data_[Pm16Cu4Tc2]
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
  Tc  1.9000  1.3500  0.7417
]
_symmetry_space_group_name_H-M [C2/m]
_cell_length_a [17.6991]
_cell_length_b [5.1939]
_cell_length_c [6.9298]
_cell_angle_alpha [90.0000]
_cell_angle_beta [106.9525]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [12]
_chemical_formula_structural [Pm8Cu2Tc]
_chemical_formula_sum '[Pm16 Cu4 Tc2]'
_cell_volume [609.3594]
_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
[
  Pm  Pm0  4  0.0294  0.0000  0.7924  1
  Pm  Pm1  4  0.0907  0.5000  0.4500  1
  Pm  Pm2  4  0.1676  0.5000  0.9818  1
  Pm  Pm3  4  0.1974  0.0000  0.3241  1
  Cu  Cu4  4  0.1821  0.0000  0.7197  1
  Tc  Tc5  2  0.0000  0.5000  0.0000  1
]