The structure described by Y is alpha La structured and crystallizes in the hexagonal P6_3/mmc space group. There are two inequivalent Y sites. In the first Y site, Y(1) is bonded to six equivalent Y(1) and six equivalent Y(2) atoms to form a mixture of edge, face, and corner-sharing YY12 cuboctahedra. In the second Y site, Y(2) is bonded to six equivalent Y(1) and six equivalent Y(2) atoms to form a mixture of edge, face, and corner-sharing YY12 cuboctahedra. is represented by the CIF card [CIF]
data_Y
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   3.643
_cell_length_b   3.643
_cell_length_c   11.844
_cell_angle_alpha   90.000
_cell_angle_beta   90.000
_cell_angle_gamma   120.000
_symmetry_Int_Tables_number   1
_cell_volume   136.095
_cell_formula_units_Z   4
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  0.000  0.000  1.000  1.0
  Y  Y1  1  0.333  0.667  0.250  1.0
  Y  Y2  1  0.000  0.000  0.500  1.0
  Y  Y3  1  0.667  0.333  0.750  1.0
[/CIF]
.
The structure described by Y is alpha La structured and crystallizes in the hexagonal P6_3/mmc space group. There are two inequivalent Y sites. In the first Y site, Y(1) is bonded to six equivalent Y(1) and six equivalent Y(2) atoms to form a mixture of edge, face, and corner-sharing YY12 cuboctahedra. In the second Y site, Y(2) is bonded to six equivalent Y(1) and six equivalent Y(2) atoms to form a mixture of edge, face, and corner-sharing YY12 cuboctahedra. is represented by the CIF card [CIF]
data_Y
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   3.643
_cell_length_b   3.643
_cell_length_c   11.844
_cell_angle_alpha   90.000
_cell_angle_beta   90.000
_cell_angle_gamma   120.000
_symmetry_Int_Tables_number   1
_cell_volume   136.095
_cell_formula_units_Z   4
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  0.000  0.000  1.000  1.0
  Y  Y1  1  0.333  0.667  0.250  1.0
  Y  Y2  1  0.000  0.000  0.500  1.0
  Y  Y3  1  0.667  0.333  0.750  1.0
[/CIF]
.