data_[Mg2Cd2I8]
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
  I  2.6600  1.4000  1.2733
]
_symmetry_space_group_name_H-M [C2/m]
_cell_length_a [16.8965]
_cell_length_b [4.2455]
_cell_length_c [7.4103]
_cell_angle_alpha [90.0000]
_cell_angle_beta [115.8112]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [12]
_chemical_formula_structural [MgCdI4]
_chemical_formula_sum '[Mg2 Cd2 I8]'
_cell_volume [478.5327]
_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  2  0.0000  0.0000  0.0000  1
  Cd  Cd1  2  0.0000  0.5000  0.5000  1
  I  I2  4  0.1111  0.5000  0.9506  1
  I  I3  4  0.1128  0.0000  0.4379  1
]