data_La2TlCu
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   5.46
_cell_length_b   5.46
_cell_length_c   3.89
_cell_angle_alpha   90.0
_cell_angle_beta   90.0
_cell_angle_gamma   90.0
_symmetry_Int_Tables_number   1
_chemical_formula_structural   La2TlCu
_chemical_formula_sum   'La2 Tl1 Cu1'
_cell_volume   115.97
_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
  La  La1  1  0.0  0.73  0.95  1.0
  La  La2  1  0.73  0.0  0.95  1.0
  Tl  Tl3  1  0.73  0.73  0.0  1.0
  Cu  Cu0  1  0.0  0.0  0.0  1.0

data_La2TlCu
_symmetry_space_group_name_H-M   Cm
_cell_length_a   7.72
_cell_length_b   7.72
_cell_length_c   3.89
_cell_angle_alpha   90.0
_cell_angle_beta   90.0
_cell_angle_gamma   90.0
_symmetry_Int_Tables_number   8
_chemical_formula_structural   La2TlCu
_chemical_formula_sum   'La4 Tl2 Cu2'
_cell_volume   231.95
_cell_formula_units_Z   2
loop_
 _symmetry_equiv_pos_site_id
 _symmetry_equiv_pos_as_xyz
  1  'x, y, z'
  2  'x, -y, z'
  3  'x+1/2, y+1/2, z'
  4  'x+1/2, -y+1/2, 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
  La  La0  4  0.36  0.36  0.95  1.0
  Tl  Tl1  2  0.23  0.5  0.0  1.0
  Cu  Cu2  2  0.0  0.0  0.0  1.0

La La Tl Cu
La La Tl Cu 0 2 - o + 0 3 o + + 1 2 o - + 1 3 + o + 