data_W
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   2.81
_cell_length_b   4.86
_cell_length_c   4.92
_cell_angle_alpha   90.0
_cell_angle_beta   90.0
_cell_angle_gamma   90.0
_symmetry_Int_Tables_number   1
_chemical_formula_structural   W
_chemical_formula_sum   W4
_cell_volume   67.29
_cell_formula_units_Z   4
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  W0  1  0.23  0.74  0.23  1.0
  W  W1  1  0.58  0.31  0.23  1.0
  W  W2  1  0.58  0.12  0.69  1.0
  W  W3  1  0.23  0.56  0.69  1.0

data_W
_symmetry_space_group_name_H-M   P-1
_cell_length_a   2.81
_cell_length_b   4.86
_cell_length_c   4.92
_cell_angle_alpha   90.0
_cell_angle_beta   90.0
_cell_angle_gamma   90.0
_symmetry_Int_Tables_number   2
_chemical_formula_structural   W
_chemical_formula_sum   W4
_cell_volume   67.29
_cell_formula_units_Z   4
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
  W  W0  2  0.18  0.69  0.23  1.0
  W  W1  2  0.18  0.88  0.77  1.0

W W W W
W W W W 0 1 - o o 0 1 o o o 0 1 o + o 0 0 + o o 0 3 o o - 0 3 o o o 1 3 o o - 1 3 o o o 1 1 + o o 1 2 o o - 1 2 o o o 2 3 o - o 2 3 o o o 2 3 + o o 2 2 + o o 3 3 + o o 
W crystallizes in the triclinic P-1 space group. There are two inequivalent W sites. In the first W site, W(1) is bonded in a 7-coordinate geometry to two equivalent W(1) and five equivalent W(2) atoms. Both W(1)-W(1) bond lengths are 2.81 Å. There are a spread of W(1)-W(2) bond distances ranging from 2.32-2.94 Å. In the second W site, W(2) is bonded in a 2-coordinate geometry to five equivalent W(1) atoms.