data_[Sm8Np4Cu4Te20]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  Sm  1.1700  1.8500  1.2290
  Np  1.3600  1.7500  1.0000
  Cu  1.9000  1.3500  0.8200
  Te  2.1000  1.4000  1.2933
]
_symmetry_space_group_name_H-M [Cmc2_1]
_cell_length_a [4.2908]
_cell_length_b [19.0223]
_cell_length_c [12.9992]
_cell_angle_alpha [90.0000]
_cell_angle_beta [90.0000]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [36]
_chemical_formula_structural [Sm2NpCuTe5]
_chemical_formula_sum '[Sm8 Np4 Cu4 Te20]'
_cell_volume [1061.0094]
_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
[
  Sm  Sm0  4  0.0000  0.1087  0.6843  1
  Sm  Sm1  4  0.0000  0.1238  0.3060  1
  Np  Np2  4  0.0000  0.1948  0.0089  1
  Cu  Cu3  4  0.0000  0.4289  0.4588  1
  Te  Te4  4  0.0000  0.0428  0.0653  1
  Te  Te5  4  0.0000  0.2886  0.6754  1
  Te  Te6  4  0.0000  0.3151  0.3393  1
  Te  Te7  4  0.0000  0.3599  0.9998  1
  Te  Te8  4  0.0000  0.4996  0.7862  1
]