in a 3-coordinate geometry to one Mg(2) and two equivalent Mg(1) atoms. In the second Sn site, Sn(2) is bonded in a 4-coordinate geometry to two equivalent Mg(1) and two equivalent Mg(2) atoms. In the third Sn site, Sn(3) is bonded in a 3-coordinate geometry to one Mg(1) and two equivalent Mg(2) atoms. In the fourth Sn site, Sn(4) is bonded in a 4-coordinate geometry to two equivalent Mg(1) and two equivalent Mg(2) atoms. is represented by the Crystallographic Information File (CIF) [CIF]
data_MgSn2
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   6.557
_cell_length_b   6.557
_cell_length_c   7.471
_cell_angle_alpha   80.231
_cell_angle_beta   80.231
_cell_angle_gamma   29.537
_symmetry_Int_Tables_number   1
_cell_volume   155.897
_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  0.620  0.620  0.262  1.0
  Mg  Mg1  1  0.940  0.940  0.623  1.0
  Sn  Sn2  1  0.003  0.003  0.011  1.0
  Sn  Sn3  1  0.332  0.332  0.350  1.0
  Sn  Sn4  1  0.655  0.655  0.652  1.0
  Sn  Sn5  1  0.282  0.282  0.935  1.0
[/CIF]
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The structure described by MgSn2 crystallizes in the monoclinic Cm space group. There are two inequivalent Mg sites. In the first Mg site, Mg(1) is bonded in a 7-coordinate geometry to one Sn(3), two equivalent Sn(1), two equivalent Sn(2), and two equivalent Sn(4) atoms. In the second Mg site, Mg(2) is bonded in a 7-coordinate geometry to one Sn(1), two equivalent Sn(2), two equivalent Sn(3), and two equivalent Sn(4) atoms. There are four inequivalent Sn sites. In the first Sn site, Sn(1) is bonded in a 3-coordinate geometry to one Mg(2) and two equivalent Mg(1) atoms. In the second Sn site, Sn(2) is bonded in a 4-coordinate geometry to two equivalent Mg(1) and two equivalent Mg(2) atoms. In the third Sn site, Sn(3) is bonded in a 3-coordinate geometry to one Mg(1) and two equivalent Mg(2) atoms. In the fourth Sn site, Sn(4) is bonded in a 4-coordinate geometry to two equivalent Mg(1) and two equivalent Mg(2) atoms. is represented by the Crystallographic Information File (CIF) [CIF]
data_MgSn2
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   6.557
_cell_length_b   6.557
_cell_length_c   7.471
_cell_angle_alpha   80.231
_cell_angle_beta   80.231
_cell_angle_gamma   29.537
_symmetry_Int_Tables_number   1
_cell_volume   155.897
_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  0.620  0.620  0.262  1.0
  Mg  Mg1  1  0.940  0.940  0.623  1.0
  Sn  Sn2  1  0.003  0.003  0.011  1.0
  Sn  Sn3  1  0.332  0.332  0.350  1.0
  Sn  Sn4  1  0.655  0.655  0.652  1.0
  Sn  Sn5  1  0.282  0.282  0.935  1.0
[/CIF]
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