data_[Nb3Al1Cl1]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  Nb  1.6000  1.4500  0.8200
  Al  1.6100  1.2500  0.6750
  Cl  3.1600  1.0000  0.7800
]
_symmetry_space_group_name_H-M [Pm-3m]
_cell_length_a [4.5546]
_cell_length_b [4.5546]
_cell_length_c [4.5546]
_cell_angle_alpha [90.0000]
_cell_angle_beta [90.0000]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [221]
_chemical_formula_structural [Nb3AlCl]
_chemical_formula_sum '[Nb3 Al1 Cl1]'
_cell_volume [94.4847]
_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
[
  Nb  Nb0  3  0.0000  0.0000  0.5000  1
  Al  Al1  1  0.5000  0.5000  0.5000  1
  Cl  Cl2  1  0.0000  0.0000  0.0000  1
]