data_ZrSi2W
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   3.12
_cell_length_b   3.12
_cell_length_c   6.66
_cell_angle_alpha   90.0
_cell_angle_beta   90.0
_cell_angle_gamma   90.0
_symmetry_Int_Tables_number   1
_chemical_formula_structural   ZrSi2W
_chemical_formula_sum   'Zr1 Si2 W1'
_cell_volume   64.66
_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
  Zr  Zr3  1  0.0  0.0  0.0  1.0
  Si  Si0  1  0.56  0.56  0.93  1.0
  Si  Si1  1  0.56  0.56  0.73  1.0
  W  W2  1  0.0  0.0  0.33  1.0

data_ZrSi2W
_symmetry_space_group_name_H-M   Cm
_cell_length_a   4.41
_cell_length_b   4.41
_cell_length_c   6.66
_cell_angle_alpha   90.0
_cell_angle_beta   90.0
_cell_angle_gamma   90.0
_symmetry_Int_Tables_number   8
_chemical_formula_structural   ZrSi2W
_chemical_formula_sum   'Zr2 Si4 W2'
_cell_volume   129.31
_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
  Zr  Zr0  2  0.0  0.0  0.0  1.0
  Si  Si1  2  0.06  0.5  0.73  1.0
  Si  Si2  2  0.06  0.5  0.93  1.0
  W  W3  2  0.0  0.0  0.33  1.0

Zr Si Si W
Zr Si Si W 0 1 - - - 0 1 - o - 0 1 o - - 0 1 o o - 0 3 o o o 1 2 o o o 