The material described by NaEuO2 crystallizes in the tetragonal I4_1/amd space group. Na(1) is bonded to six O(1,1,1) atoms to form distorted NaO6 octahedra that share corners with two equivalent Eu(1)O6 octahedra, corners with four equivalent Na(1)O6 octahedra, edges with four equivalent Na(1)O6 octahedra, and edges with eight equivalent Eu(1)O6 octahedra. The corner-sharing octahedral tilt angles range from 0-14°. Eu(1) is bonded to six equivalent O(1) atoms to form EuO6 octahedra that share corners with two equivalent Na(1)O6 octahedra, corners with four equivalent Eu(1)O6 octahedra, edges with four equivalent Eu(1)O6 octahedra, and edges with eight equivalent Na(1)O6 octahedra. The corner-sharing octahedral tilt angles range from 0-14°. There are three inequivalent O sites. In the first O site, O(1) is bonded to three equivalent Na(1) and three equivalent Eu(1) atoms to form a mixture of distorted edge and corner-sharing ONa3Eu3 octahedra. The corner-sharing octahedral tilt angles range from 0-14°. In the second O site, O(1) is bonded to three equivalent Na(1) and three equivalent Eu(1) atoms to form a mixture of distorted edge and corner-sharing ONa3Eu3 octahedra. The corner-sharing octahedral tilt angles range from 0-14°. In the third O site, O(1) is bonded to three equivalent Na(1) and three equivalent Eu(1) atoms to form a mixture of distorted edge and corner-sharing ONa3Eu3 octahedra. The corner-sharing octahedral tilt angles range from 0-14°. is represented by the CIF file [CIF]
data_NaEuO2
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   6.168
_cell_length_b   6.168
_cell_length_c   6.168
_cell_angle_alpha   134.945
_cell_angle_beta   134.945
_cell_angle_gamma   65.616
_symmetry_Int_Tables_number   1
_cell_volume   115.776
_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  0.500  0.000  1.0
  Na  Na1  1  0.250  0.750  0.500  1.0
  Eu  Eu2  1  0.750  0.250  0.500  1.0
  Eu  Eu3  1  0.000  0.000  0.000  1.0
  O  O4  1  0.528  0.028  0.500  1.0
  O  O5  1  0.222  0.222  0.000  1.0
  O  O6  1  0.778  0.778  0.000  1.0
  O  O7  1  0.972  0.472  0.500  1.0
[/CIF]
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The material described by NaEuO2 crystallizes in the tetragonal I4_1/amd space group. Na(1) is bonded to six O(1,1,1) atoms to form distorted NaO6 octahedra that share corners with two equivalent Eu(1)O6 octahedra, corners with four equivalent Na(1)O6 octahedra, edges with four equivalent Na(1)O6 octahedra, and edges with eight equivalent Eu(1)O6 octahedra. The corner-sharing octahedral tilt angles range from 0-14°. Eu(1) is bonded to six equivalent O(1) atoms to form EuO6 octahedra that share corners with two equivalent Na(1)O6 octahedra, corners with four equivalent Eu(1)O6 octahedra, edges with four equivalent Eu(1)O6 octahedra, and edges with eight equivalent Na(1)O6 octahedra. The corner-sharing octahedral tilt angles range from 0-14°. There are three inequivalent O sites. In the first O site, O(1) is bonded to three equivalent Na(1) and three equivalent Eu(1) atoms to form a mixture of distorted edge and corner-sharing ONa3Eu3 octahedra. The corner-sharing octahedral tilt angles range from 0-14°. In the second O site, O(1) is bonded to three equivalent Na(1) and three equivalent Eu(1) atoms to form a mixture of distorted edge and corner-sharing ONa3Eu3 octahedra. The corner-sharing octahedral tilt angles range from 0-14°. In the third O site, O(1) is bonded to three equivalent Na(1) and three equivalent Eu(1) atoms to form a mixture of distorted edge and corner-sharing ONa3Eu3 octahedra. The corner-sharing octahedral tilt angles range from 0-14°. is represented by the CIF file [CIF]
data_NaEuO2
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   6.168
_cell_length_b   6.168
_cell_length_c   6.168
_cell_angle_alpha   134.945
_cell_angle_beta   134.945
_cell_angle_gamma   65.616
_symmetry_Int_Tables_number   1
_cell_volume   115.776
_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  0.500  0.000  1.0
  Na  Na1  1  0.250  0.750  0.500  1.0
  Eu  Eu2  1  0.750  0.250  0.500  1.0
  Eu  Eu3  1  0.000  0.000  0.000  1.0
  O  O4  1  0.528  0.028  0.500  1.0
  O  O5  1  0.222  0.222  0.000  1.0
  O  O6  1  0.778  0.778  0.000  1.0
  O  O7  1  0.972  0.472  0.500  1.0
[/CIF]
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