data_Ge3Pt
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   5.24
_cell_length_b   5.24
_cell_length_c   5.24
_cell_angle_alpha   90.0
_cell_angle_beta   90.0
_cell_angle_gamma   90.0
_symmetry_Int_Tables_number   1
_chemical_formula_structural   Ge3Pt
_chemical_formula_sum   'Ge6 Pt2'
_cell_volume   143.78
_cell_formula_units_Z   2
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  0.62  0.93  0.0  1.0
  Ge  Ge1  1  0.62  0.31  0.0  1.0
  Ge  Ge2  1  0.93  0.0  0.62  1.0
  Ge  Ge3  1  0.0  0.62  0.93  1.0
  Ge  Ge4  1  0.0  0.62  0.31  1.0
  Ge  Ge5  1  0.31  0.0  0.62  1.0
  Pt  Pt6  1  0.62  0.62  0.62  1.0
  Pt  Pt7  1  0.0  0.0  0.0  1.0

data_Ge3Pt
_symmetry_space_group_name_H-M   R3
_cell_length_a   7.41
_cell_length_b   7.41
_cell_length_c   9.07
_cell_angle_alpha   90.0
_cell_angle_beta   90.0
_cell_angle_gamma   120.0
_symmetry_Int_Tables_number   146
_chemical_formula_structural   Ge3Pt
_chemical_formula_sum   'Ge18 Pt6'
_cell_volume   431.33
_cell_formula_units_Z   6
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  'x+1/3, y+2/3, z+2/3'
  5  '-y+1/3, x-y+2/3, z+2/3'
  6  '-x+y+1/3, -x+2/3, z+2/3'
  7  'x+2/3, y+1/3, z+1/3'
  8  '-y+2/3, x-y+1/3, z+1/3'
  9  '-x+y+2/3, -x+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  9  0.0  0.69  0.31  1.0
  Ge  Ge1  9  0.08  0.23  0.85  1.0
  Pt  Pt2  3  0.0  0.0  0.0  1.0
  Pt  Pt3  3  0.0  0.0  0.62  1.0

Ge Ge Ge Ge Ge Ge Pt Pt
PtGe3 crystallizes in the trigonal R3 space group. There are two inequivalent Pt sites. In the first Pt site, Pt(1) is bonded in a distorted hexagonal planar geometry to three equivalent Ge(1) and three equivalent Ge(2) atoms. All Pt(1)-Ge(1) bond lengths are 2.57 Å. All Pt(1)-Ge(2) bond lengths are 2.57 Å. In the second Pt site, Pt(2) is bonded in a 3-coordinate geometry to three equivalent Ge(1) and three equivalent Ge(2) atoms. All Pt(2)-Ge(1) bond lengths are 2.03 Å. All Pt(2)-Ge(2) bond lengths are 2.57 Å. There are two inequivalent Ge sites. In the first Ge site, Ge(1) is bonded in a 1-coordinate geometry to one Pt(1), one Pt(2), and two equivalent Ge(2) atoms. There is one shorter (1.99 Å) and one longer (2.60 Å) Ge(1)-Ge(2) bond length. In the second Ge site, Ge(2) is bonded in a 4-coordinate geometry to one Pt(1), one Pt(2), and two equivalent Ge(1) atoms.