data_[Rb2Na4Pb4F14]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  Rb  0.8200  2.3500  1.6600
  Na  0.9300  1.8000  1.1600
  Pb  2.3300  1.8000  1.1225
  F  3.9800  0.5000  0.7050
]
_symmetry_space_group_name_H-M [Imm2]
_cell_length_a [4.9127]
_cell_length_b [20.0047]
_cell_length_c [4.7392]
_cell_angle_alpha [90.0000]
_cell_angle_beta [90.0000]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [44]
_chemical_formula_structural [RbNa2Pb2F7]
_chemical_formula_sum '[Rb2 Na4 Pb4 F14]'
_cell_volume [465.7547]
_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  0.0000  0.0000  0.9746  1.0
  Na  Na1  4  0.0000  0.2435  0.4824  1.0
  Pb  Pb2  4  0.0000  0.3851  0.9878  1.0
  F  F3  4  0.0000  0.1188  0.4949  1.0
  F  F4  4  0.0000  0.2661  0.9807  1.0
  F  F5  4  0.0000  0.3581  0.4618  1.0
  F  F6  2  0.0000  0.5000  0.2106  1.0
]