data_[Rb1Sr2Al1F8]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  Rb  0.8200  2.3500  1.6600
  Sr  0.9500  2.0000  1.3200
  Al  1.6100  1.2500  0.6750
  F  3.9800  0.5000  0.7050
]
_symmetry_space_group_name_H-M [P-1]
_cell_length_a [4.8621]
_cell_length_b [5.2475]
_cell_length_c [7.7715]
_cell_angle_alpha [94.7205]
_cell_angle_beta [93.2458]
_cell_angle_gamma [93.7889]
_symmetry_Int_Tables_number [2]
_chemical_formula_structural [RbSr2AlF8]
_chemical_formula_sum '[Rb1 Sr2 Al1 F8]'
_cell_volume [196.7901]
_cell_formula_units_Z [1]
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  1  0.0000  0.0000  0.5000  1.0
  Sr  Sr1  2  0.4585  0.4731  0.2376  1.0
  Al  Al2  1  0.0000  0.0000  0.0000  1.0
  F  F3  2  0.0855  0.7484  0.8263  1.0
  F  F4  2  0.1998  0.8573  0.1649  1.0
  F  F5  2  0.2941  0.2254  0.9587  1.0
  F  F6  2  0.4844  0.7404  0.5050  1.0
]