data_Y2PbW
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   3.6
_cell_length_b   3.6
_cell_length_c   8.06
_cell_angle_alpha   90.0
_cell_angle_beta   90.0
_cell_angle_gamma   90.0
_symmetry_Int_Tables_number   1
_chemical_formula_structural   Y2PbW
_chemical_formula_sum   'Y2 Pb1 W1'
_cell_volume   104.47
_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
  Y  Y2  1  0.8  0.8  0.62  1.0
  Y  Y3  1  0.0  0.0  0.4  1.0
  Pb  Pb0  1  0.8  0.8  0.37  1.0
  W  W1  1  0.0  0.0  0.77  1.0

data_Y2PbW
_symmetry_space_group_name_H-M   Cm
_cell_length_a   5.09
_cell_length_b   5.09
_cell_length_c   8.06
_cell_angle_alpha   90.0
_cell_angle_beta   90.0
_cell_angle_gamma   90.0
_symmetry_Int_Tables_number   8
_chemical_formula_structural   Y2PbW
_chemical_formula_sum   'Y4 Pb2 W2'
_cell_volume   208.94
_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
  Y  Y0  2  0.0  0.0  0.4  1.0
  Y  Y1  2  0.3  0.5  0.62  1.0
  Pb  Pb2  2  0.3  0.5  0.37  1.0
  W  W3  2  0.0  0.0  0.77  1.0

Y Y Pb W
Y2WPb crystallizes in the monoclinic Cm space group. The structure is zero-dimensional and consists of two Y2WPb clusters. There are two inequivalent Y sites. In the first Y site, Y(1) is bonded in a 2-coordinate geometry to one W(1) and one Pb(1) atom. The Y(1)-W(1) bond length is 1.57 Å. The Y(1)-Pb(1) bond length is 1.96 Å. In the second Y site, Y(2) is bonded in a single-bond geometry to one Pb(1) atom. The Y(2)-Pb(1) bond length is 1.03 Å. W(1) is bonded in a single-bond geometry to one Y(1) atom. Pb(1) is bonded in a 1-coordinate geometry to one Y(1) and one Y(2) atom.