data_[Pm2Ho2Cu8]
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
  Cu  1.9000  1.3500  0.8200
]
_symmetry_space_group_name_H-M [Imm2]
_cell_length_a [4.3102]
_cell_length_b [6.9329]
_cell_length_c [7.3759]
_cell_angle_alpha [90.0000]
_cell_angle_beta [90.0000]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [44]
_chemical_formula_structural [PmHoCu4]
_chemical_formula_sum '[Pm2 Ho2 Cu8]'
_cell_volume [220.4086]
_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  2  0.0000  0.0000  0.5443  1
  Ho  Ho1  2  0.0000  0.5000  0.4602  1
  Cu  Cu2  4  0.0000  0.1960  0.1636  1
  Cu  Cu3  4  0.0000  0.2993  0.8342  1
]