The material described by Na2TeO5 crystallizes in the orthorhombic Cmcm space group. There are two inequivalent Na sites. In the first Na site, Na(1) is bonded in a 6-coordinate geometry to two equivalent O(1) and four equivalent O(2) atoms. In the second Na site, Na(2) is bonded in a 5-coordinate geometry to one O(1) and four equivalent O(2) atoms. Te(1) is bonded in a 4-coordinate geometry to four equivalent O(2) atoms. There are two inequivalent O sites. In the first O site, O(1) is bonded in a 3-coordinate geometry to one Na(2) and two equivalent Na(1) atoms. In the second O site, O(2) is bonded in a distorted T-shaped geometry to one Na(1), one Na(2), and one Te(1) atom. is represented by the Crystallographic Information File (CIF) [CIF]
data_Na2TeO5
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   5.880
_cell_length_b   6.707
_cell_length_c   7.649
_cell_angle_alpha   63.997
_cell_angle_beta   90.000
_cell_angle_gamma   90.000
_symmetry_Int_Tables_number   1
_cell_volume   271.146
_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  0.500  0.000  0.000  1.0
  Na  Na1  1  0.000  0.000  0.000  1.0
  Na  Na2  1  0.750  0.329  0.343  1.0
  Na  Na3  1  0.250  0.671  0.657  1.0
  Te  Te4  1  0.750  0.790  0.420  1.0
  Te  Te5  1  0.250  0.210  0.580  1.0
  O  O6  1  0.250  0.855  0.289  1.0
  O  O7  1  0.750  0.145  0.711  1.0
  O  O8  1  0.942  0.663  0.282  1.0
  O  O9  1  0.058  0.944  0.718  1.0
  O  O10  1  0.558  0.663  0.282  1.0
  O  O11  1  0.442  0.944  0.718  1.0
  O  O12  1  0.058  0.337  0.718  1.0
  O  O13  1  0.942  0.056  0.282  1.0
  O  O14  1  0.442  0.337  0.718  1.0
  O  O15  1  0.558  0.056  0.282  1.0
[/CIF]
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The material described by Na2TeO5 crystallizes in the orthorhombic Cmcm space group. There are two inequivalent Na sites. In the first Na site, Na(1) is bonded in a 6-coordinate geometry to two equivalent O(1) and four equivalent O(2) atoms. In the second Na site, Na(2) is bonded in a 5-coordinate geometry to one O(1) and four equivalent O(2) atoms. Te(1) is bonded in a 4-coordinate geometry to four equivalent O(2) atoms. There are two inequivalent O sites. In the first O site, O(1) is bonded in a 3-coordinate geometry to one Na(2) and two equivalent Na(1) atoms. In the second O site, O(2) is bonded in a distorted T-shaped geometry to one Na(1), one Na(2), and one Te(1) atom. is represented by the Crystallographic Information File (CIF) [CIF]
data_Na2TeO5
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   5.880
_cell_length_b   6.707
_cell_length_c   7.649
_cell_angle_alpha   63.997
_cell_angle_beta   90.000
_cell_angle_gamma   90.000
_symmetry_Int_Tables_number   1
_cell_volume   271.146
_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  0.500  0.000  0.000  1.0
  Na  Na1  1  0.000  0.000  0.000  1.0
  Na  Na2  1  0.750  0.329  0.343  1.0
  Na  Na3  1  0.250  0.671  0.657  1.0
  Te  Te4  1  0.750  0.790  0.420  1.0
  Te  Te5  1  0.250  0.210  0.580  1.0
  O  O6  1  0.250  0.855  0.289  1.0
  O  O7  1  0.750  0.145  0.711  1.0
  O  O8  1  0.942  0.663  0.282  1.0
  O  O9  1  0.058  0.944  0.718  1.0
  O  O10  1  0.558  0.663  0.282  1.0
  O  O11  1  0.442  0.944  0.718  1.0
  O  O12  1  0.058  0.337  0.718  1.0
  O  O13  1  0.942  0.056  0.282  1.0
  O  O14  1  0.442  0.337  0.718  1.0
  O  O15  1  0.558  0.056  0.282  1.0
[/CIF]
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