data_[Na4Np6Tl2Te12]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  Na  0.9300  1.8000  1.1600
  Np  1.3600  1.7500  1.0000
  Tl  1.6200  1.9000  1.3325
  Te  2.1000  1.4000  1.2933
]
_symmetry_space_group_name_H-M [C2/m]
_cell_length_a [20.2750]
_cell_length_b [4.4839]
_cell_length_c [9.3474]
_cell_angle_alpha [90.0000]
_cell_angle_beta [106.6292]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [12]
_chemical_formula_structural [Na2Np3TlTe6]
_chemical_formula_sum '[Na4 Np6 Tl2 Te12]'
_cell_volume [814.2320]
_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
[
  Na  Na0  4  0.1673  0.0000  0.3316  1
  Np  Np1  4  0.1666  0.0000  0.8291  1
  Np  Np2  2  0.0000  0.5000  0.5000  1
  Tl  Tl3  2  0.0000  0.5000  0.0000  1
  Te  Te4  4  0.0059  0.0000  0.7322  1
  Te  Te5  4  0.1622  0.5000  0.5906  1
  Te  Te6  4  0.1731  0.5000  0.0690  1
]