data_Li2SiSe
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   2.8
_cell_length_b   5.24
_cell_length_c   4.58
_cell_angle_alpha   90.0
_cell_angle_beta   90.0
_cell_angle_gamma   90.0
_symmetry_Int_Tables_number   1
_chemical_formula_structural   Li2SiSe
_chemical_formula_sum   'Li2 Si1 Se1'
_cell_volume   67.19
_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  0.0  0.62  0.15  1.0
  Li  Li1  1  0.0  0.0  0.3  1.0
  Si  Si3  1  0.4  0.0  0.03  1.0
  Se  Se2  1  0.4  0.62  0.4  1.0

data_Li2SiSe
_symmetry_space_group_name_H-M   P1
_cell_length_a   2.8
_cell_length_b   4.58
_cell_length_c   5.24
_cell_angle_alpha   90.0
_cell_angle_beta   90.0
_cell_angle_gamma   90.0
_symmetry_Int_Tables_number   1
_chemical_formula_structural   Li2SiSe
_chemical_formula_sum   'Li2 Si1 Se1'
_cell_volume   67.19
_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  0.0  0.7  0.0  1.0
  Li  Li1  1  0.0  0.85  0.38  1.0
  Si  Si2  1  0.6  0.97  0.0  1.0
  Se  Se3  1  0.6  0.6  0.38  1.0

Li Li Si Se
Li Li Si Se 0 3 o o o 1 2 o o o 