The structure described by MgIn3 is beta Cu3Ti-like structured and crystallizes in the hexagonal P6_3/mmc space group. Mg(1) is bonded to twelve equivalent In(1) atoms to form MgIn12 cuboctahedra that share corners with six equivalent Mg(1)In12 cuboctahedra, corners with twelve equivalent In(1)Mg4In8 cuboctahedra, edges with eighteen equivalent In(1)Mg4In8 cuboctahedra, faces with eight equivalent Mg(1)In12 cuboctahedra, and faces with twelve equivalent In(1)Mg4In8 cuboctahedra. In(1) is bonded to four equivalent Mg(1) and eight equivalent In(1) atoms to form distorted InMg4In8 cuboctahedra that share corners with four equivalent Mg(1)In12 cuboctahedra, corners with fourteen equivalent In(1)Mg4In8 cuboctahedra, edges with six equivalent Mg(1)In12 cuboctahedra, edges with twelve equivalent In(1)Mg4In8 cuboctahedra, faces with four equivalent Mg(1)In12 cuboctahedra, and faces with sixteen equivalent In(1)Mg4In8 cuboctahedra. is represented by the CIF file [CIF]
data_MgIn3
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   6.460
_cell_length_b   6.460
_cell_length_c   5.448
_cell_angle_alpha   90.000
_cell_angle_beta   90.000
_cell_angle_gamma   120.000
_symmetry_Int_Tables_number   1
_cell_volume   196.891
_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  0.250  1.0
  Mg  Mg1  1  0.333  0.667  0.750  1.0
  In  In2  1  0.167  0.335  0.250  1.0
  In  In3  1  0.167  0.833  0.250  1.0
  In  In4  1  0.665  0.833  0.250  1.0
  In  In5  1  0.335  0.167  0.750  1.0
  In  In6  1  0.833  0.167  0.750  1.0
  In  In7  1  0.833  0.665  0.750  1.0
[/CIF]
.
The structure described by MgIn3 is beta Cu3Ti-like structured and crystallizes in the hexagonal P6_3/mmc space group. Mg(1) is bonded to twelve equivalent In(1) atoms to form MgIn12 cuboctahedra that share corners with six equivalent Mg(1)In12 cuboctahedra, corners with twelve equivalent In(1)Mg4In8 cuboctahedra, edges with eighteen equivalent In(1)Mg4In8 cuboctahedra, faces with eight equivalent Mg(1)In12 cuboctahedra, and faces with twelve equivalent In(1)Mg4In8 cuboctahedra. In(1) is bonded to four equivalent Mg(1) and eight equivalent In(1) atoms to form distorted InMg4In8 cuboctahedra that share corners with four equivalent Mg(1)In12 cuboctahedra, corners with fourteen equivalent In(1)Mg4In8 cuboctahedra, edges with six equivalent Mg(1)In12 cuboctahedra, edges with twelve equivalent In(1)Mg4In8 cuboctahedra, faces with four equivalent Mg(1)In12 cuboctahedra, and faces with sixteen equivalent In(1)Mg4In8 cuboctahedra. is represented by the CIF file [CIF]
data_MgIn3
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   6.460
_cell_length_b   6.460
_cell_length_c   5.448
_cell_angle_alpha   90.000
_cell_angle_beta   90.000
_cell_angle_gamma   120.000
_symmetry_Int_Tables_number   1
_cell_volume   196.891
_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  0.250  1.0
  Mg  Mg1  1  0.333  0.667  0.750  1.0
  In  In2  1  0.167  0.335  0.250  1.0
  In  In3  1  0.167  0.833  0.250  1.0
  In  In4  1  0.665  0.833  0.250  1.0
  In  In5  1  0.335  0.167  0.750  1.0
  In  In6  1  0.833  0.167  0.750  1.0
  In  In7  1  0.833  0.665  0.750  1.0
[/CIF]
.