data_BeTlCu2
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   2.99
_cell_length_b   3.98
_cell_length_c   5.02
_cell_angle_alpha   90.0
_cell_angle_beta   90.17
_cell_angle_gamma   90.0
_symmetry_Int_Tables_number   1
_chemical_formula_structural   BeTlCu2
_chemical_formula_sum   'Be1 Tl1 Cu2'
_cell_volume   59.83
_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
  Be  Be0  1  0.41  0.0  0.0  1.0
  Tl  Tl3  1  0.77  0.99  0.68  1.0
  Cu  Cu1  1  0.38  0.99  0.14  1.0
  Cu  Cu2  1  0.91  0.0  0.71  1.0

data_BeTlCu2
_symmetry_space_group_name_H-M   Pm
_cell_length_a   2.99
_cell_length_b   3.98
_cell_length_c   5.02
_cell_angle_alpha   90.0
_cell_angle_beta   90.17
_cell_angle_gamma   90.0
_symmetry_Int_Tables_number   6
_chemical_formula_structural   BeTlCu2
_chemical_formula_sum   'Be1 Tl1 Cu2'
_cell_volume   59.83
_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
  Be  Be0  1  0.41  0.0  0.0  1.0
  Tl  Tl1  1  0.77  0.0  0.68  1.0
  Cu  Cu2  1  0.38  0.0  0.14  1.0
  Cu  Cu3  1  0.91  0.0  0.71  1.0

Be Tl Cu Cu