The crystal structure described by Ba4Pt3Ge20 crystallizes in the cubic Pm-3n space group. There are two inequivalent Ba sites. In the first Ba site, Ba(1) is bonded in a 20-coordinate geometry to eight equivalent Ge(1) and twelve equivalent Ge(2) atoms. In the second Ba site, Ba(2) is bonded in a 12-coordinate geometry to four equivalent Pt(1) and eight equivalent Ge(2) atoms. Pt(1) is bonded to four equivalent Ba(2) and four equivalent Ge(2) atoms to form a mixture of edge and corner-sharing PtBa4Ge4 tetrahedra. There are two inequivalent Ge sites. In the first Ge site, Ge(1) is bonded in a 5-coordinate geometry to one Ba(1), one Ge(1), and three equivalent Ge(2) atoms. In the second Ge site, Ge(2) is bonded in a 1-coordinate geometry to one Ba(1), two equivalent Ba(2), one Pt(1), and two equivalent Ge(1) atoms. is represented by the CIF file [CIF]
data_Ba4Ge20Pt3
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   10.896
_cell_length_b   10.896
_cell_length_c   10.896
_cell_angle_alpha   90.000
_cell_angle_beta   90.000
_cell_angle_gamma   90.000
_symmetry_Int_Tables_number   1
_cell_volume   1293.528
_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
  Ba  Ba0  1  0.500  0.500  0.500  1.0
  Ba  Ba1  1  0.000  0.000  0.000  1.0
  Ba  Ba2  1  0.000  0.250  0.500  1.0
  Ba  Ba3  1  0.750  0.500  0.000  1.0
  Ba  Ba4  1  0.500  0.000  0.750  1.0
  Ba  Ba5  1  0.000  0.750  0.500  1.0
  Ba  Ba6  1  0.250  0.500  0.000  1.0
  Ba  Ba7  1  0.500  0.000  0.250  1.0
  Ge  Ge8  1  0.683  0.317  0.683  1.0
  Ge  Ge9  1  0.317  0.683  0.317  1.0
  Ge  Ge10  1  0.683  0.683  0.317  1.0
  Ge  Ge11  1  0.317  0.317  0.683  1.0
  Ge  Ge12  1  0.317  0.683  0.683  1.0
  Ge  Ge13  1  0.683  0.317  0.317  1.0
  Ge  Ge14  1  0.317  0.317  0.317  1.0
  Ge  Ge15  1  0.683  0.683  0.683  1.0
  Ge  Ge16  1  0.183  0.183  0.817  1.0
  Ge  Ge17  1  0.817  0.817  0.183  1.0
  Ge  Ge18  1  0.183  0.817  0.183  1.0
  Ge  Ge19  1  0.817  0.183  0.817  1.0
  Ge  Ge20  1  0.817  0.183  0.183  1.0
  Ge  Ge21  1  0.183  0.817  0.817  1.0
  Ge  Ge22  1  0.817  0.817  0.817  1.0
  Ge  Ge23  1  0.183  0.183  0.183  1.0
  Ge  Ge24  1  0.620  0.184  0.500  1.0
  Ge  Ge25  1  0.816  0.500  0.620  1.0
  Ge  Ge26  1  0.500  0.380  0.816  1.0
  Ge  Ge27  1  0.380  0.816  0.500  1.0
  Ge  Ge28  1  0.184  0.500  0.380  1.0
  Ge  Ge29  1  0.500  0.620  0.184  1.0
  Ge  Ge30  1  0.620  0.816  0.500  1.0
  Ge  Ge31  1  0.816  0.500  0.380  1.0
  Ge  Ge32  1  0.380  0.184  0.500  1.0
  Ge  Ge33  1  0.184  0.500  0.620  1.0
  Ge  Ge34  1  0.500  0.620  0.816  1.0
  Ge  Ge35  1  0.500  0.380  0.184  1.0
  Ge  Ge36  1  0.120  0.000  0.684  1.0
  Ge  Ge37  1  0.316  0.120  0.000  1.0
  Ge  Ge38  1  0.000  0.316  0.880  1.0
  Ge  Ge39  1  0.880  0.000  0.316  1.0
  Ge  Ge40  1  0.684  0.880  0.000  1.0
  Ge  Ge41  1  0.000  0.684  0.120  1.0
  Ge  Ge42  1  0.120  0.000  0.316  1.0
  Ge  Ge43  1  0.316  0.880  0.000  1.0
  Ge  Ge44  1  0.880  0.000  0.684  1.0
  Ge  Ge45  1  0.684  0.120  0.000  1.0
  Ge  Ge46  1  0.000  0.316  0.120  1.0
  Ge  Ge47  1  0.000  0.684  0.880  1.0
  Pt  Pt48  1  0.000  0.500  0.750  1.0
  Pt  Pt49  1  0.500  0.250  0.000  1.0
  Pt  Pt50  1  0.750  0.000  0.500  1.0
  Pt  Pt51  1  0.000  0.500  0.250  1.0
  Pt  Pt52  1  0.500  0.750  0.000  1.0
  Pt  Pt53  1  0.250  0.000  0.500  1.0
[/CIF]
.
The crystal structure described by Ba4Pt3Ge20 crystallizes in the cubic Pm-3n space group. There are two inequivalent Ba sites. In the first Ba site, Ba(1) is bonded in a 20-coordinate geometry to eight equivalent Ge(1) and twelve equivalent Ge(2) atoms. In the second Ba site, Ba(2) is bonded in a 12-coordinate geometry to four equivalent Pt(1) and eight equivalent Ge(2) atoms. Pt(1) is bonded to four equivalent Ba(2) and four equivalent Ge(2) atoms to form a mixture of edge and corner-sharing PtBa4Ge4 tetrahedra. There are two inequivalent Ge sites. In the first Ge site, Ge(1) is bonded in a 5-coordinate geometry to one Ba(1), one Ge(1), and three equivalent Ge(2) atoms. In the second Ge site, Ge(2) is bonded in a 1-coordinate geometry to one Ba(1), two equivalent Ba(2), one Pt(1), and two equivalent Ge(1) atoms. is represented by the CIF file [CIF]
data_Ba4Ge20Pt3
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   10.896
_cell_length_b   10.896
_cell_length_c   10.896
_cell_angle_alpha   90.000
_cell_angle_beta   90.000
_cell_angle_gamma   90.000
_symmetry_Int_Tables_number   1
_cell_volume   1293.528
_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
  Ba  Ba0  1  0.500  0.500  0.500  1.0
  Ba  Ba1  1  0.000  0.000  0.000  1.0
  Ba  Ba2  1  0.000  0.250  0.500  1.0
  Ba  Ba3  1  0.750  0.500  0.000  1.0
  Ba  Ba4  1  0.500  0.000  0.750  1.0
  Ba  Ba5  1  0.000  0.750  0.500  1.0
  Ba  Ba6  1  0.250  0.500  0.000  1.0
  Ba  Ba7  1  0.500  0.000  0.250  1.0
  Ge  Ge8  1  0.683  0.317  0.683  1.0
  Ge  Ge9  1  0.317  0.683  0.317  1.0
  Ge  Ge10  1  0.683  0.683  0.317  1.0
  Ge  Ge11  1  0.317  0.317  0.683  1.0
  Ge  Ge12  1  0.317  0.683  0.683  1.0
  Ge  Ge13  1  0.683  0.317  0.317  1.0
  Ge  Ge14  1  0.317  0.317  0.317  1.0
  Ge  Ge15  1  0.683  0.683  0.683  1.0
  Ge  Ge16  1  0.183  0.183  0.817  1.0
  Ge  Ge17  1  0.817  0.817  0.183  1.0
  Ge  Ge18  1  0.183  0.817  0.183  1.0
  Ge  Ge19  1  0.817  0.183  0.817  1.0
  Ge  Ge20  1  0.817  0.183  0.183  1.0
  Ge  Ge21  1  0.183  0.817  0.817  1.0
  Ge  Ge22  1  0.817  0.817  0.817  1.0
  Ge  Ge23  1  0.183  0.183  0.183  1.0
  Ge  Ge24  1  0.620  0.184  0.500  1.0
  Ge  Ge25  1  0.816  0.500  0.620  1.0
  Ge  Ge26  1  0.500  0.380  0.816  1.0
  Ge  Ge27  1  0.380  0.816  0.500  1.0
  Ge  Ge28  1  0.184  0.500  0.380  1.0
  Ge  Ge29  1  0.500  0.620  0.184  1.0
  Ge  Ge30  1  0.620  0.816  0.500  1.0
  Ge  Ge31  1  0.816  0.500  0.380  1.0
  Ge  Ge32  1  0.380  0.184  0.500  1.0
  Ge  Ge33  1  0.184  0.500  0.620  1.0
  Ge  Ge34  1  0.500  0.620  0.816  1.0
  Ge  Ge35  1  0.500  0.380  0.184  1.0
  Ge  Ge36  1  0.120  0.000  0.684  1.0
  Ge  Ge37  1  0.316  0.120  0.000  1.0
  Ge  Ge38  1  0.000  0.316  0.880  1.0
  Ge  Ge39  1  0.880  0.000  0.316  1.0
  Ge  Ge40  1  0.684  0.880  0.000  1.0
  Ge  Ge41  1  0.000  0.684  0.120  1.0
  Ge  Ge42  1  0.120  0.000  0.316  1.0
  Ge  Ge43  1  0.316  0.880  0.000  1.0
  Ge  Ge44  1  0.880  0.000  0.684  1.0
  Ge  Ge45  1  0.684  0.120  0.000  1.0
  Ge  Ge46  1  0.000  0.316  0.120  1.0
  Ge  Ge47  1  0.000  0.684  0.880  1.0
  Pt  Pt48  1  0.000  0.500  0.750  1.0
  Pt  Pt49  1  0.500  0.250  0.000  1.0
  Pt  Pt50  1  0.750  0.000  0.500  1.0
  Pt  Pt51  1  0.000  0.500  0.250  1.0
  Pt  Pt52  1  0.500  0.750  0.000  1.0
  Pt  Pt53  1  0.250  0.000  0.500  1.0
[/CIF]
.