data_InSe
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   6.32
_cell_length_b   6.32
_cell_length_c   4.63
_cell_angle_alpha   109.1
_cell_angle_beta   109.1
_cell_angle_gamma   38.77
_symmetry_Int_Tables_number   1
_chemical_formula_structural   InSe
_chemical_formula_sum   'In2 Se2'
_cell_volume   108.61
_cell_formula_units_Z   2
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  0.51  0.0  0.09  1.0
  In  In1  1  0.81  0.0  0.25  1.0
  Se  Se2  1  0.56  0.0  0.55  1.0
  Se  Se3  1  0.76  0.0  0.79  1.0

data_InSe
_symmetry_space_group_name_H-M   P-1
_cell_length_a   4.2
_cell_length_b   4.63
_cell_length_c   6.32
_cell_angle_alpha   109.1
_cell_angle_beta   109.39
_cell_angle_gamma   90.0
_symmetry_Int_Tables_number   2
_chemical_formula_structural   InSe
_chemical_formula_sum   'In2 Se2'
_cell_volume   108.61
_cell_formula_units_Z   2
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
  In  In0  2  0.0  0.08  0.65  1.0
  Se  Se1  2  0.0  0.38  0.4  1.0

In In Se Se