data_Tl2NiBr
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   5.42
_cell_length_b   5.42
_cell_length_c   3.38
_cell_angle_alpha   90.0
_cell_angle_beta   90.0
_cell_angle_gamma   91.64
_symmetry_Int_Tables_number   1
_chemical_formula_structural   Tl2NiBr
_chemical_formula_sum   'Tl2 Ni1 Br1'
_cell_volume   99.24
_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
  Tl  Tl2  1  0.89  0.94  0.69  1.0
  Tl  Tl3  1  0.89  0.06  0.69  1.0
  Ni  Ni1  1  0.0  0.0  0.0  1.0
  Br  Br0  1  0.78  0.0  0.0  1.0

data_Tl2NiBr
_symmetry_space_group_name_H-M   Pm
_cell_length_a   3.38
_cell_length_b   5.42
_cell_length_c   5.42
_cell_angle_alpha   90.0
_cell_angle_beta   90.0
_cell_angle_gamma   90.0
_symmetry_Int_Tables_number   6
_chemical_formula_structural   Tl2NiBr
_chemical_formula_sum   'Tl2 Ni1 Br1'
_cell_volume   99.28
_cell_formula_units_Z   1
loop_
 _symmetry_equiv_pos_site_id
 _symmetry_equiv_pos_as_xyz
  1  'x, y, z'
  2  '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
  Tl  Tl0  2  0.69  0.06  0.89  1.0
  Ni  Ni1  1  0.0  0.0  0.0  1.0
  Br  Br2  1  0.0  0.0  0.78  1.0

Tl Tl Ni Br
Tl Tl Ni Br 0 1 o + o 0 2 + + + 0 3 o + + 1 2 + o + 1 3 o o + 2 3 - o o 