data_Nb2TlCl
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   2.93
_cell_length_b   3.35
_cell_length_c   7.66
_cell_angle_alpha   90.0
_cell_angle_beta   90.0
_cell_angle_gamma   90.0
_symmetry_Int_Tables_number   1
_chemical_formula_structural   Nb2TlCl
_chemical_formula_sum   'Nb2 Tl1 Cl1'
_cell_volume   75.08
_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  Nb1  1  0.46  0.67  0.71  1.0
  Nb  Nb2  1  0.46  0.67  0.94  1.0
  Tl  Tl3  1  0.0  0.0  0.83  1.0
  Cl  Cl0  1  0.0  0.0  0.0  1.0

data_Nb2TlCl
_symmetry_space_group_name_H-M   P1
_cell_length_a   2.93
_cell_length_b   3.35
_cell_length_c   7.66
_cell_angle_alpha   90.0
_cell_angle_beta   90.0
_cell_angle_gamma   90.0
_symmetry_Int_Tables_number   1
_chemical_formula_structural   Nb2TlCl
_chemical_formula_sum   'Nb2 Tl1 Cl1'
_cell_volume   75.08
_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  1  0.46  0.67  0.71  1.0
  Nb  Nb1  1  0.46  0.67  0.94  1.0
  Tl  Tl2  1  0.0  0.0  0.83  1.0
  Cl  Cl3  1  0.0  0.0  0.0  1.0

Nb Nb Tl Cl
Nb Nb Tl Cl 0 2 o + o 0 2 + + o 0 1 o o o 1 2 o + o 1 2 + + o 1 3 o + + 1 3 + + + 2 3 o o + 