data_YW4
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   11.42
_cell_length_b   11.42
_cell_length_c   11.42
_cell_angle_alpha   15.44
_cell_angle_beta   15.44
_cell_angle_gamma   15.44
_symmetry_Int_Tables_number   1
_chemical_formula_structural   YW4
_chemical_formula_sum   'Y1 W4'
_cell_volume   91.9
_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
  Y  Y4  1  0.0  0.0  0.0  1.0
  W  W0  1  0.0  0.0  0.85  1.0
  W  W1  1  0.0  0.0  0.14  1.0
  W  W2  1  0.0  0.0  0.7  1.0
  W  W3  1  0.0  0.0  0.99  1.0

data_YW4
_symmetry_space_group_name_H-M   Cm
_cell_length_a   5.31
_cell_length_b   3.07
_cell_length_c   11.42
_cell_angle_alpha   90.0
_cell_angle_beta   98.92
_cell_angle_gamma   90.0
_symmetry_Int_Tables_number   8
_chemical_formula_structural   YW4
_chemical_formula_sum   'Y2 W8'
_cell_volume   183.79
_cell_formula_units_Z   2
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
  Y  Y0  2  0.0  0.0  0.0  1.0
  W  W1  2  0.0  0.0  0.01  1.0
  W  W2  2  0.0  0.0  0.15  1.0
  W  W3  2  0.0  0.0  0.3  1.0
  W  W4  2  0.0  0.0  0.86  1.0

Y W W W W