data_[Mg12Cd6]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  Mg  1.3100  1.5000  0.8600
  Cd  1.6900  1.5500  1.0900
]
_symmetry_space_group_name_H-M [R32]
_cell_length_a [5.4123]
_cell_length_b [5.4123]
_cell_length_c [15.6768]
_cell_angle_alpha [90.0000]
_cell_angle_beta [90.0000]
_cell_angle_gamma [120.0000]
_symmetry_Int_Tables_number [155]
_chemical_formula_structural [Mg2Cd]
_chemical_formula_sum '[Mg12 Cd6]'
_cell_volume [397.6931]
_cell_formula_units_Z [6]
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  9  0.0000  0.6678  0.0000  1.0
  Mg  Mg1  3  0.0000  0.0000  0.5000  1.0
  Cd  Cd2  6  0.0000  0.0000  0.1658  1.0
]