data_[Be1Nb1Cl2F1]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  Be  1.5700  1.0500  0.5900
  Nb  1.6000  1.4500  0.8200
  Cl  3.1600  1.0000  0.7800
  F  3.9800  0.5000  0.7050
]
_symmetry_space_group_name_H-M [P4/mmm]
_cell_length_a [5.2789]
_cell_length_b [5.2789]
_cell_length_c [2.9719]
_cell_angle_alpha [90.0000]
_cell_angle_beta [90.0000]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [123]
_chemical_formula_structural [BeNbCl2F]
_chemical_formula_sum '[Be1 Nb1 Cl2 F1]'
_cell_volume [82.8173]
_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
[
  Be  Be0  1  0.0000  0.0000  0.5000  1
  Nb  Nb1  1  0.5000  0.5000  0.5000  1
  Cl  Cl2  2  0.0000  0.5000  0.0000  1
  F  F3  1  0.0000  0.0000  0.0000  1
]