data_[Rb4Na4Sr2F14]
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
  Sr  0.9500  2.0000  1.3200
  F  3.9800  0.5000  0.7050
]
_symmetry_space_group_name_H-M [C2/m]
_cell_length_a [6.0518]
_cell_length_b [5.9450]
_cell_length_c [11.7155]
_cell_angle_alpha [90.0000]
_cell_angle_beta [102.5808]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [12]
_chemical_formula_structural [Rb2Na2SrF7]
_chemical_formula_sum '[Rb4 Na4 Sr2 F14]'
_cell_volume [411.3752]
_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  4  0.1926  0.0000  0.3677  1.0
  Na  Na1  4  0.1140  0.5000  0.1986  1.0
  Sr  Sr2  2  0.0000  0.0000  0.0000  1.0
  F  F3  8  0.1581  0.2515  0.8549  1.0
  F  F4  4  0.2062  0.5000  0.3918  1.0
  F  F5  2  0.0000  0.5000  0.0000  1.0
]