data_[La4As2F6]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  La  1.1000  1.9500  1.1720
  As  2.1800  1.1500  0.6600
  F  3.9800  0.5000  0.7050
]
_symmetry_space_group_name_H-M [Amm2]
_cell_length_a [21.0289]
_cell_length_b [3.9842]
_cell_length_c [13.1890]
_cell_angle_alpha [90.0000]
_cell_angle_beta [90.0000]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [38]
_chemical_formula_structural [La2AsF3]
_chemical_formula_sum '[La4 As2 F6]'
_cell_volume [1105.0182]
_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
[
  La  La0  4  0.4155  0.0000  0.7356  1
  As  As1  2  0.5000  0.0000  0.1332  1
  F  F2  4  0.3567  0.0000  0.2679  1
  F  F3  2  0.5000  0.0000  0.8468  1
]