data_[Ta4Ti4Nb4]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  Ta  1.5000  1.4500  0.8200
  Ti  1.5400  1.4000  0.8517
  Nb  1.6000  1.4500  0.8200
]
_symmetry_space_group_name_H-M [Cmcm]
_cell_length_a [4.6542]
_cell_length_b [9.8321]
_cell_length_c [4.6914]
_cell_angle_alpha [90.0000]
_cell_angle_beta [90.0000]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [63]
_chemical_formula_structural [TaTiNb]
_chemical_formula_sum '[Ta4 Ti4 Nb4]'
_cell_volume [214.6791]
_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
[
  Ta  Ta0  4  0.0000  0.2566  0.7500  1.0
  Ti  Ti1  4  0.0000  0.4199  0.2500  1.0
  Nb  Nb2  4  0.0000  0.0887  0.2500  1.0
]