data_PtW2Se
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   4.39
_cell_length_b   4.39
_cell_length_c   5.64
_cell_angle_alpha   99.3
_cell_angle_beta   99.3
_cell_angle_gamma   38.02
_symmetry_Int_Tables_number   1
_chemical_formula_structural   PtW2Se
_chemical_formula_sum   'Pt1 W2 Se1'
_cell_volume   65.83
_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
  Pt  Pt0  1  0.66  0.0  0.78  1.0
  W  W2  1  0.34  0.0  0.24  1.0
  W  W3  1  0.99  0.0  0.32  1.0
  Se  Se1  1  0.0  0.0  0.0  1.0

data_PtW2Se
_symmetry_space_group_name_H-M   P1
_cell_length_a   2.86
_cell_length_b   4.39
_cell_length_c   5.64
_cell_angle_alpha   99.3
_cell_angle_beta   90.0
_cell_angle_gamma   109.01
_symmetry_Int_Tables_number   1
_chemical_formula_structural   PtW2Se
_chemical_formula_sum   'Pt1 W2 Se1'
_cell_volume   65.83
_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
  Pt  Pt0  1  0.0  0.34  0.22  1.0
  W  W1  1  0.0  0.01  0.68  1.0
  W  W2  1  0.0  0.66  0.76  1.0
  Se  Se3  1  0.0  0.0  0.0  1.0

Pt W W Se
W2PtSe crystallizes in the triclinic P1 space group. The structure is zero-dimensional and consists of one W2PtSe cluster. 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 one Se(1) atom. The W(1)-W(2) bond length is 1.67 Å. The W(1)-Se(1) bond length is 1.83 Å. In the second W site, W(2) is bonded in a 2-coordinate geometry to one W(1) and one Se(1) atom. The W(2)-Se(1) bond length is 1.81 Å. Pt(1) is bonded in a single-bond geometry to one Se(1) atom. The Pt(1)-Se(1) bond length is 1.77 Å. Se(1) is bonded in a 3-coordinate geometry to one W(1), one W(2), and one Pt(1) atom.