data_[Na2Sr1Ni1F8]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  Na  0.9300  1.8000  1.1600
  Sr  0.9500  2.0000  1.3200
  Ni  1.9100  1.3500  0.7400
  F  3.9800  0.5000  0.7050
]
_symmetry_space_group_name_H-M [P2/m]
_cell_length_a [4.3474]
_cell_length_b [7.1642]
_cell_length_c [5.4169]
_cell_angle_alpha [90.0000]
_cell_angle_beta [95.7836]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [10]
_chemical_formula_structural [Na2SrNiF8]
_chemical_formula_sum '[Na2 Sr1 Ni1 F8]'
_cell_volume [167.8532]
_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
[
  Na  Na0  2  0.5000  0.2410  0.5000  1
  Sr  Sr1  1  0.0000  0.5000  0.0000  1
  Ni  Ni2  1  0.0000  0.0000  0.0000  1
  F  F3  4  0.1276  0.1858  0.8054  1
  F  F4  2  0.3453  0.0000  0.2114  1
  F  F5  2  0.4978  0.5000  0.2518  1
]