data_Pt2RhCl
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   4.49
_cell_length_b   4.49
_cell_length_c   4.49
_cell_angle_alpha   60.0
_cell_angle_beta   60.0
_cell_angle_gamma   60.0
_symmetry_Int_Tables_number   1
_chemical_formula_structural   Pt2RhCl
_chemical_formula_sum   'Pt2 Rh1 Cl1'
_cell_volume   63.89
_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
  Pt  Pt1  1  0.17  0.17  0.17  1.0
  Pt  Pt2  1  0.59  0.59  0.59  1.0
  Rh  Rh3  1  0.76  0.76  0.76  1.0
  Cl  Cl0  1  0.0  0.0  0.0  1.0

data_Pt2RhCl
_symmetry_space_group_name_H-M   R3m
_cell_length_a   4.49
_cell_length_b   4.49
_cell_length_c   10.99
_cell_angle_alpha   90.0
_cell_angle_beta   90.0
_cell_angle_gamma   120.0
_symmetry_Int_Tables_number   160
_chemical_formula_structural   Pt2RhCl
_chemical_formula_sum   'Pt6 Rh3 Cl3'
_cell_volume   191.67
_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
  Rh  Rh0  3  0.0  0.0  0.24  1.0
  Pt  Pt1  3  0.0  0.0  0.41  1.0
  Pt  Pt2  3  0.0  0.0  0.83  1.0
  Cl  Cl3  3  0.0  0.0  -0.0  1.0

Pt Pt Rh Cl
Pt Pt Rh Cl 0 3 o o o 1 2 o o o 
RhPt2Cl crystallizes in the trigonal R3m space group. Rh(1) is bonded in a 5-coordinate geometry to one Pt(2) and four equivalent Cl(1) atoms. The Rh(1)-Pt(2) bond length is 1.90 Å. There is one shorter (2.64 Å) and three longer (2.78 Å) Rh(1)-Cl(1) bond lengths. There are two inequivalent Pt sites. In the first Pt site, Pt(1) is bonded in a single-bond geometry to one Cl(1) atom. The Pt(1)-Cl(1) bond length is 1.90 Å. In the second Pt site, Pt(2) is bonded in a 4-coordinate geometry to one Rh(1) and three equivalent Cl(1) atoms. All Pt(2)-Cl(1) bond lengths are 2.74 Å. Cl(1) is bonded in a distorted single-bond geometry to four equivalent Rh(1), one Pt(1), and three equivalent Pt(2) atoms.