The compound described by Yb4Rh7As6 crystallizes in the cubic Im-3m space group. Yb(1) is bonded to six equivalent Rh(1) and six equivalent As(1) atoms to form YbAs6Rh6 cuboctahedra that share corners with twelve equivalent Yb(1)As6Rh6 cuboctahedra, faces with six equivalent Yb(1)As6Rh6 cuboctahedra, and faces with two equivalent Rh(2)As6 octahedra. There are two inequivalent Rh sites. In the first Rh site, Rh(1) is bonded in a 8-coordinate geometry to four equivalent Yb(1) and four equivalent As(1) atoms. In the second Rh site, Rh(2) is bonded to six equivalent As(1) atoms to form RhAs6 octahedra that share faces with eight equivalent Yb(1)As6Rh6 cuboctahedra. As(1) is bonded in a 9-coordinate geometry to four equivalent Yb(1), one Rh(2), and four equivalent Rh(1) atoms. is represented by the CIF file [CIF]
data_Yb4As6Rh7
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   7.152
_cell_length_b   7.152
_cell_length_c   7.152
_cell_angle_alpha   109.471
_cell_angle_beta   109.471
_cell_angle_gamma   109.471
_symmetry_Int_Tables_number   1
_cell_volume   281.570
_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
  Yb  Yb0  1  0.000  0.000  0.500  1.0
  Yb  Yb1  1  0.000  0.500  0.000  1.0
  Yb  Yb2  1  0.500  0.000  0.000  1.0
  Yb  Yb3  1  0.500  0.500  0.500  1.0
  As  As4  1  0.000  0.680  0.680  1.0
  As  As5  1  0.320  0.320  0.000  1.0
  As  As6  1  0.680  0.680  0.000  1.0
  As  As7  1  0.680  0.000  0.680  1.0
  As  As8  1  0.320  0.000  0.320  1.0
  As  As9  1  0.000  0.320  0.320  1.0
  Rh  Rh10  1  0.750  0.500  0.250  1.0
  Rh  Rh11  1  0.750  0.250  0.500  1.0
  Rh  Rh12  1  0.250  0.750  0.500  1.0
  Rh  Rh13  1  0.500  0.250  0.750  1.0
  Rh  Rh14  1  0.000  0.000  0.000  1.0
  Rh  Rh15  1  0.250  0.500  0.750  1.0
  Rh  Rh16  1  0.500  0.750  0.250  1.0
[/CIF]
.
The compound described by Yb4Rh7As6 crystallizes in the cubic Im-3m space group. Yb(1) is bonded to six equivalent Rh(1) and six equivalent As(1) atoms to form YbAs6Rh6 cuboctahedra that share corners with twelve equivalent Yb(1)As6Rh6 cuboctahedra, faces with six equivalent Yb(1)As6Rh6 cuboctahedra, and faces with two equivalent Rh(2)As6 octahedra. There are two inequivalent Rh sites. In the first Rh site, Rh(1) is bonded in a 8-coordinate geometry to four equivalent Yb(1) and four equivalent As(1) atoms. In the second Rh site, Rh(2) is bonded to six equivalent As(1) atoms to form RhAs6 octahedra that share faces with eight equivalent Yb(1)As6Rh6 cuboctahedra. As(1) is bonded in a 9-coordinate geometry to four equivalent Yb(1), one Rh(2), and four equivalent Rh(1) atoms. is represented by the CIF file [CIF]
data_Yb4As6Rh7
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   7.152
_cell_length_b   7.152
_cell_length_c   7.152
_cell_angle_alpha   109.471
_cell_angle_beta   109.471
_cell_angle_gamma   109.471
_symmetry_Int_Tables_number   1
_cell_volume   281.570
_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
  Yb  Yb0  1  0.000  0.000  0.500  1.0
  Yb  Yb1  1  0.000  0.500  0.000  1.0
  Yb  Yb2  1  0.500  0.000  0.000  1.0
  Yb  Yb3  1  0.500  0.500  0.500  1.0
  As  As4  1  0.000  0.680  0.680  1.0
  As  As5  1  0.320  0.320  0.000  1.0
  As  As6  1  0.680  0.680  0.000  1.0
  As  As7  1  0.680  0.000  0.680  1.0
  As  As8  1  0.320  0.000  0.320  1.0
  As  As9  1  0.000  0.320  0.320  1.0
  Rh  Rh10  1  0.750  0.500  0.250  1.0
  Rh  Rh11  1  0.750  0.250  0.500  1.0
  Rh  Rh12  1  0.250  0.750  0.500  1.0
  Rh  Rh13  1  0.500  0.250  0.750  1.0
  Rh  Rh14  1  0.000  0.000  0.000  1.0
  Rh  Rh15  1  0.250  0.500  0.750  1.0
  Rh  Rh16  1  0.500  0.750  0.250  1.0
[/CIF]
.