The structure described by Na4Al3Ge3O13 crystallizes in the trigonal R3c space group. There are two inequivalent Na sites. In the first Na site, Na(1) is bonded in a trigonal non-coplanar geometry to three equivalent O(1) atoms. In the second Na site, Na(2) is bonded to one O(2), one O(3), one O(4), and one O(5) atom to form distorted NaO4 tetrahedra that share corners with two equivalent Na(2)O4 tetrahedra, corners with three equivalent Al(1)O4 tetrahedra, and corners with three equivalent Ge(1)O4 tetrahedra. Al(1) is bonded to one O(1), one O(2), one O(3), and one O(4) atom to form AlO4 tetrahedra that share corners with three equivalent Na(2)O4 tetrahedra and corners with four equivalent Ge(1)O4 tetrahedra. Ge(1) is bonded to one O(1), one O(2), one O(3), and one O(4) atom to form GeO4 tetrahedra that share corners with three equivalent Na(2)O4 tetrahedra and corners with four equivalent Al(1)O4 tetrahedra. There are five inequivalent O sites. In the first O site, O(3) is bonded in a trigonal planar geometry to one Na(2), one Al(1), and one Ge(1) atom. In the second O site, O(4) is bonded in a distorted trigonal planar geometry to one Na(2), one Al(1), and one Ge(1) atom. In the third O site, O(5) is bonded in a trigonal planar geometry to three equivalent Na(2) atoms. In the fourth O site, O(1) is bonded in a trigonal planar geometry to one Na(1), one Al(1), and one Ge(1) atom. In the fifth O site, O(2) is bonded in a trigonal planar geometry to one Na(2), one Al(1), and one Ge(1) atom. is represented by the Crystallographic Information File (CIF) [CIF]
data_Na4Al3Ge3O13
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   9.103
_cell_length_b   9.103
_cell_length_c   9.103
_cell_angle_alpha   89.662
_cell_angle_beta   89.662
_cell_angle_gamma   89.662
_symmetry_Int_Tables_number   1
_cell_volume   754.304
_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
  Na  Na0  1  0.318  0.318  0.318  1.0
  Na  Na1  1  0.349  0.666  0.666  1.0
  Na  Na2  1  0.666  0.349  0.666  1.0
  Na  Na3  1  0.666  0.666  0.349  1.0
  Na  Na4  1  0.166  0.849  0.166  1.0
  Na  Na5  1  0.849  0.166  0.166  1.0
  Na  Na6  1  0.818  0.818  0.818  1.0
  Na  Na7  1  0.166  0.166  0.849  1.0
  Al  Al8  1  0.251  0.503  1.000  1.0
  Al  Al9  1  0.503  1.000  0.251  1.0
  Al  Al10  1  1.000  0.251  0.503  1.0
  Al  Al11  1  0.500  0.003  0.751  1.0
  Al  Al12  1  0.003  0.751  0.500  1.0
  Al  Al13  1  0.751  0.500  0.003  1.0
  Ge  Ge14  1  0.251  1.000  0.503  1.0
  Ge  Ge15  1  1.000  0.503  0.251  1.0
  Ge  Ge16  1  0.503  0.251  1.000  1.0
  Ge  Ge17  1  0.003  0.500  0.751  1.0
  Ge  Ge18  1  0.500  0.751  0.003  1.0
  Ge  Ge19  1  0.751  0.003  0.500  1.0
  O  O20  1  0.361  0.360  0.076  1.0
  O  O21  1  0.360  0.076  0.361  1.0
  O  O22  1  0.076  0.361  0.360  1.0
  O  O23  1  0.358  0.647  0.925  1.0
  O  O24  1  0.357  0.925  0.646  1.0
  O  O25  1  0.079  0.643  0.643  1.0
  O  O26  1  0.646  0.357  0.925  1.0
  O  O27  1  0.643  0.079  0.643  1.0
  O  O28  1  0.925  0.358  0.647  1.0
  O  O29  1  0.643  0.643  0.079  1.0
  O  O30  1  0.647  0.925  0.358  1.0
  O  O31  1  0.925  0.646  0.357  1.0
  O  O32  1  0.425  0.857  0.146  1.0
  O  O33  1  0.143  0.579  0.143  1.0
  O  O34  1  0.147  0.858  0.425  1.0
  O  O35  1  0.579  0.143  0.143  1.0
  O  O36  1  0.858  0.425  0.147  1.0
  O  O37  1  0.857  0.146  0.425  1.0
  O  O38  1  0.576  0.860  0.861  1.0
  O  O39  1  0.861  0.576  0.860  1.0
  O  O40  1  0.860  0.861  0.576  1.0
  O  O41  1  0.425  0.147  0.858  1.0
  O  O42  1  0.146  0.425  0.857  1.0
  O  O43  1  0.143  0.143  0.579  1.0
  O  O44  1  0.047  0.047  0.047  1.0
  O  O45  1  0.547  0.547  0.547  1.0
[/CIF]
.
The structure described by Na4Al3Ge3O13 crystallizes in the trigonal R3c space group. There are two inequivalent Na sites. In the first Na site, Na(1) is bonded in a trigonal non-coplanar geometry to three equivalent O(1) atoms. In the second Na site, Na(2) is bonded to one O(2), one O(3), one O(4), and one O(5) atom to form distorted NaO4 tetrahedra that share corners with two equivalent Na(2)O4 tetrahedra, corners with three equivalent Al(1)O4 tetrahedra, and corners with three equivalent Ge(1)O4 tetrahedra. Al(1) is bonded to one O(1), one O(2), one O(3), and one O(4) atom to form AlO4 tetrahedra that share corners with three equivalent Na(2)O4 tetrahedra and corners with four equivalent Ge(1)O4 tetrahedra. Ge(1) is bonded to one O(1), one O(2), one O(3), and one O(4) atom to form GeO4 tetrahedra that share corners with three equivalent Na(2)O4 tetrahedra and corners with four equivalent Al(1)O4 tetrahedra. There are five inequivalent O sites. In the first O site, O(3) is bonded in a trigonal planar geometry to one Na(2), one Al(1), and one Ge(1) atom. In the second O site, O(4) is bonded in a distorted trigonal planar geometry to one Na(2), one Al(1), and one Ge(1) atom. In the third O site, O(5) is bonded in a trigonal planar geometry to three equivalent Na(2) atoms. In the fourth O site, O(1) is bonded in a trigonal planar geometry to one Na(1), one Al(1), and one Ge(1) atom. In the fifth O site, O(2) is bonded in a trigonal planar geometry to one Na(2), one Al(1), and one Ge(1) atom. is represented by the Crystallographic Information File (CIF) [CIF]
data_Na4Al3Ge3O13
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   9.103
_cell_length_b   9.103
_cell_length_c   9.103
_cell_angle_alpha   89.662
_cell_angle_beta   89.662
_cell_angle_gamma   89.662
_symmetry_Int_Tables_number   1
_cell_volume   754.304
_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
  Na  Na0  1  0.318  0.318  0.318  1.0
  Na  Na1  1  0.349  0.666  0.666  1.0
  Na  Na2  1  0.666  0.349  0.666  1.0
  Na  Na3  1  0.666  0.666  0.349  1.0
  Na  Na4  1  0.166  0.849  0.166  1.0
  Na  Na5  1  0.849  0.166  0.166  1.0
  Na  Na6  1  0.818  0.818  0.818  1.0
  Na  Na7  1  0.166  0.166  0.849  1.0
  Al  Al8  1  0.251  0.503  1.000  1.0
  Al  Al9  1  0.503  1.000  0.251  1.0
  Al  Al10  1  1.000  0.251  0.503  1.0
  Al  Al11  1  0.500  0.003  0.751  1.0
  Al  Al12  1  0.003  0.751  0.500  1.0
  Al  Al13  1  0.751  0.500  0.003  1.0
  Ge  Ge14  1  0.251  1.000  0.503  1.0
  Ge  Ge15  1  1.000  0.503  0.251  1.0
  Ge  Ge16  1  0.503  0.251  1.000  1.0
  Ge  Ge17  1  0.003  0.500  0.751  1.0
  Ge  Ge18  1  0.500  0.751  0.003  1.0
  Ge  Ge19  1  0.751  0.003  0.500  1.0
  O  O20  1  0.361  0.360  0.076  1.0
  O  O21  1  0.360  0.076  0.361  1.0
  O  O22  1  0.076  0.361  0.360  1.0
  O  O23  1  0.358  0.647  0.925  1.0
  O  O24  1  0.357  0.925  0.646  1.0
  O  O25  1  0.079  0.643  0.643  1.0
  O  O26  1  0.646  0.357  0.925  1.0
  O  O27  1  0.643  0.079  0.643  1.0
  O  O28  1  0.925  0.358  0.647  1.0
  O  O29  1  0.643  0.643  0.079  1.0
  O  O30  1  0.647  0.925  0.358  1.0
  O  O31  1  0.925  0.646  0.357  1.0
  O  O32  1  0.425  0.857  0.146  1.0
  O  O33  1  0.143  0.579  0.143  1.0
  O  O34  1  0.147  0.858  0.425  1.0
  O  O35  1  0.579  0.143  0.143  1.0
  O  O36  1  0.858  0.425  0.147  1.0
  O  O37  1  0.857  0.146  0.425  1.0
  O  O38  1  0.576  0.860  0.861  1.0
  O  O39  1  0.861  0.576  0.860  1.0
  O  O40  1  0.860  0.861  0.576  1.0
  O  O41  1  0.425  0.147  0.858  1.0
  O  O42  1  0.146  0.425  0.857  1.0
  O  O43  1  0.143  0.143  0.579  1.0
  O  O44  1  0.047  0.047  0.047  1.0
  O  O45  1  0.547  0.547  0.547  1.0
[/CIF]
.