data_[Pm2Cu3Hg1Ge4]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  Pm  1.1300  1.8500  1.1100
  Cu  1.9000  1.3500  0.8200
  Hg  2.0000  1.5000  1.2450
  Ge  2.0100  1.2500  0.7700
]
_symmetry_space_group_name_H-M [P-4m2]
_cell_length_a [4.2763]
_cell_length_b [4.2763]
_cell_length_c [10.3810]
_cell_angle_alpha [90.0000]
_cell_angle_beta [90.0000]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [115]
_chemical_formula_structural [Pm2Cu3HgGe4]
_chemical_formula_sum '[Pm2 Cu3 Hg1 Ge4]'
_cell_volume [189.8347]
_cell_formula_units_Z [1]
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  2  0.0000  0.5000  0.7594  1
  Cu  Cu1  2  0.0000  0.5000  0.1219  1
  Cu  Cu2  1  0.0000  0.0000  0.5000  1
  Hg  Hg3  1  0.5000  0.5000  0.5000  1
  Ge  Ge4  2  0.0000  0.5000  0.3492  1
  Ge  Ge5  1  0.0000  0.0000  0.0000  1
  Ge  Ge6  1  0.5000  0.5000  0.0000  1
]