data_SrSnW2
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   3.48
_cell_length_b   3.48
_cell_length_c   6.43
_cell_angle_alpha   90.0
_cell_angle_beta   90.0
_cell_angle_gamma   90.0
_symmetry_Int_Tables_number   1
_chemical_formula_structural   SrSnW2
_chemical_formula_sum   'Sr1 Sn1 W2'
_cell_volume   77.83
_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
  Sr  Sr1  1  0.0  0.0  0.0  1.0
  Sn  Sn0  1  0.0  0.0  0.21  1.0
  W  W2  1  0.74  0.74  0.72  1.0
  W  W3  1  0.74  0.74  0.7  1.0

data_SrSnW2
_symmetry_space_group_name_H-M   Cm
_cell_length_a   4.92
_cell_length_b   4.92
_cell_length_c   6.43
_cell_angle_alpha   90.0
_cell_angle_beta   90.0
_cell_angle_gamma   90.0
_symmetry_Int_Tables_number   8
_chemical_formula_structural   SrSnW2
_chemical_formula_sum   'Sr2 Sn2 W4'
_cell_volume   155.65
_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
  Sr  Sr0  2  0.0  0.0  0.0  1.0
  Sn  Sn1  2  0.0  0.0  0.21  1.0
  W  W2  2  0.24  0.5  0.7  1.0
  W  W3  2  0.24  0.5  0.72  1.0

Sr Sn W W
SrW2Sn crystallizes in the monoclinic Cm space group. The structure is zero-dimensional and consists of two SrW2Sn clusters. Sr(1) is bonded in a distorted bent 150 degrees geometry to one W(1) and one Sn(1) atom. The Sr(1)-W(1) bond length is 2.19 Å. The Sr(1)-Sn(1) bond length is 1.37 Å. There are two inequivalent W sites. In the first W site, W(1) is bonded in a distorted bent 150 degrees geometry to one Sr(1) and one W(2) atom. The W(1)-W(2) bond length is 0.14 Å. In the second W site, W(2) is bonded in a single-bond geometry to one W(1) atom. Sn(1) is bonded in a single-bond geometry to one Sr(1) atom.