The material structure described by LaMg3 crystallizes in the hexagonal P6_3/mmc space group. Mg(1) is bonded in a 10-coordinate geometry to six equivalent Mg(1) and four equivalent La(1) atoms. La(1) is bonded to twelve equivalent Mg(1) atoms to form a mixture of corner and face-sharing LaMg12 cuboctahedra. is represented by the CIF file [CIF]
data_LaMg3
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   6.967
_cell_length_b   6.967
_cell_length_c   5.220
_cell_angle_alpha   90.000
_cell_angle_beta   90.000
_cell_angle_gamma   120.000
_symmetry_Int_Tables_number   1
_cell_volume   219.404
_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
  La  La0  1  0.667  0.333  0.750  1.0
  La  La1  1  0.333  0.667  0.250  1.0
  Mg  Mg2  1  0.158  0.842  0.750  1.0
  Mg  Mg3  1  0.684  0.842  0.750  1.0
  Mg  Mg4  1  0.158  0.316  0.750  1.0
  Mg  Mg5  1  0.842  0.158  0.250  1.0
  Mg  Mg6  1  0.842  0.684  0.250  1.0
  Mg  Mg7  1  0.316  0.158  0.250  1.0
[/CIF]
.
The material structure described by LaMg3 crystallizes in the hexagonal P6_3/mmc space group. Mg(1) is bonded in a 10-coordinate geometry to six equivalent Mg(1) and four equivalent La(1) atoms. La(1) is bonded to twelve equivalent Mg(1) atoms to form a mixture of corner and face-sharing LaMg12 cuboctahedra. is represented by the CIF file [CIF]
data_LaMg3
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   6.967
_cell_length_b   6.967
_cell_length_c   5.220
_cell_angle_alpha   90.000
_cell_angle_beta   90.000
_cell_angle_gamma   120.000
_symmetry_Int_Tables_number   1
_cell_volume   219.404
_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
  La  La0  1  0.667  0.333  0.750  1.0
  La  La1  1  0.333  0.667  0.250  1.0
  Mg  Mg2  1  0.158  0.842  0.750  1.0
  Mg  Mg3  1  0.684  0.842  0.750  1.0
  Mg  Mg4  1  0.158  0.316  0.750  1.0
  Mg  Mg5  1  0.842  0.158  0.250  1.0
  Mg  Mg6  1  0.842  0.684  0.250  1.0
  Mg  Mg7  1  0.316  0.158  0.250  1.0
[/CIF]
.