data_HoPt2Rh
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   4.6
_cell_length_b   4.6
_cell_length_c   4.6
_cell_angle_alpha   60.0
_cell_angle_beta   60.0
_cell_angle_gamma   60.0
_symmetry_Int_Tables_number   1
_chemical_formula_structural   HoPt2Rh
_chemical_formula_sum   'Ho1 Pt2 Rh1'
_cell_volume   68.8
_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
  Ho  Ho0  1  0.25  0.25  0.25  1.0
  Pt  Pt1  1  0.63  0.63  0.63  1.0
  Pt  Pt2  1  0.88  0.88  0.88  1.0
  Rh  Rh3  1  0.0  0.0  0.0  1.0

data_HoPt2Rh
_symmetry_space_group_name_H-M   R3m
_cell_length_a   4.6
_cell_length_b   4.6
_cell_length_c   11.27
_cell_angle_alpha   90.0
_cell_angle_beta   90.0
_cell_angle_gamma   120.0
_symmetry_Int_Tables_number   160
_chemical_formula_structural   HoPt2Rh
_chemical_formula_sum   'Ho3 Pt6 Rh3'
_cell_volume   206.39
_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
  Ho  Ho0  3  0.0  0.0  0.75  1.0
  Rh  Rh1  3  0.0  0.0  0.0  1.0
  Pt  Pt2  3  0.0  0.0  0.12  1.0
  Pt  Pt3  3  0.0  0.0  0.37  1.0

Ho Pt Pt Rh
Ho Pt Pt Rh 0 3 o o o 0 3 o o + 0 3 o + o 0 3 + o o 0 2 - - o 0 2 - o - 0 2 o - - 0 1 - o o 0 1 o - o 0 1 o o - 1 3 o + + 1 3 + o + 1 3 + + o 1 2 - o o 1 2 o - o 1 2 o o - 1 2 o o o 2 3 + + + 
HoRhPt2 crystallizes in the trigonal R3m space group. Ho(1) is bonded in a 10-coordinate geometry to four equivalent Rh(1), three equivalent Pt(1), and three equivalent Pt(2) atoms. There are three shorter (2.81 Å) and one longer (2.84 Å) Ho(1)-Rh(1) bond length. All Ho(1)-Pt(1) bond lengths are 2.69 Å. All Ho(1)-Pt(2) bond lengths are 2.69 Å. Rh(1) is bonded in a 2-coordinate geometry to four equivalent Ho(1) and one Pt(2) atom. The Rh(1)-Pt(2) bond length is 1.37 Å. There are two inequivalent Pt sites. In the first Pt site, Pt(1) is bonded in a distorted trigonal planar geometry to three equivalent Ho(1) atoms. In the second Pt site, Pt(2) is bonded in a 1-coordinate geometry to three equivalent Ho(1) and one Rh(1) atom.