data_[Pm8Tl4Ge4]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  Pm  1.1300  1.8500  1.1100
  Tl  1.6200  1.9000  1.3325
  Ge  2.0100  1.2500  0.7700
]
_symmetry_space_group_name_H-M [Cmcm]
_cell_length_a [4.0589]
_cell_length_b [25.1848]
_cell_length_c [4.6187]
_cell_angle_alpha [90.0000]
_cell_angle_beta [90.0000]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [63]
_chemical_formula_structural [Pm2TlGe]
_chemical_formula_sum '[Pm8 Tl4 Ge4]'
_cell_volume [472.1353]
_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
[
  Pm  Pm0  4  0.0000  0.0757  0.7500  1
  Pm  Pm1  4  0.0000  0.3096  0.7500  1
  Tl  Tl2  4  0.0000  0.4593  0.7500  1
  Ge  Ge3  4  0.0000  0.1898  0.7500  1
]