data_CeHo2Pt
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   5.17
_cell_length_b   5.17
_cell_length_c   5.17
_cell_angle_alpha   60.0
_cell_angle_beta   60.0
_cell_angle_gamma   60.0
_symmetry_Int_Tables_number   1
_chemical_formula_structural   CeHo2Pt
_chemical_formula_sum   'Ce1 Ho2 Pt1'
_cell_volume   97.44
_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
  Ce  Ce0  1  0.0  0.0  0.0  1.0
  Ho  Ho1  1  0.48  0.48  0.48  1.0
  Ho  Ho2  1  0.83  0.83  0.83  1.0
  Pt  Pt3  1  0.65  0.65  0.65  1.0

data_CeHo2Pt
_symmetry_space_group_name_H-M   R3m
_cell_length_a   5.17
_cell_length_b   5.17
_cell_length_c   12.65
_cell_angle_alpha   90.0
_cell_angle_beta   90.0
_cell_angle_gamma   120.0
_symmetry_Int_Tables_number   160
_chemical_formula_structural   CeHo2Pt
_chemical_formula_sum   'Ce3 Ho6 Pt3'
_cell_volume   292.31
_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
  Ce  Ce0  3  0.0  0.0  0.0  1.0
  Ho  Ho1  3  0.0  0.0  0.17  1.0
  Ho  Ho2  3  0.0  0.0  0.52  1.0
  Pt  Pt3  3  0.0  0.0  0.35  1.0

Ce Ho Ho Pt
Ce Ho Ho Pt 0 2 - - - 1 3 o o o 2 3 o o o 
Ho2CePt crystallizes in the trigonal R3m space group. There are two inequivalent Ho sites. In the first Ho site, Ho(1) is bonded in a single-bond geometry to one Pt(1) atom. The Ho(1)-Pt(1) bond length is 2.20 Å. In the second Ho site, Ho(2) is bonded in a distorted linear geometry to one Ce(1) and one Pt(1) atom. The Ho(2)-Ce(1) bond length is 2.20 Å. The Ho(2)-Pt(1) bond length is 2.20 Å. Ce(1) is bonded to one Ho(2) and three equivalent Pt(1) atoms to form distorted CeHoPt3 trigonal pyramids that share  a cornercorner with one Pt(1)Ce3Ho2 trigonal bipyramid and corners with six equivalent Ce(1)HoPt3 trigonal pyramids. All Ce(1)-Pt(1) bond lengths are 2.99 Å. Pt(1) is bonded to one Ho(1), one Ho(2), and three equivalent Ce(1) atoms to form distorted PtCe3Ho2 trigonal bipyramids that share corners with six equivalent Pt(1)Ce3Ho2 trigonal bipyramids and  a cornercorner with one Ce(1)HoPt3 trigonal pyramid.