The structure described by KO3 is Baddeleyite-like structured and crystallizes in the orthorhombic Imm2 space group. K(1) is bonded to one O(2) and six equivalent O(1) atoms to form distorted KO7 pentagonal bipyramids that share corners with eight equivalent K(1)O7 pentagonal bipyramids, corners with two equivalent O(1)K3O tetrahedra, and edges with two equivalent K(1)O7 pentagonal bipyramids. There are two inequivalent O sites. In the first O site, O(1) is bonded to three equivalent K(1) and one O(2) atom to form OK3O tetrahedra that share  a cornercorner with one K(1)O7 pentagonal bipyramid, corners with twelve equivalent O(1)K3O tetrahedra, and edges with two equivalent O(1)K3O tetrahedra. In the second O site, O(2) is bonded in a trigonal planar geometry to one K(1) and two equivalent O(1) atoms. is represented by the Crystallographic Information File (CIF) [CIF]
data_KO3
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   4.819
_cell_length_b   4.819
_cell_length_c   4.819
_cell_angle_alpha   129.013
_cell_angle_beta   104.740
_cell_angle_gamma   96.665
_symmetry_Int_Tables_number   1
_cell_volume   78.214
_cell_formula_units_Z   1
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  0.489  0.489  0.000  1.0
  O  O1  1  0.889  0.084  0.805  1.0
  O  O2  1  0.968  0.968  0.000  1.0
  O  O3  1  0.279  0.084  0.195  1.0
[/CIF]
.
The structure described by KO3 is Baddeleyite-like structured and crystallizes in the orthorhombic Imm2 space group. K(1) is bonded to one O(2) and six equivalent O(1) atoms to form distorted KO7 pentagonal bipyramids that share corners with eight equivalent K(1)O7 pentagonal bipyramids, corners with two equivalent O(1)K3O tetrahedra, and edges with two equivalent K(1)O7 pentagonal bipyramids. There are two inequivalent O sites. In the first O site, O(1) is bonded to three equivalent K(1) and one O(2) atom to form OK3O tetrahedra that share  a cornercorner with one K(1)O7 pentagonal bipyramid, corners with twelve equivalent O(1)K3O tetrahedra, and edges with two equivalent O(1)K3O tetrahedra. In the second O site, O(2) is bonded in a trigonal planar geometry to one K(1) and two equivalent O(1) atoms. is represented by the Crystallographic Information File (CIF) [CIF]
data_KO3
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   4.819
_cell_length_b   4.819
_cell_length_c   4.819
_cell_angle_alpha   129.013
_cell_angle_beta   104.740
_cell_angle_gamma   96.665
_symmetry_Int_Tables_number   1
_cell_volume   78.214
_cell_formula_units_Z   1
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  0.489  0.489  0.000  1.0
  O  O1  1  0.889  0.084  0.805  1.0
  O  O2  1  0.968  0.968  0.000  1.0
  O  O3  1  0.279  0.084  0.195  1.0
[/CIF]
.