data_[Ce4Er4Ge4]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  Ce  1.1200  1.8500  1.0800
  Er  1.2400  1.7500  1.0300
  Ge  2.0100  1.2500  0.7700
]
_symmetry_space_group_name_H-M [I4/mmm]
_cell_length_a [4.1622]
_cell_length_b [4.1622]
_cell_length_c [16.7573]
_cell_angle_alpha [90.0000]
_cell_angle_beta [90.0000]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [139]
_chemical_formula_structural [CeErGe]
_chemical_formula_sum '[Ce4 Er4 Ge4]'
_cell_volume [290.3011]
_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  0.0000  0.5000  0.0000  1
  Er  Er1  4  0.0000  0.0000  0.1801  1
  Ge  Ge2  4  0.0000  0.0000  0.3581  1
]