data_Y2SiTe
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   7.53
_cell_length_b   7.53
_cell_length_c   7.53
_cell_angle_alpha   32.58
_cell_angle_beta   32.58
_cell_angle_gamma   32.58
_symmetry_Int_Tables_number   1
_chemical_formula_structural   Y2SiTe
_chemical_formula_sum   'Y2 Si1 Te1'
_cell_volume   109.93
_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  0.0  0.0  0.56  1.0
  Y  Y3  1  0.0  0.0  0.8  1.0
  Si  Si0  1  0.0  0.0  0.0  1.0
  Te  Te1  1  0.0  0.0  0.68  1.0

data_Y2SiTe
_symmetry_space_group_name_H-M   Cm
_cell_length_a   7.31
_cell_length_b   4.22
_cell_length_c   7.53
_cell_angle_alpha   90.0
_cell_angle_beta   108.9
_cell_angle_gamma   90.0
_symmetry_Int_Tables_number   8
_chemical_formula_structural   Y2SiTe
_chemical_formula_sum   'Y4 Si2 Te2'
_cell_volume   219.86
_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  0.44  1.0
  Y  Y1  2  -0.0  0.0  0.2  1.0
  Si  Si2  2  0.0  0.0  0.0  1.0
  Te  Te3  2  -0.0  0.0  0.32  1.0

Y Y Si Te
Y2SiTe is Cyanogen Chloride-like structured and crystallizes in the monoclinic Cm space group. The structure is zero-dimensional and consists of two Y2SiTe clusters. There are two inequivalent Y sites. In the first Y site, Y(1) is bonded in a single-bond geometry to one Te(1) atom. The Y(1)-Te(1) bond length is 0.89 Å. In the second Y site, Y(2) is bonded in a linear geometry to one Si(1) and one Te(1) atom. The Y(2)-Si(1) bond length is 1.51 Å. The Y(2)-Te(1) bond length is 0.89 Å. Si(1) is bonded in a single-bond geometry to one Y(2) atom. Te(1) is bonded in a linear geometry to one Y(1) and one Y(2) atom.