data_Ta2NbPt
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   2.83
_cell_length_b   2.83
_cell_length_c   8.89
_cell_angle_alpha   90.0
_cell_angle_beta   90.0
_cell_angle_gamma   101.49
_symmetry_Int_Tables_number   1
_chemical_formula_structural   Ta2NbPt
_chemical_formula_sum   'Ta2 Nb1 Pt1'
_cell_volume   69.92
_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
  Ta  Ta2  1  0.0  0.0  0.11  1.0
  Ta  Ta3  1  0.79  0.0  0.68  1.0
  Nb  Nb0  1  0.0  0.0  0.34  1.0
  Pt  Pt1  1  0.79  0.0  0.21  1.0

data_Ta2NbPt
_symmetry_space_group_name_H-M   P1
_cell_length_a   2.83
_cell_length_b   2.83
_cell_length_c   8.89
_cell_angle_alpha   90.0
_cell_angle_beta   90.0
_cell_angle_gamma   101.49
_symmetry_Int_Tables_number   1
_chemical_formula_structural   Ta2NbPt
_chemical_formula_sum   'Ta2 Nb1 Pt1'
_cell_volume   69.92
_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
  Ta  Ta0  1  0.0  0.0  0.11  1.0
  Ta  Ta1  1  0.79  0.0  0.68  1.0
  Nb  Nb2  1  0.0  0.0  0.34  1.0
  Pt  Pt3  1  0.79  0.0  0.21  1.0

Ta Ta Nb Pt
Ta Ta Nb Pt 0 3 - o o 1 1 o + o 1 1 + o o 1 2 + o o 2 3 - o o 