data_Ge3Pt
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   4.64
_cell_length_b   4.64
_cell_length_c   4.64
_cell_angle_alpha   60.0
_cell_angle_beta   60.0
_cell_angle_gamma   60.0
_symmetry_Int_Tables_number   1
_chemical_formula_structural   Ge3Pt
_chemical_formula_sum   'Ge3 Pt1'
_cell_volume   70.69
_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
  Ge  Ge0  1  0.92  0.92  0.92  1.0
  Ge  Ge1  1  0.64  0.64  0.64  1.0
  Ge  Ge2  1  0.0  0.0  0.0  1.0
  Pt  Pt3  1  0.28  0.28  0.28  1.0

data_Ge3Pt
_symmetry_space_group_name_H-M   R3m
_cell_length_a   4.64
_cell_length_b   4.64
_cell_length_c   11.37
_cell_angle_alpha   90.0
_cell_angle_beta   90.0
_cell_angle_gamma   120.0
_symmetry_Int_Tables_number   160
_chemical_formula_structural   Ge3Pt
_chemical_formula_sum   'Ge9 Pt3'
_cell_volume   212.08
_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
  Ge  Ge0  3  0.0  0.0  0.0  1.0
  Ge  Ge1  3  0.0  0.0  0.08  1.0
  Ge  Ge2  3  0.0  0.0  0.36  1.0
  Pt  Pt3  3  0.0  0.0  0.72  1.0

Ge Ge Ge Pt
PtGe3 crystallizes in the trigonal R3m space group. Pt(1) is bonded in a 10-coordinate geometry to three equivalent Ge(1), three equivalent Ge(2), and four equivalent Ge(3) atoms. All Pt(1)-Ge(1) bond lengths are 2.70 Å. All Pt(1)-Ge(2) bond lengths are 2.70 Å. There are three shorter (2.74 Å) and one longer (3.20 Å) Pt(1)-Ge(3) bond length. There are three inequivalent Ge sites. In the first Ge site, Ge(1) is bonded in a single-bond geometry to three equivalent Pt(1) and one Ge(3) atom. The Ge(1)-Ge(3) bond length is 0.88 Å. In the second Ge site, Ge(2) is bonded in a distorted trigonal planar geometry to three equivalent Pt(1) atoms. In the third Ge site, Ge(3) is bonded in a single-bond geometry to four equivalent Pt(1) and one Ge(1) atom.