data_Sr2LiCu
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   3.78
_cell_length_b   3.78
_cell_length_c   8.7
_cell_angle_alpha   90.0
_cell_angle_beta   90.0
_cell_angle_gamma   92.31
_symmetry_Int_Tables_number   1
_chemical_formula_structural   Sr2LiCu
_chemical_formula_sum   'Sr2 Li1 Cu1'
_cell_volume   124.53
_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
  Sr  Sr2  1  0.62  0.0  0.55  1.0
  Sr  Sr3  1  0.0  0.0  0.83  1.0
  Li  Li1  1  0.0  0.0  0.83  1.0
  Cu  Cu0  1  0.62  0.0  0.84  1.0

data_Sr2LiCu
_symmetry_space_group_name_H-M   Pm
_cell_length_a   3.78
_cell_length_b   3.78
_cell_length_c   8.7
_cell_angle_alpha   90.0
_cell_angle_beta   90.0
_cell_angle_gamma   90.0
_symmetry_Int_Tables_number   6
_chemical_formula_structural   Sr2LiCu
_chemical_formula_sum   'Sr2 Li1 Cu1'
_cell_volume   124.63
_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
  Sr  Sr0  1  0.0  0.0  0.83  1.0
  Sr  Sr1  1  0.62  0.0  0.55  1.0
  Li  Li2  1  0.0  0.0  0.83  1.0
  Cu  Cu3  1  0.62  0.0  0.84  1.0

Sr Sr Li Cu 0 2 + o o 0 1 + o o 0 3 o o o 1 2 o o o 1 3 - o o 2 3 - o o 