data_[Li4Pm4Cu2Ge8]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  Li  0.9800  1.4500  0.9000
  Pm  1.1300  1.8500  1.1100
  Cu  1.9000  1.3500  0.8200
  Ge  2.0100  1.2500  0.7700
]
_symmetry_space_group_name_H-M [I4/mmm]
_cell_length_a [6.3087]
_cell_length_b [6.3087]
_cell_length_c [8.7146]
_cell_angle_alpha [90.0000]
_cell_angle_beta [90.0000]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [139]
_chemical_formula_structural [Li2Pm2CuGe4]
_chemical_formula_sum '[Li4 Pm4 Cu2 Ge8]'
_cell_volume [346.8359]
_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
[
  Li  Li0  4  0.0000  0.0000  0.2898  1
  Pm  Pm1  4  0.0000  0.5000  0.2500  1
  Cu  Cu2  2  0.0000  0.0000  0.0000  1
  Ge  Ge3  8  0.2230  0.2230  0.5000  1
]