data_SiAgW2
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   2.75
_cell_length_b   2.75
_cell_length_c   8.66
_cell_angle_alpha   90.0
_cell_angle_beta   90.0
_cell_angle_gamma   106.27
_symmetry_Int_Tables_number   1
_chemical_formula_structural   SiAgW2
_chemical_formula_sum   'Si1 Ag1 W2'
_cell_volume   62.8
_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
  Si  Si1  1  0.0  0.0  0.0  1.0
  Ag  Ag0  1  0.0  0.0  0.33  1.0
  W  W2  1  0.65  0.0  0.95  1.0
  W  W3  1  0.65  0.0  0.71  1.0

data_SiAgW2
_symmetry_space_group_name_H-M   P1
_cell_length_a   2.75
_cell_length_b   2.75
_cell_length_c   8.66
_cell_angle_alpha   90.0
_cell_angle_beta   90.0
_cell_angle_gamma   106.27
_symmetry_Int_Tables_number   1
_chemical_formula_structural   SiAgW2
_chemical_formula_sum   'Si1 Ag1 W2'
_cell_volume   62.8
_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
  Si  Si0  1  0.0  0.0  0.0  1.0
  Ag  Ag1  1  0.0  0.0  0.33  1.0
  W  W2  1  0.65  0.0  0.71  1.0
  W  W3  1  0.65  0.0  0.95  1.0

Si Ag W W
Si Ag W W 0 2 - o - 0 1 o o o 1 1 + + o 1 1 o + o 1 1 + o o 2 3 o o o 
W2AgSi crystallizes in the triclinic P1 space group. There are two inequivalent W sites. In the first W site, W(1) is bonded in a 2-coordinate geometry to one W(2) and two equivalent Si(1) atoms. The W(1)-W(2) bond length is 2.07 Å. There is one shorter (1.06 Å) and one longer (1.83 Å) W(1)-Si(1) bond length. In the second W site, W(2) is bonded in a 6-coordinate geometry to one W(1), four equivalent W(2), and one Ag(1) atom. All W(2)-W(2) bond lengths are 2.75 Å. The W(2)-Ag(1) bond length is 3.43 Å. Ag(1) is bonded in a 6-coordinate geometry to one W(2), four equivalent Ag(1), and one Si(1) atom. All Ag(1)-Ag(1) bond lengths are 2.75 Å. The Ag(1)-Si(1) bond length is 2.86 Å. Si(1) is bonded in a distorted bent 150 degrees geometry to two equivalent W(1) and one Ag(1) atom.