data_B2Se
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   4.37
_cell_length_b   5.28
_cell_length_c   3.11
_cell_angle_alpha   90.0
_cell_angle_beta   90.0
_cell_angle_gamma   90.0
_symmetry_Int_Tables_number   1
_chemical_formula_structural   B2Se
_chemical_formula_sum   'B4 Se2'
_cell_volume   71.83
_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
  B  B0  1  0.66  0.12  0.0  1.0
  B  B1  1  0.71  0.16  0.0  1.0
  B  B2  1  0.84  0.79  0.56  1.0
  B  B3  1  0.53  0.48  0.56  1.0
  Se  Se4  1  0.0  0.0  0.0  1.0
  Se  Se5  1  0.19  0.64  0.56  1.0

data_B2Se
_symmetry_space_group_name_H-M   P1
_cell_length_a   3.11
_cell_length_b   4.37
_cell_length_c   5.28
_cell_angle_alpha   90.0
_cell_angle_beta   90.0
_cell_angle_gamma   90.0
_symmetry_Int_Tables_number   1
_chemical_formula_structural   B2Se
_chemical_formula_sum   'B4 Se2'
_cell_volume   71.83
_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
  B  B0  1  0.0  0.66  0.12  1.0
  B  B1  1  0.0  0.71  0.16  1.0
  B  B2  1  0.56  0.53  0.48  1.0
  B  B3  1  0.56  0.84  0.79  1.0
  Se  Se4  1  0.0  0.0  0.0  1.0
  Se  Se5  1  0.56  0.19  0.64  1.0

B B B B Se Se