data_AgB4Rh
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   4.33
_cell_length_b   4.33
_cell_length_c   4.33
_cell_angle_alpha   60.0
_cell_angle_beta   60.0
_cell_angle_gamma   60.0
_symmetry_Int_Tables_number   1
_chemical_formula_structural   AgB4Rh
_chemical_formula_sum   'Ag1 B4 Rh1'
_cell_volume   57.38
_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
  Ag  Ag0  1  0.53  0.53  0.53  1.0
  B  B1  1  0.19  0.19  0.93  1.0
  B  B2  1  0.93  0.93  0.93  1.0
  B  B3  1  0.19  0.93  0.19  1.0
  B  B4  1  0.93  0.19  0.19  1.0
  Rh  Rh5  1  0.0  0.0  0.0  1.0

data_AgB4Rh
_symmetry_space_group_name_H-M   R3m
_cell_length_a   4.33
_cell_length_b   4.33
_cell_length_c   10.6
_cell_angle_alpha   90.0
_cell_angle_beta   90.0
_cell_angle_gamma   120.0
_symmetry_Int_Tables_number   160
_chemical_formula_structural   AgB4Rh
_chemical_formula_sum   'Ag3 B12 Rh3'
_cell_volume   172.14
_cell_formula_units_Z   3
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  '-y, -x, z'
  5  '-x+y, y, z'
  6  'x, x-y, z'
  7  'x+1/3, y+2/3, z+2/3'
  8  '-y+1/3, x-y+2/3, z+2/3'
  9  '-x+y+1/3, -x+2/3, z+2/3'
  10  '-y+1/3, -x+2/3, z+2/3'
  11  '-x+y+1/3, y+2/3, z+2/3'
  12  'x+1/3, x-y+2/3, z+2/3'
  13  'x+2/3, y+1/3, z+1/3'
  14  '-y+2/3, x-y+1/3, z+1/3'
  15  '-x+y+2/3, -x+1/3, z+1/3'
  16  '-y+2/3, -x+1/3, z+1/3'
  17  '-x+y+2/3, y+1/3, z+1/3'
  18  'x+2/3, x-y+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
  Ag  Ag0  3  0.0  0.0  0.47  1.0
  B  B1  9  0.17  0.09  0.9  1.0
  B  B2  3  0.0  0.0  0.07  1.0
  Rh  Rh3  3  0.0  0.0  -0.0  1.0

Ag B B B B Rh
Ag B B B B Rh 0 1 o o o 0 3 o o o 0 4 o o o 1 5 o o + 1 3 o - + 1 4 - o + 2 5 + + + 3 5 o + o 3 4 - + o 4 5 + o o 
RhAgB4 crystallizes in the trigonal R3m space group. Rh(1) is bonded in a distorted single-bond geometry to one B(2) and three equivalent B(1) atoms. The Rh(1)-B(2) bond length is 0.72 Å. All Rh(1)-B(1) bond lengths are 1.28 Å. Ag(1) is bonded in a 6-coordinate geometry to three equivalent B(1) and three equivalent B(2) atoms. All Ag(1)-B(1) bond lengths are 2.10 Å. All Ag(1)-B(2) bond lengths are 2.60 Å. There are two inequivalent B sites. In the first B site, B(1) is bonded in a 4-coordinate geometry to one Rh(1), one Ag(1), and two equivalent B(1) atoms. Both B(1)-B(1) bond lengths are 1.12 Å. In the second B site, B(2) is bonded in a single-bond geometry to one Rh(1) and three equivalent Ag(1) atoms.