data_HfOsPt2
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   4.51
_cell_length_b   4.51
_cell_length_c   4.51
_cell_angle_alpha   60.0
_cell_angle_beta   60.0
_cell_angle_gamma   60.0
_symmetry_Int_Tables_number   1
_chemical_formula_structural   HfOsPt2
_chemical_formula_sum   'Hf1 Os1 Pt2'
_cell_volume   65.05
_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
  Hf  Hf0  1  0.0  0.0  0.0  1.0
  Os  Os1  1  0.19  0.19  0.19  1.0
  Pt  Pt2  1  0.79  0.79  0.79  1.0
  Pt  Pt3  1  0.6  0.6  0.6  1.0

data_HfOsPt2
_symmetry_space_group_name_H-M   R3m
_cell_length_a   4.51
_cell_length_b   4.51
_cell_length_c   11.06
_cell_angle_alpha   90.0
_cell_angle_beta   90.0
_cell_angle_gamma   120.0
_symmetry_Int_Tables_number   160
_chemical_formula_structural   HfOsPt2
_chemical_formula_sum   'Hf3 Os3 Pt6'
_cell_volume   195.16
_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
  Hf  Hf0  3  0.0  0.0  0.0  1.0
  Os  Os1  3  0.0  0.0  0.81  1.0
  Pt  Pt2  3  0.0  0.0  0.21  1.0
  Pt  Pt3  3  0.0  0.0  0.4  1.0

Hf Os Pt Pt
Hf Os Pt Pt 0 2 - - - 0 3 - - o 0 3 - o - 0 3 o - - 0 1 o o o 1 2 - - o 1 2 - o - 1 2 o - - 1 3 - o o 1 3 o - o 1 3 o o - 2 3 o o o 
HfOsPt2 crystallizes in the trigonal R3m space group. Hf(1) is bonded in a 2-coordinate geometry to one Os(1), one Pt(1), and three equivalent Pt(2) atoms. The Hf(1)-Os(1) bond length is 2.12 Å. The Hf(1)-Pt(1) bond length is 2.34 Å. All Hf(1)-Pt(2) bond lengths are 2.72 Å. Os(1) is bonded in a single-bond geometry to one Hf(1) and three equivalent Pt(2) atoms. All Os(1)-Pt(2) bond lengths are 2.72 Å. There are two inequivalent Pt sites. In the first Pt site, Pt(1) is bonded in a distorted single-bond geometry to one Hf(1) and one Pt(2) atom. The Pt(1)-Pt(2) bond length is 2.12 Å. In the second Pt site, Pt(2) is bonded in a 7-coordinate geometry to three equivalent Hf(1), three equivalent Os(1), and one Pt(1) atom.