data_WSe3
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   11.94
_cell_length_b   11.94
_cell_length_c   11.94
_cell_angle_alpha   161.21
_cell_angle_beta   161.21
_cell_angle_gamma   26.7
_symmetry_Int_Tables_number   1
_chemical_formula_structural   WSe3
_chemical_formula_sum   'W2 Se6'
_cell_volume   176.56
_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
  W  W6  1  0.0  0.0  0.83  1.0
  W  W7  1  0.0  0.0  0.4  1.0
  Se  Se0  1  0.0  0.95  0.0  1.0
  Se  Se1  1  0.95  0.0  0.0  1.0
  Se  Se2  1  0.95  0.0  0.81  1.0
  Se  Se3  1  0.0  0.95  0.81  1.0
  Se  Se4  1  0.0  0.0  0.16  1.0
  Se  Se5  1  0.0  0.0  0.07  1.0

data_WSe3
_symmetry_space_group_name_H-M   Cm
_cell_length_a   5.51
_cell_length_b   5.51
_cell_length_c   11.94
_cell_angle_alpha   90.0
_cell_angle_beta   103.35
_cell_angle_gamma   90.0
_symmetry_Int_Tables_number   8
_chemical_formula_structural   WSe3
_chemical_formula_sum   'W4 Se12'
_cell_volume   353.12
_cell_formula_units_Z   4
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
  W  W0  2  0.0  0.0  0.17  1.0
  W  W1  2  0.0  0.0  0.6  1.0
  Se  Se2  4  0.47  0.47  0.95  1.0
  Se  Se3  4  0.47  0.47  0.14  1.0
  Se  Se4  2  0.0  0.0  0.84  1.0
  Se  Se5  2  0.0  0.0  0.93  1.0

W W Se Se Se Se Se Se