data_Li2MgTl
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   3.16
_cell_length_b   4.68
_cell_length_c   6.0
_cell_angle_alpha   90.0
_cell_angle_beta   105.23
_cell_angle_gamma   90.0
_symmetry_Int_Tables_number   1
_chemical_formula_structural   Li2MgTl
_chemical_formula_sum   'Li2 Mg1 Tl1'
_cell_volume   85.82
_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
  Li  Li0  1  0.34  0.34  0.28  1.0
  Li  Li1  1  0.24  0.34  0.51  1.0
  Mg  Mg2  1  0.0  0.0  0.0  1.0
  Tl  Tl3  1  0.21  0.0  0.9  1.0

data_Li2MgTl
_symmetry_space_group_name_H-M   P1
_cell_length_a   3.16
_cell_length_b   4.68
_cell_length_c   6.0
_cell_angle_alpha   90.0
_cell_angle_beta   105.23
_cell_angle_gamma   90.0
_symmetry_Int_Tables_number   1
_chemical_formula_structural   Li2MgTl
_chemical_formula_sum   'Li2 Mg1 Tl1'
_cell_volume   85.82
_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
  Li  Li0  1  0.24  0.34  0.51  1.0
  Li  Li1  1  0.34  0.34  0.28  1.0
  Mg  Mg2  1  0.0  0.0  0.0  1.0
  Tl  Tl3  1  0.21  0.0  0.9  1.0

Li Li Mg Tl
Li Li Mg Tl 0 1 o o o 2 3 o o - 