data_YClO
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   3.93
_cell_length_b   3.93
_cell_length_c   6.73
_cell_angle_alpha   90.0
_cell_angle_beta   90.0
_cell_angle_gamma   90.0
_symmetry_Int_Tables_number   1
_chemical_formula_structural   YClO
_chemical_formula_sum   'Y2 Cl2 O2'
_cell_volume   104.02
_cell_formula_units_Z   2
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  Y0  1  0.97  0.0  0.61  1.0
  Y  Y1  1  0.0  0.97  0.12  1.0
  Cl  Cl2  1  0.0  0.97  0.23  1.0
  Cl  Cl3  1  0.97  0.0  0.5  1.0
  O  O4  1  0.0  0.0  0.0  1.0
  O  O5  1  0.97  0.97  0.0  1.0

data_YClO
_symmetry_space_group_name_H-M   Cm
_cell_length_a   5.56
_cell_length_b   5.56
_cell_length_c   6.73
_cell_angle_alpha   90.0
_cell_angle_beta   90.0
_cell_angle_gamma   90.0
_symmetry_Int_Tables_number   8
_chemical_formula_structural   YClO
_chemical_formula_sum   'Y4 Cl4 O4'
_cell_volume   208.05
_cell_formula_units_Z   4
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  0.12  1.0
  Y  Y1  2  0.47  0.5  0.61  1.0
  Cl  Cl2  2  0.0  0.0  0.23  1.0
  Cl  Cl3  2  0.47  0.5  0.5  1.0
  O  O4  4  0.48  0.48  0.0  1.0

Y Y Cl Cl O O
Y Y Cl Cl O O 0 3 o o o 1 5 - o o 1 4 o + o 1 2 o o o 4 5 - - o 
YOCl crystallizes in the monoclinic Cm space group. The structure is zero-dimensional and consists of two YCl clusters and two YO2Cl clusters. In each YCl cluster, Y(1) is bonded in a single-bond geometry to one Cl(2) atom. The Y(1)-Cl(2) bond length is 0.74 Å. Cl(2) is bonded in a single-bond geometry to one Y(1) atom. In each YO2Cl cluster, Y(2) is bonded in a 3-coordinate geometry to two equivalent O(1) and one Cl(1) atom. Both Y(2)-O(1) bond lengths are 0.83 Å. The Y(2)-Cl(1) bond length is 0.74 Å. O(1) is bonded in a distorted L-shaped geometry to one Y(2) and one O(1) atom. The O(1)-O(1) bond length is 0.19 Å. Cl(1) is bonded in a single-bond geometry to one Y(2) atom.