data_AgP4Rh
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   5.1
_cell_length_b   5.1
_cell_length_c   5.1
_cell_angle_alpha   60.0
_cell_angle_beta   60.0
_cell_angle_gamma   60.0
_symmetry_Int_Tables_number   1
_chemical_formula_structural   AgP4Rh
_chemical_formula_sum   'Ag1 P4 Rh1'
_cell_volume   94.06
_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  0.8  0.8  0.8  1.0
  P  P1  1  0.77  0.77  0.45  1.0
  P  P2  1  0.77  0.45  0.77  1.0
  P  P3  1  0.45  0.77  0.77  1.0
  P  P4  1  0.45  0.45  0.45  1.0
  Rh  Rh5  1  0.0  0.0  0.0  1.0

data_AgP4Rh
_symmetry_space_group_name_H-M   R3m
_cell_length_a   5.1
_cell_length_b   5.1
_cell_length_c   12.5
_cell_angle_alpha   90.0
_cell_angle_beta   90.0
_cell_angle_gamma   120.0
_symmetry_Int_Tables_number   160
_chemical_formula_structural   AgP4Rh
_chemical_formula_sum   'Ag3 P12 Rh3'
_cell_volume   282.17
_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  0.2  1.0
  P  P1  9  0.22  0.11  0.34  1.0
  P  P2  3  0.0  0.0  0.55  1.0
  Rh  Rh3  3  0.0  0.0  0.0  1.0

Ag P P P P Rh
RhAgP4 crystallizes in the trigonal R3m space group. Rh(1) is bonded in a trigonal pyramidal geometry to one Ag(1) and three equivalent P(1) atoms. The Rh(1)-Ag(1) bond length is 2.44 Å. All Rh(1)-P(1) bond lengths are 1.99 Å. Ag(1) is bonded in a 4-coordinate geometry to one Rh(1), three equivalent P(1), and three equivalent P(2) atoms. All Ag(1)-P(1) bond lengths are 2.01 Å. All Ag(1)-P(2) bond lengths are 2.96 Å. There are two inequivalent P sites. In the first P site, P(1) is bonded in a 4-coordinate geometry to one Rh(1), one Ag(1), and two equivalent P(1) atoms. Both P(1)-P(1) bond lengths are 1.65 Å. In the second P site, P(2) is bonded in a distorted trigonal planar geometry to three equivalent Ag(1) atoms.