data_[Nd8Zr4Cu4Se20]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  Nd  1.1400  1.8500  1.2765
  Zr  1.3300  1.5500  0.8600
  Cu  1.9000  1.3500  0.8200
  Se  2.5500  1.1500  1.0133
]
_symmetry_space_group_name_H-M [Cmc2_1]
_cell_length_a [3.9810]
_cell_length_b [17.5390]
_cell_length_c [12.1002]
_cell_angle_alpha [90.0000]
_cell_angle_beta [90.0000]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [36]
_chemical_formula_structural [Nd2ZrCuSe5]
_chemical_formula_sum '[Nd8 Zr4 Cu4 Se20]'
_cell_volume [844.8690]
_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
[
  Nd  Nd0  4  0.0000  0.1150  0.6936  1
  Nd  Nd1  4  0.0000  0.1250  0.3188  1
  Zr  Zr2  4  0.0000  0.1862  0.0157  1
  Cu  Cu3  4  0.0000  0.4325  0.4409  1
  Se  Se4  4  0.0000  0.0406  0.0479  1
  Se  Se5  4  0.0000  0.2915  0.6727  1
  Se  Se6  4  0.0000  0.3056  0.3553  1
  Se  Se7  4  0.0000  0.3486  0.0084  1
  Se  Se8  4  0.0000  0.4967  0.7706  1
]