data_Ta2NbTl
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   5.21
_cell_length_b   5.21
_cell_length_c   5.3
_cell_angle_alpha   96.07
_cell_angle_beta   96.07
_cell_angle_gamma   33.02
_symmetry_Int_Tables_number   1
_chemical_formula_structural   Ta2NbTl
_chemical_formula_sum   'Ta2 Nb1 Tl1'
_cell_volume   77.84
_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  Ta1  1  0.38  0.0  0.27  1.0
  Ta  Ta2  1  0.02  0.0  0.0  1.0
  Nb  Nb0  1  0.0  0.0  0.0  1.0
  Tl  Tl3  1  0.7  0.0  0.64  1.0

data_Ta2NbTl
_symmetry_space_group_name_H-M   P1
_cell_length_a   2.96
_cell_length_b   5.21
_cell_length_c   5.3
_cell_angle_alpha   96.07
_cell_angle_beta   90.0
_cell_angle_gamma   106.51
_symmetry_Int_Tables_number   1
_chemical_formula_structural   Ta2NbTl
_chemical_formula_sum   'Ta2 Nb1 Tl1'
_cell_volume   77.84
_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  0.62  0.73  1.0
  Ta  Ta1  1  0.0  0.98  1.0  1.0
  Nb  Nb2  1  0.0  0.0  0.0  1.0
  Tl  Tl3  1  0.0  0.3  0.36  1.0

Ta Ta Nb Tl