data_LiFe2Cu
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   8.99
_cell_length_b   8.99
_cell_length_c   8.99
_cell_angle_alpha   16.11
_cell_angle_beta   16.11
_cell_angle_gamma   16.11
_symmetry_Int_Tables_number   1
_chemical_formula_structural   LiFe2Cu
_chemical_formula_sum   'Li1 Fe2 Cu1'
_cell_volume   48.75
_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  Li3  1  0.0  0.0  0.0  1.0
  Fe  Fe1  1  0.0  0.0  0.02  1.0
  Fe  Fe2  1  0.0  0.0  0.59  1.0
  Cu  Cu0  1  0.0  0.0  0.3  1.0

data_LiFe2Cu
_symmetry_space_group_name_H-M   Cm
_cell_length_a   4.36
_cell_length_b   2.52
_cell_length_c   8.99
_cell_angle_alpha   90.0
_cell_angle_beta   99.31
_cell_angle_gamma   90.0
_symmetry_Int_Tables_number   8
_chemical_formula_structural   LiFe2Cu
_chemical_formula_sum   'Li2 Fe4 Cu2'
_cell_volume   97.5
_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
  Li  Li0  2  0.0  0.0  0.0  1.0
  Fe  Fe1  2  -0.0  0.0  0.98  1.0
  Fe  Fe2  2  -0.0  0.0  0.41  1.0
  Cu  Cu3  2  0.0  0.0  0.7  1.0

Li Fe Fe Cu