data_[Pm4Ho12Si8]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  Pm  1.1300  1.8500  1.1100
  Ho  1.2300  1.7500  1.0410
  Si  1.9000  1.1000  0.5400
]
_symmetry_space_group_name_H-M [C2/m]
_cell_length_a [17.0043]
_cell_length_b [4.2968]
_cell_length_c [9.1575]
_cell_angle_alpha [90.0000]
_cell_angle_beta [112.9439]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [12]
_chemical_formula_structural [PmHo3Si2]
_chemical_formula_sum '[Pm4 Ho12 Si8]'
_cell_volume [616.1591]
_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  0.1152  0.0000  0.1349  1
  Ho  Ho1  4  0.0476  0.0000  0.6968  1
  Ho  Ho2  4  0.1520  0.5000  0.4810  1
  Ho  Ho3  4  0.1908  0.5000  0.8845  1
  Si  Si4  4  0.0121  0.5000  0.8760  1
  Si  Si5  4  0.2363  0.0000  0.7130  1
]