data_AsRh3
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   4.95
_cell_length_b   4.95
_cell_length_c   4.95
_cell_angle_alpha   90.0
_cell_angle_beta   90.0
_cell_angle_gamma   90.0
_symmetry_Int_Tables_number   1
_chemical_formula_structural   AsRh3
_chemical_formula_sum   'As2 Rh6'
_cell_volume   121.14
_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
  As  As0  1  0.47  0.47  0.47  1.0
  As  As1  1  0.0  0.0  0.0  1.0
  Rh  Rh2  1  0.24  0.0  0.47  1.0
  Rh  Rh3  1  0.71  0.0  0.47  1.0
  Rh  Rh4  1  0.47  0.24  0.0  1.0
  Rh  Rh5  1  0.47  0.71  0.0  1.0
  Rh  Rh6  1  0.0  0.47  0.71  1.0
  Rh  Rh7  1  0.0  0.47  0.24  1.0

data_AsRh3
_symmetry_space_group_name_H-M   R3
_cell_length_a   7.0
_cell_length_b   7.0
_cell_length_c   8.57
_cell_angle_alpha   90.0
_cell_angle_beta   90.0
_cell_angle_gamma   120.0
_symmetry_Int_Tables_number   146
_chemical_formula_structural   AsRh3
_chemical_formula_sum   'As6 Rh18'
_cell_volume   363.41
_cell_formula_units_Z   6
loop_
 _symmetry_equiv_pos_site_id
 _symmetry_equiv_pos_as_xyz
  1  'x, y, z'
  2  '-y, x-y, z'
  3  '-x+y, -x, z'
  4  'x+1/3, y+2/3, z+2/3'
  5  '-y+1/3, x-y+2/3, z+2/3'
  6  '-x+y+1/3, -x+2/3, z+2/3'
  7  'x+2/3, y+1/3, z+1/3'
  8  '-y+2/3, x-y+1/3, z+1/3'
  9  '-x+y+2/3, -x+1/3, z+1/3'
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
  As  As0  3  0.0  0.0  0.0  1.0
  As  As1  3  0.0  0.0  0.47  1.0
  Rh  Rh2  9  0.0  0.76  0.24  1.0
  Rh  Rh3  9  0.08  0.39  0.39  1.0

As As Rh Rh Rh Rh Rh Rh
Rh3As is beta Uranium-derived structured and crystallizes in the trigonal R3 space group. There are six inequivalent Rh sites. In the first Rh site, Rh(1) is bonded in a 6-coordinate geometry to six equivalent Rh(2), two equivalent As(1), and two equivalent As(2) atoms. There are a spread of Rh(1)-Rh(2) bond distances ranging from 2.35-3.19 Å. There is one shorter (2.62 Å) and one longer (2.85 Å) Rh(1)-As(1) bond length. There is one shorter (2.62 Å) and one longer (2.85 Å) Rh(1)-As(2) bond length. In the second Rh site, Rh(2) is bonded in a 14-coordinate geometry to four equivalent Rh(2); six Rh(1,1,1,1,1); two equivalent As(1); and two equivalent As(2) atoms. There are two shorter (2.99 Å) and two longer (3.19 Å) Rh(2)-Rh(2) bond lengths. There are a spread of Rh(2)-Rh(1,1,1,1) bond distances ranging from 2.60-3.19 Å. There is one shorter (2.62 Å) and one longer (2.85 Å) Rh(2)-As(1) bond length. There is one shorter (2.75 Å) and one longer (2.97 Å) Rh(2)-As(2) bond length. In the third Rh site, Rh(1) is bonded in a 6-coordinate geometry to six equivalent Rh(2), two equivalent As(1), and two equivalent As(2) atoms. There is one shorter (2.62 Å) and one longer (2.85 Å) Rh(1)-As(1) bond length. There is one shorter (2.62 Å) and one longer (2.85 Å) Rh(1)-As(2) bond length. In the fourth Rh site, Rh(1) is bonded in a 6-coordinate geometry to six equivalent Rh(2), two equivalent As(1), and two equivalent As(2) atoms. There is one shorter (2.62 Å) and one longer (2.85 Å) Rh(1)-As(1) bond length. There is one shorter (2.62 Å) and one longer (2.85 Å) Rh(1)-As(2) bond length. In the fifth Rh site, Rh(1) is bonded in a 6-coordinate geometry to six equivalent Rh(2), two equivalent As(1), and two equivalent As(2) atoms. There is one shorter (2.62 Å) and one longer (2.85 Å) Rh(1)-As(1) bond length. There is one shorter (2.62 Å) and one longer (2.85 Å) Rh(1)-As(2) bond length. In the sixth Rh site, Rh(1) is bonded in a 6-coordinate geometry to six equivalent Rh(2), two equivalent As(1), and two equivalent As(2) atoms. There is one shorter (2.62 Å) and one longer (2.85 Å) Rh(1)-As(1) bond length. There is one shorter (2.62 Å) and one longer (2.85 Å) Rh(1)-As(2) bond length. There are two inequivalent As sites. In the first As site, As(1) is bonded to six Rh(1,1,1,1,1) and six equivalent Rh(2) atoms to form a mixture of edge and face-sharing AsRh12 cuboctahedra. In the second As site, As(2) is bonded to six Rh(1,1,1,1) and six equivalent Rh(2) atoms to form a mixture of edge and face-sharing AsRh12 cuboctahedra.