The material described by HW3 crystallizes in the hexagonal P6_3/mmc space group. There are two inequivalent W sites. In the first W site, W(1) is bonded in a 12-coordinate geometry to eight W(1,1) and four equivalent H(1) atoms. In the second W site, W(1) is bonded in a 12-coordinate geometry to eight equivalent W(1) and four equivalent H(1) atoms. H(1) is bonded in a 12-coordinate geometry to twelve W(1,1) atoms. is represented by the CIF card [CIF]
data_HW3
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   5.510
_cell_length_b   5.510
_cell_length_c   4.382
_cell_angle_alpha   90.000
_cell_angle_beta   90.000
_cell_angle_gamma   120.000
_symmetry_Int_Tables_number   1
_cell_volume   115.205
_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
  H  H0  1  0.333  0.667  0.750  1.0
  H  H1  1  0.667  0.333  0.250  1.0
  W  W2  1  0.165  0.330  0.250  1.0
  W  W3  1  0.670  0.835  0.250  1.0
  W  W4  1  0.165  0.835  0.250  1.0
  W  W5  1  0.835  0.670  0.750  1.0
  W  W6  1  0.330  0.165  0.750  1.0
  W  W7  1  0.835  0.165  0.750  1.0
[/CIF]
.
The material described by HW3 crystallizes in the hexagonal P6_3/mmc space group. There are two inequivalent W sites. In the first W site, W(1) is bonded in a 12-coordinate geometry to eight W(1,1) and four equivalent H(1) atoms. In the second W site, W(1) is bonded in a 12-coordinate geometry to eight equivalent W(1) and four equivalent H(1) atoms. H(1) is bonded in a 12-coordinate geometry to twelve W(1,1) atoms. is represented by the CIF card [CIF]
data_HW3
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   5.510
_cell_length_b   5.510
_cell_length_c   4.382
_cell_angle_alpha   90.000
_cell_angle_beta   90.000
_cell_angle_gamma   120.000
_symmetry_Int_Tables_number   1
_cell_volume   115.205
_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
  H  H0  1  0.333  0.667  0.750  1.0
  H  H1  1  0.667  0.333  0.250  1.0
  W  W2  1  0.165  0.330  0.250  1.0
  W  W3  1  0.670  0.835  0.250  1.0
  W  W4  1  0.165  0.835  0.250  1.0
  W  W5  1  0.835  0.670  0.750  1.0
  W  W6  1  0.330  0.165  0.750  1.0
  W  W7  1  0.835  0.165  0.750  1.0
[/CIF]
.