data_SnTeW2
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   3.32
_cell_length_b   3.32
_cell_length_c   6.7
_cell_angle_alpha   90.0
_cell_angle_beta   90.0
_cell_angle_gamma   90.0
_symmetry_Int_Tables_number   1
_chemical_formula_structural   SnTeW2
_chemical_formula_sum   'Sn1 Te1 W2'
_cell_volume   73.91
_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
  Sn  Sn0  1  0.0  0.0  0.0  1.0
  Te  Te1  1  0.0  0.0  0.35  1.0
  W  W2  1  0.66  0.66  0.01  1.0
  W  W3  1  0.66  0.66  0.69  1.0

data_SnTeW2
_symmetry_space_group_name_H-M   Cm
_cell_length_a   4.7
_cell_length_b   4.7
_cell_length_c   6.7
_cell_angle_alpha   90.0
_cell_angle_beta   90.0
_cell_angle_gamma   90.0
_symmetry_Int_Tables_number   8
_chemical_formula_structural   SnTeW2
_chemical_formula_sum   'Sn2 Te2 W4'
_cell_volume   147.81
_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
  Sn  Sn0  2  0.0  0.0  0.0  1.0
  Te  Te1  2  0.0  0.0  0.35  1.0
  W  W2  2  0.16  0.5  0.01  1.0
  W  W3  2  0.16  0.5  0.69  1.0

Sn Te W W
W2SnTe crystallizes in the monoclinic Cm space group. There are two inequivalent W sites. In the first W site, W(1) is bonded in a distorted single-bond geometry to one W(2) and one Sn(1) atom. The W(1)-W(2) bond length is 2.12 Å. The W(1)-Sn(1) bond length is 1.59 Å. In the second W site, W(2) is bonded in a 11-coordinate geometry to one W(1), four equivalent W(2), three equivalent Sn(1), and three equivalent Te(1) atoms. All W(2)-W(2) bond lengths are 3.32 Å. There is one shorter (2.62 Å) and two longer (3.23 Å) W(2)-Sn(1) bond lengths. There is one shorter (2.79 Å) and two longer (3.36 Å) W(2)-Te(1) bond lengths. Sn(1) is bonded in a distorted single-bond geometry to one W(1), three equivalent W(2), and one Te(1) atom. The Sn(1)-Te(1) bond length is 2.33 Å. Te(1) is bonded in a 2-coordinate geometry to three equivalent W(2) and one Sn(1) atom.