The crystal structure described by Na2GeTeO6 is Ilmenite-derived structured and crystallizes in the trigonal R3 space group. There are two inequivalent Na sites. In the first Na site, Na(1) is bonded to three equivalent O(1) and three equivalent O(2) atoms to form distorted NaO6 octahedra that share corners with three equivalent Ge(1)O6 octahedra, corners with six equivalent Te(1)O6 octahedra, edges with three equivalent Na(2)O6 octahedra, and  a faceface with one Ge(1)O6 octahedra. The corner-sharing octahedral tilt angles range from 37-58°. In the second Na site, Na(2) is bonded to three equivalent O(1) and three equivalent O(2) atoms to form distorted NaO6 octahedra that share corners with three equivalent Te(1)O6 octahedra, corners with six equivalent Ge(1)O6 octahedra, edges with three equivalent Na(1)O6 octahedra, and  a faceface with one Te(1)O6 octahedra. The corner-sharing octahedral tilt angles range from 37-59°. Ge(1) is bonded to three equivalent O(1) and three equivalent O(2) atoms to form GeO6 octahedra that share corners with three equivalent Na(1)O6 octahedra, corners with six equivalent Na(2)O6 octahedra, edges with three equivalent Te(1)O6 octahedra, and  a faceface with one Na(1)O6 octahedra. The corner-sharing octahedral tilt angles range from 37-58°. Te(1) is bonded to three equivalent O(1) and three equivalent O(2) atoms to form TeO6 octahedra that share corners with three equivalent Na(2)O6 octahedra, corners with six equivalent Na(1)O6 octahedra, edges with three equivalent Ge(1)O6 octahedra, and  a faceface with one Na(2)O6 octahedra. The corner-sharing octahedral tilt angles range from 37-59°. There are two inequivalent O sites. In the first O site, O(1) is bonded in a distorted see-saw-like geometry to one Na(1), one Na(2), one Ge(1), and one Te(1) atom. In the second O site, O(2) is bonded in a 4-coordinate geometry to one Na(1), one Na(2), one Ge(1), and one Te(1) atom. is represented by the Crystallographic Information File (CIF) [CIF]
data_Na2GeTeO6
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   6.171
_cell_length_b   6.171
_cell_length_c   6.171
_cell_angle_alpha   49.659
_cell_angle_beta   49.659
_cell_angle_gamma   49.659
_symmetry_Int_Tables_number   1
_cell_volume   125.533
_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
  Na  Na0  1  0.859  0.859  0.859  1.0
  Na  Na1  1  0.141  0.141  0.141  1.0
  Ge  Ge2  1  0.662  0.662  0.662  1.0
  Te  Te3  1  0.337  0.337  0.337  1.0
  O  O4  1  0.688  0.059  0.458  1.0
  O  O5  1  0.458  0.688  0.059  1.0
  O  O6  1  0.059  0.458  0.688  1.0
  O  O7  1  0.316  0.935  0.545  1.0
  O  O8  1  0.545  0.316  0.935  1.0
  O  O9  1  0.935  0.545  0.316  1.0
[/CIF]
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The crystal structure described by Na2GeTeO6 is Ilmenite-derived structured and crystallizes in the trigonal R3 space group. There are two inequivalent Na sites. In the first Na site, Na(1) is bonded to three equivalent O(1) and three equivalent O(2) atoms to form distorted NaO6 octahedra that share corners with three equivalent Ge(1)O6 octahedra, corners with six equivalent Te(1)O6 octahedra, edges with three equivalent Na(2)O6 octahedra, and  a faceface with one Ge(1)O6 octahedra. The corner-sharing octahedral tilt angles range from 37-58°. In the second Na site, Na(2) is bonded to three equivalent O(1) and three equivalent O(2) atoms to form distorted NaO6 octahedra that share corners with three equivalent Te(1)O6 octahedra, corners with six equivalent Ge(1)O6 octahedra, edges with three equivalent Na(1)O6 octahedra, and  a faceface with one Te(1)O6 octahedra. The corner-sharing octahedral tilt angles range from 37-59°. Ge(1) is bonded to three equivalent O(1) and three equivalent O(2) atoms to form GeO6 octahedra that share corners with three equivalent Na(1)O6 octahedra, corners with six equivalent Na(2)O6 octahedra, edges with three equivalent Te(1)O6 octahedra, and  a faceface with one Na(1)O6 octahedra. The corner-sharing octahedral tilt angles range from 37-58°. Te(1) is bonded to three equivalent O(1) and three equivalent O(2) atoms to form TeO6 octahedra that share corners with three equivalent Na(2)O6 octahedra, corners with six equivalent Na(1)O6 octahedra, edges with three equivalent Ge(1)O6 octahedra, and  a faceface with one Na(2)O6 octahedra. The corner-sharing octahedral tilt angles range from 37-59°. There are two inequivalent O sites. In the first O site, O(1) is bonded in a distorted see-saw-like geometry to one Na(1), one Na(2), one Ge(1), and one Te(1) atom. In the second O site, O(2) is bonded in a 4-coordinate geometry to one Na(1), one Na(2), one Ge(1), and one Te(1) atom. is represented by the Crystallographic Information File (CIF) [CIF]
data_Na2GeTeO6
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   6.171
_cell_length_b   6.171
_cell_length_c   6.171
_cell_angle_alpha   49.659
_cell_angle_beta   49.659
_cell_angle_gamma   49.659
_symmetry_Int_Tables_number   1
_cell_volume   125.533
_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
  Na  Na0  1  0.859  0.859  0.859  1.0
  Na  Na1  1  0.141  0.141  0.141  1.0
  Ge  Ge2  1  0.662  0.662  0.662  1.0
  Te  Te3  1  0.337  0.337  0.337  1.0
  O  O4  1  0.688  0.059  0.458  1.0
  O  O5  1  0.458  0.688  0.059  1.0
  O  O6  1  0.059  0.458  0.688  1.0
  O  O7  1  0.316  0.935  0.545  1.0
  O  O8  1  0.545  0.316  0.935  1.0
  O  O9  1  0.935  0.545  0.316  1.0
[/CIF]
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