The structure described by YPd7B2 crystallizes in the cubic Fm-3m space group. Y(1) is bonded to twelve equivalent Pd(1) atoms to form YPd12 cuboctahedra that share corners with twelve equivalent Y(1)Pd12 cuboctahedra, faces with six equivalent Pd(2)Pd12 cuboctahedra, and faces with eight equivalent B(1)Pd6 octahedra. There are two inequivalent Pd sites. In the first Pd site, Pd(1) is bonded in a distorted square co-planar geometry to two equivalent Y(1), two equivalent Pd(2), and two equivalent B(1) atoms. In the second Pd site, Pd(2) is bonded to twelve equivalent Pd(1) atoms to form PdPd12 cuboctahedra that share corners with twelve equivalent Pd(2)Pd12 cuboctahedra, faces with six equivalent Y(1)Pd12 cuboctahedra, and faces with eight equivalent B(1)Pd6 octahedra. B(1) is bonded to six equivalent Pd(1) atoms to form BPd6 octahedra that share corners with six equivalent B(1)Pd6 octahedra, faces with four equivalent Y(1)Pd12 cuboctahedra, and faces with four equivalent Pd(2)Pd12 cuboctahedra. The corner-sharing octahedra are not tilted. is represented by the CIF file [CIF]
data_YB2Pd7
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   5.994
_cell_length_b   5.994
_cell_length_c   5.994
_cell_angle_alpha   60.000
_cell_angle_beta   60.000
_cell_angle_gamma   60.000
_symmetry_Int_Tables_number   1
_cell_volume   152.291
_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  Y0  1  0.000  0.000  0.000  1.0
  B  B1  1  0.750  0.750  0.750  1.0
  B  B2  1  0.250  0.250  0.250  1.0
  Pd  Pd3  1  0.500  0.000  0.500  1.0
  Pd  Pd4  1  0.000  0.000  0.500  1.0
  Pd  Pd5  1  0.500  0.500  0.000  1.0
  Pd  Pd6  1  0.500  0.500  0.500  1.0
  Pd  Pd7  1  0.000  0.500  0.500  1.0
  Pd  Pd8  1  0.500  0.000  0.000  1.0
  Pd  Pd9  1  0.000  0.500  0.000  1.0
[/CIF]
.
The structure described by YPd7B2 crystallizes in the cubic Fm-3m space group. Y(1) is bonded to twelve equivalent Pd(1) atoms to form YPd12 cuboctahedra that share corners with twelve equivalent Y(1)Pd12 cuboctahedra, faces with six equivalent Pd(2)Pd12 cuboctahedra, and faces with eight equivalent B(1)Pd6 octahedra. There are two inequivalent Pd sites. In the first Pd site, Pd(1) is bonded in a distorted square co-planar geometry to two equivalent Y(1), two equivalent Pd(2), and two equivalent B(1) atoms. In the second Pd site, Pd(2) is bonded to twelve equivalent Pd(1) atoms to form PdPd12 cuboctahedra that share corners with twelve equivalent Pd(2)Pd12 cuboctahedra, faces with six equivalent Y(1)Pd12 cuboctahedra, and faces with eight equivalent B(1)Pd6 octahedra. B(1) is bonded to six equivalent Pd(1) atoms to form BPd6 octahedra that share corners with six equivalent B(1)Pd6 octahedra, faces with four equivalent Y(1)Pd12 cuboctahedra, and faces with four equivalent Pd(2)Pd12 cuboctahedra. The corner-sharing octahedra are not tilted. is represented by the CIF file [CIF]
data_YB2Pd7
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   5.994
_cell_length_b   5.994
_cell_length_c   5.994
_cell_angle_alpha   60.000
_cell_angle_beta   60.000
_cell_angle_gamma   60.000
_symmetry_Int_Tables_number   1
_cell_volume   152.291
_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  Y0  1  0.000  0.000  0.000  1.0
  B  B1  1  0.750  0.750  0.750  1.0
  B  B2  1  0.250  0.250  0.250  1.0
  Pd  Pd3  1  0.500  0.000  0.500  1.0
  Pd  Pd4  1  0.000  0.000  0.500  1.0
  Pd  Pd5  1  0.500  0.500  0.000  1.0
  Pd  Pd6  1  0.500  0.500  0.500  1.0
  Pd  Pd7  1  0.000  0.500  0.500  1.0
  Pd  Pd8  1  0.500  0.000  0.000  1.0
  Pd  Pd9  1  0.000  0.500  0.000  1.0
[/CIF]
.