data_InSi2Se
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   3.91
_cell_length_b   4.86
_cell_length_c   4.59
_cell_angle_alpha   90.0
_cell_angle_beta   93.48
_cell_angle_gamma   90.0
_symmetry_Int_Tables_number   1
_chemical_formula_structural   InSi2Se
_chemical_formula_sum   'In1 Si2 Se1'
_cell_volume   87.19
_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
  In  In0  1  0.82  0.0  0.29  1.0
  Si  Si2  1  0.71  0.43  0.83  1.0
  Si  Si3  1  0.92  0.43  0.76  1.0
  Se  Se1  1  0.0  0.0  0.0  1.0

data_InSi2Se
_symmetry_space_group_name_H-M   P1
_cell_length_a   3.91
_cell_length_b   4.59
_cell_length_c   4.86
_cell_angle_alpha   90.0
_cell_angle_beta   90.0
_cell_angle_gamma   93.48
_symmetry_Int_Tables_number   1
_chemical_formula_structural   InSi2Se
_chemical_formula_sum   'In1 Si2 Se1'
_cell_volume   87.19
_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
  In  In0  1  0.18  0.71  0.0  1.0
  Si  Si1  1  0.08  0.24  0.57  1.0
  Si  Si2  1  0.29  0.17  0.57  1.0
  Se  Se3  1  0.0  0.0  0.0  1.0

In Si Si Se