data_[Rb4Fe4Te6]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  Rb  0.8200  2.3500  1.6600
  Fe  1.8300  1.4000  0.8525
  Te  2.1000  1.4000  1.2933
]
_symmetry_space_group_name_H-M [Cm]
_cell_length_a [15.2729]
_cell_length_b [5.7110]
_cell_length_c [19.1038]
_cell_angle_alpha [90.0000]
_cell_angle_beta [90.0000]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [8]
_chemical_formula_structural [Rb2Fe2Te3]
_chemical_formula_sum '[Rb4 Fe4 Te6]'
_cell_volume [1666.2914]
_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
[
  Rb  Rb0  2  0.3630  0.0000  0.6001  1
  Rb  Rb1  2  0.3853  0.5000  0.3997  1
  Fe  Fe2  4  0.0922  0.2945  0.4968  1
  Te  Te3  2  0.0104  0.0000  0.5765  1
  Te  Te4  2  0.0321  0.5000  0.3854  1
  Te  Te5  2  0.2310  0.5000  0.5448  1
]