The crystal structure described by Na2GeTeO6 is Ilmenite-derived structured and crystallizes in the trigonal P-31c space group. Na(1) is bonded to six equivalent O(1) 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(1)O6 octahedra, and  a faceface with one Ge(1)O6 octahedra. The corner-sharing octahedral tilt angles range from 36-58°. Ge(1) is bonded to six equivalent O(1) atoms to form GeO6 octahedra that share corners with six equivalent Na(1)O6 octahedra, edges with three equivalent Te(1)O6 octahedra, and faces with two equivalent Na(1)O6 octahedra. The corner-sharing octahedral tilt angles are 56°. Te(1) is bonded to six equivalent O(1) atoms to form TeO6 octahedra that share corners with twelve equivalent Na(1)O6 octahedra and edges with three equivalent Ge(1)O6 octahedra. The corner-sharing octahedral tilt angles range from 36-58°. O(1) is bonded in a 4-coordinate geometry to two equivalent Na(1), one Ge(1), and one Te(1) atom. is represented by the CIF file [CIF]
data_Na2GeTeO6
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   5.184
_cell_length_b   5.184
_cell_length_c   10.822
_cell_angle_alpha   90.000
_cell_angle_beta   90.000
_cell_angle_gamma   120.000
_symmetry_Int_Tables_number   1
_cell_volume   251.880
_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  0.667  0.333  0.960  1.0
  Na  Na1  1  0.667  0.333  0.540  1.0
  Na  Na2  1  0.333  0.667  0.460  1.0
  Na  Na3  1  0.333  0.667  0.040  1.0
  Ge  Ge4  1  0.333  0.667  0.750  1.0
  Ge  Ge5  1  0.667  0.333  0.250  1.0
  Te  Te6  1  0.000  0.000  0.250  1.0
  Te  Te7  1  0.000  0.000  0.750  1.0
  O  O8  1  0.945  0.661  0.148  1.0
  O  O9  1  0.339  0.284  0.148  1.0
  O  O10  1  0.716  0.055  0.148  1.0
  O  O11  1  0.339  0.055  0.352  1.0
  O  O12  1  0.716  0.661  0.352  1.0
  O  O13  1  0.945  0.284  0.352  1.0
  O  O14  1  0.055  0.339  0.852  1.0
  O  O15  1  0.661  0.716  0.852  1.0
  O  O16  1  0.055  0.716  0.648  1.0
  O  O17  1  0.284  0.339  0.648  1.0
  O  O18  1  0.661  0.945  0.648  1.0
  O  O19  1  0.284  0.945  0.852  1.0
[/CIF]
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The crystal structure described by Na2GeTeO6 is Ilmenite-derived structured and crystallizes in the trigonal P-31c space group. Na(1) is bonded to six equivalent O(1) 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(1)O6 octahedra, and  a faceface with one Ge(1)O6 octahedra. The corner-sharing octahedral tilt angles range from 36-58°. Ge(1) is bonded to six equivalent O(1) atoms to form GeO6 octahedra that share corners with six equivalent Na(1)O6 octahedra, edges with three equivalent Te(1)O6 octahedra, and faces with two equivalent Na(1)O6 octahedra. The corner-sharing octahedral tilt angles are 56°. Te(1) is bonded to six equivalent O(1) atoms to form TeO6 octahedra that share corners with twelve equivalent Na(1)O6 octahedra and edges with three equivalent Ge(1)O6 octahedra. The corner-sharing octahedral tilt angles range from 36-58°. O(1) is bonded in a 4-coordinate geometry to two equivalent Na(1), one Ge(1), and one Te(1) atom. is represented by the CIF file [CIF]
data_Na2GeTeO6
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   5.184
_cell_length_b   5.184
_cell_length_c   10.822
_cell_angle_alpha   90.000
_cell_angle_beta   90.000
_cell_angle_gamma   120.000
_symmetry_Int_Tables_number   1
_cell_volume   251.880
_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  0.667  0.333  0.960  1.0
  Na  Na1  1  0.667  0.333  0.540  1.0
  Na  Na2  1  0.333  0.667  0.460  1.0
  Na  Na3  1  0.333  0.667  0.040  1.0
  Ge  Ge4  1  0.333  0.667  0.750  1.0
  Ge  Ge5  1  0.667  0.333  0.250  1.0
  Te  Te6  1  0.000  0.000  0.250  1.0
  Te  Te7  1  0.000  0.000  0.750  1.0
  O  O8  1  0.945  0.661  0.148  1.0
  O  O9  1  0.339  0.284  0.148  1.0
  O  O10  1  0.716  0.055  0.148  1.0
  O  O11  1  0.339  0.055  0.352  1.0
  O  O12  1  0.716  0.661  0.352  1.0
  O  O13  1  0.945  0.284  0.352  1.0
  O  O14  1  0.055  0.339  0.852  1.0
  O  O15  1  0.661  0.716  0.852  1.0
  O  O16  1  0.055  0.716  0.648  1.0
  O  O17  1  0.284  0.339  0.648  1.0
  O  O18  1  0.661  0.945  0.648  1.0
  O  O19  1  0.284  0.945  0.852  1.0
[/CIF]
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