data_[Pm12Tl8Ni4]
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
  Ni  1.9100  1.3500  0.7400
]
_symmetry_space_group_name_H-M [C2/c]
_cell_length_a [15.0225]
_cell_length_b [6.4712]
_cell_length_c [6.9068]
_cell_angle_alpha [90.0000]
_cell_angle_beta [103.6105]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [15]
_chemical_formula_structural [Pm3Tl2Ni]
_chemical_formula_sum '[Pm12 Tl8 Ni4]'
_cell_volume [652.5789]
_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  8  0.1414  0.0887  0.0905  1
  Pm  Pm1  4  0.0000  0.3832  0.7500  1
  Tl  Tl2  8  0.1722  0.3981  0.5479  1
  Ni  Ni3  4  0.0000  0.1552  0.2500  1
]