The compound described by CsNa2Ge17 crystallizes in the cubic Fd-3m space group. Cs(1) is bonded in a 12-coordinate geometry to four equivalent Ge(2) and twenty-four equivalent Ge(3) atoms. Na(1) is bonded in a 20-coordinate geometry to two equivalent Ge(1), six equivalent Ge(2), and twelve equivalent Ge(3) atoms. There are three inequivalent Ge sites. In the first Ge site, Ge(3) is bonded to two equivalent Cs(1), two equivalent Na(1), one Ge(2), and three equivalent Ge(3) atoms to form a mixture of distorted edge, face, and corner-sharing GeCs2Na2Ge4 tetrahedra. In the second Ge site, Ge(1) is bonded in a body-centered cubic geometry to four equivalent Na(1) and four equivalent Ge(2) atoms. In the third Ge site, Ge(2) is bonded in a 7-coordinate geometry to one Cs(1), three equivalent Na(1), one Ge(1), and three equivalent Ge(3) atoms. is represented by the CIF file [CIF]
data_CsNa2Ge17
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   10.995
_cell_length_b   10.995
_cell_length_c   10.995
_cell_angle_alpha   60.002
_cell_angle_beta   60.002
_cell_angle_gamma   60.002
_symmetry_Int_Tables_number   1
_cell_volume   939.899
_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
  Cs  Cs0  1  0.000  0.000  0.000  1.0
  Cs  Cs1  1  0.250  0.250  0.250  1.0
  Na  Na2  1  0.125  0.625  0.625  1.0
  Na  Na3  1  0.625  0.125  0.625  1.0
  Na  Na4  1  0.625  0.625  0.125  1.0
  Na  Na5  1  0.625  0.625  0.625  1.0
  Ge  Ge6  1  0.500  0.500  0.500  1.0
  Ge  Ge7  1  0.750  0.750  0.750  1.0
  Ge  Ge8  1  0.778  0.407  0.407  1.0
  Ge  Ge9  1  0.407  0.778  0.407  1.0
  Ge  Ge10  1  0.407  0.407  0.778  1.0
  Ge  Ge11  1  0.407  0.407  0.407  1.0
  Ge  Ge12  1  0.472  0.843  0.843  1.0
  Ge  Ge13  1  0.843  0.472  0.843  1.0
  Ge  Ge14  1  0.843  0.843  0.472  1.0
  Ge  Ge15  1  0.843  0.843  0.843  1.0
  Ge  Ge16  1  0.860  0.255  0.255  1.0
  Ge  Ge17  1  0.255  0.860  0.631  1.0
  Ge  Ge18  1  0.255  0.631  0.860  1.0
  Ge  Ge19  1  0.631  0.255  0.255  1.0
  Ge  Ge20  1  0.255  0.255  0.860  1.0
  Ge  Ge21  1  0.860  0.631  0.255  1.0
  Ge  Ge22  1  0.631  0.860  0.255  1.0
  Ge  Ge23  1  0.255  0.255  0.631  1.0
  Ge  Ge24  1  0.255  0.860  0.255  1.0
  Ge  Ge25  1  0.631  0.255  0.860  1.0
  Ge  Ge26  1  0.860  0.255  0.631  1.0
  Ge  Ge27  1  0.255  0.631  0.255  1.0
  Ge  Ge28  1  0.390  0.995  0.995  1.0
  Ge  Ge29  1  0.995  0.390  0.619  1.0
  Ge  Ge30  1  0.995  0.619  0.390  1.0
  Ge  Ge31  1  0.619  0.995  0.995  1.0
  Ge  Ge32  1  0.995  0.995  0.390  1.0
  Ge  Ge33  1  0.390  0.619  0.995  1.0
  Ge  Ge34  1  0.619  0.390  0.995  1.0
  Ge  Ge35  1  0.995  0.995  0.619  1.0
  Ge  Ge36  1  0.995  0.390  0.995  1.0
  Ge  Ge37  1  0.619  0.995  0.390  1.0
  Ge  Ge38  1  0.390  0.995  0.619  1.0
  Ge  Ge39  1  0.995  0.619  0.995  1.0
[/CIF]
.
The compound described by CsNa2Ge17 crystallizes in the cubic Fd-3m space group. Cs(1) is bonded in a 12-coordinate geometry to four equivalent Ge(2) and twenty-four equivalent Ge(3) atoms. Na(1) is bonded in a 20-coordinate geometry to two equivalent Ge(1), six equivalent Ge(2), and twelve equivalent Ge(3) atoms. There are three inequivalent Ge sites. In the first Ge site, Ge(3) is bonded to two equivalent Cs(1), two equivalent Na(1), one Ge(2), and three equivalent Ge(3) atoms to form a mixture of distorted edge, face, and corner-sharing GeCs2Na2Ge4 tetrahedra. In the second Ge site, Ge(1) is bonded in a body-centered cubic geometry to four equivalent Na(1) and four equivalent Ge(2) atoms. In the third Ge site, Ge(2) is bonded in a 7-coordinate geometry to one Cs(1), three equivalent Na(1), one Ge(1), and three equivalent Ge(3) atoms. is represented by the CIF file [CIF]
data_CsNa2Ge17
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   10.995
_cell_length_b   10.995
_cell_length_c   10.995
_cell_angle_alpha   60.002
_cell_angle_beta   60.002
_cell_angle_gamma   60.002
_symmetry_Int_Tables_number   1
_cell_volume   939.899
_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
  Cs  Cs0  1  0.000  0.000  0.000  1.0
  Cs  Cs1  1  0.250  0.250  0.250  1.0
  Na  Na2  1  0.125  0.625  0.625  1.0
  Na  Na3  1  0.625  0.125  0.625  1.0
  Na  Na4  1  0.625  0.625  0.125  1.0
  Na  Na5  1  0.625  0.625  0.625  1.0
  Ge  Ge6  1  0.500  0.500  0.500  1.0
  Ge  Ge7  1  0.750  0.750  0.750  1.0
  Ge  Ge8  1  0.778  0.407  0.407  1.0
  Ge  Ge9  1  0.407  0.778  0.407  1.0
  Ge  Ge10  1  0.407  0.407  0.778  1.0
  Ge  Ge11  1  0.407  0.407  0.407  1.0
  Ge  Ge12  1  0.472  0.843  0.843  1.0
  Ge  Ge13  1  0.843  0.472  0.843  1.0
  Ge  Ge14  1  0.843  0.843  0.472  1.0
  Ge  Ge15  1  0.843  0.843  0.843  1.0
  Ge  Ge16  1  0.860  0.255  0.255  1.0
  Ge  Ge17  1  0.255  0.860  0.631  1.0
  Ge  Ge18  1  0.255  0.631  0.860  1.0
  Ge  Ge19  1  0.631  0.255  0.255  1.0
  Ge  Ge20  1  0.255  0.255  0.860  1.0
  Ge  Ge21  1  0.860  0.631  0.255  1.0
  Ge  Ge22  1  0.631  0.860  0.255  1.0
  Ge  Ge23  1  0.255  0.255  0.631  1.0
  Ge  Ge24  1  0.255  0.860  0.255  1.0
  Ge  Ge25  1  0.631  0.255  0.860  1.0
  Ge  Ge26  1  0.860  0.255  0.631  1.0
  Ge  Ge27  1  0.255  0.631  0.255  1.0
  Ge  Ge28  1  0.390  0.995  0.995  1.0
  Ge  Ge29  1  0.995  0.390  0.619  1.0
  Ge  Ge30  1  0.995  0.619  0.390  1.0
  Ge  Ge31  1  0.619  0.995  0.995  1.0
  Ge  Ge32  1  0.995  0.995  0.390  1.0
  Ge  Ge33  1  0.390  0.619  0.995  1.0
  Ge  Ge34  1  0.619  0.390  0.995  1.0
  Ge  Ge35  1  0.995  0.995  0.619  1.0
  Ge  Ge36  1  0.995  0.390  0.995  1.0
  Ge  Ge37  1  0.619  0.995  0.390  1.0
  Ge  Ge38  1  0.390  0.995  0.619  1.0
  Ge  Ge39  1  0.995  0.619  0.995  1.0
[/CIF]
.