The crystal structure described by K2Sn2O3 crystallizes in the cubic I2_13 space group. K(1) is bonded in a 6-coordinate geometry to six equivalent O(1) atoms. Sn(1) is bonded in a 3-coordinate geometry to three equivalent O(1) atoms. O(1) is bonded to four equivalent K(1) and two equivalent Sn(1) atoms to form a mixture of distorted edge, face, and corner-sharing OK4Sn2 octahedra. The corner-sharing octahedral tilt angles range from 54-61°. is represented by the Crystallographic Information File (CIF) [CIF]
data_K2Sn2O3
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   7.237
_cell_length_b   7.237
_cell_length_c   7.237
_cell_angle_alpha   109.471
_cell_angle_beta   109.471
_cell_angle_gamma   109.471
_symmetry_Int_Tables_number   1
_cell_volume   291.811
_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
  K  K0  1  0.481  0.500  0.000  1.0
  K  K1  1  0.019  0.019  0.019  1.0
  K  K2  1  0.000  0.481  0.500  1.0
  K  K3  1  0.500  0.000  0.481  1.0
  Sn  Sn4  1  0.500  0.000  0.009  1.0
  Sn  Sn5  1  0.000  0.009  0.500  1.0
  Sn  Sn6  1  0.491  0.491  0.491  1.0
  Sn  Sn7  1  0.009  0.500  0.000  1.0
  O  O8  1  0.750  0.982  0.232  1.0
  O  O9  1  0.250  0.518  0.268  1.0
  O  O10  1  0.982  0.232  0.750  1.0
  O  O11  1  0.232  0.750  0.982  1.0
  O  O12  1  0.268  0.250  0.518  1.0
  O  O13  1  0.518  0.268  0.250  1.0
[/CIF]
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The crystal structure described by K2Sn2O3 crystallizes in the cubic I2_13 space group. K(1) is bonded in a 6-coordinate geometry to six equivalent O(1) atoms. Sn(1) is bonded in a 3-coordinate geometry to three equivalent O(1) atoms. O(1) is bonded to four equivalent K(1) and two equivalent Sn(1) atoms to form a mixture of distorted edge, face, and corner-sharing OK4Sn2 octahedra. The corner-sharing octahedral tilt angles range from 54-61°. is represented by the Crystallographic Information File (CIF) [CIF]
data_K2Sn2O3
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   7.237
_cell_length_b   7.237
_cell_length_c   7.237
_cell_angle_alpha   109.471
_cell_angle_beta   109.471
_cell_angle_gamma   109.471
_symmetry_Int_Tables_number   1
_cell_volume   291.811
_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
  K  K0  1  0.481  0.500  0.000  1.0
  K  K1  1  0.019  0.019  0.019  1.0
  K  K2  1  0.000  0.481  0.500  1.0
  K  K3  1  0.500  0.000  0.481  1.0
  Sn  Sn4  1  0.500  0.000  0.009  1.0
  Sn  Sn5  1  0.000  0.009  0.500  1.0
  Sn  Sn6  1  0.491  0.491  0.491  1.0
  Sn  Sn7  1  0.009  0.500  0.000  1.0
  O  O8  1  0.750  0.982  0.232  1.0
  O  O9  1  0.250  0.518  0.268  1.0
  O  O10  1  0.982  0.232  0.750  1.0
  O  O11  1  0.232  0.750  0.982  1.0
  O  O12  1  0.268  0.250  0.518  1.0
  O  O13  1  0.518  0.268  0.250  1.0
[/CIF]
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