The structure described by NaSmO2 crystallizes in the tetragonal I4_1/amd space group. Na(1) is bonded in a distorted square co-planar geometry to four equivalent O(1) atoms. Sm(1) is bonded to six equivalent O(1) atoms to form a mixture of corner and edge-sharing SmO6 octahedra. The corner-sharing octahedral tilt angles are 15°. O(1) is bonded to two equivalent Na(1) and three equivalent Sm(1) atoms to form a mixture of distorted corner and edge-sharing ONa2Sm3 square pyramids. is represented by the CIF file [CIF]
data_NaSmO2
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   4.686
_cell_length_b   4.686
_cell_length_c   6.289
_cell_angle_alpha   68.098
_cell_angle_beta   68.098
_cell_angle_gamma   89.987
_symmetry_Int_Tables_number   1
_cell_volume   117.305
_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
  Sm  Sm2  1  1.000  0.000  0.000  1.0
  Sm  Sm3  1  0.750  0.250  0.500  1.0
  O  O4  1  0.221  0.221  0.558  1.0
  O  O5  1  0.529  0.029  0.942  1.0
  O  O6  1  0.971  0.471  0.058  1.0
  O  O7  1  0.779  0.779  0.442  1.0
[/CIF]
.
The structure described by NaSmO2 crystallizes in the tetragonal I4_1/amd space group. Na(1) is bonded in a distorted square co-planar geometry to four equivalent O(1) atoms. Sm(1) is bonded to six equivalent O(1) atoms to form a mixture of corner and edge-sharing SmO6 octahedra. The corner-sharing octahedral tilt angles are 15°. O(1) is bonded to two equivalent Na(1) and three equivalent Sm(1) atoms to form a mixture of distorted corner and edge-sharing ONa2Sm3 square pyramids. is represented by the CIF file [CIF]
data_NaSmO2
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   4.686
_cell_length_b   4.686
_cell_length_c   6.289
_cell_angle_alpha   68.098
_cell_angle_beta   68.098
_cell_angle_gamma   89.987
_symmetry_Int_Tables_number   1
_cell_volume   117.305
_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
  Sm  Sm2  1  1.000  0.000  0.000  1.0
  Sm  Sm3  1  0.750  0.250  0.500  1.0
  O  O4  1  0.221  0.221  0.558  1.0
  O  O5  1  0.529  0.029  0.942  1.0
  O  O6  1  0.971  0.471  0.058  1.0
  O  O7  1  0.779  0.779  0.442  1.0
[/CIF]
.