data_[Ce12Mg4Os4]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  Ce  1.1200  1.8500  1.0800
  Mg  1.3100  1.5000  0.8600
  Os  2.2000  1.3000  0.6730
]
_symmetry_space_group_name_H-M [C2/m]
_cell_length_a [16.8678]
_cell_length_b [3.2511]
_cell_length_c [8.9426]
_cell_angle_alpha [90.0000]
_cell_angle_beta [101.7425]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [12]
_chemical_formula_structural [Ce3MgOs]
_chemical_formula_sum '[Ce12 Mg4 Os4]'
_cell_volume [480.1386]
_cell_formula_units_Z [4]
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
[
  Ce  Ce0  4  0.0155  0.5000  0.2092  1
  Ce  Ce1  4  0.1952  0.5000  0.2875  1
  Ce  Ce2  4  0.1957  0.5000  0.8606  1
  Mg  Mg3  4  0.0996  0.0000  0.5440  1
  Os  Os4  4  0.0973  0.0000  0.0198  1
]