data_[Nb4Ni4As4]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  Nb  1.6000  1.4500  0.8200
  Ni  1.9100  1.3500  0.7400
  As  2.1800  1.1500  0.6600
]
_symmetry_space_group_name_H-M [Pnma]
_cell_length_a [6.3332]
_cell_length_b [3.7448]
_cell_length_c [7.3041]
_cell_angle_alpha [90.0000]
_cell_angle_beta [90.0000]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [62]
_chemical_formula_structural [NbNiAs]
_chemical_formula_sum '[Nb4 Ni4 As4]'
_cell_volume [173.2252]
_cell_formula_units_Z [4]
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  4  0.0175  0.2500  0.1652  1.0
  Ni  Ni1  4  0.1595  0.2500  0.5732  1.0
  As  As2  4  0.2128  0.7500  0.3807  1.0
]