The compound described by KSiO3 crystallizes in the monoclinic P2_1/c space group. There are two inequivalent K sites. In the first K site, K(1) is bonded in a 6-coordinate geometry to one O(2), one O(3), one O(5), one O(6), and two equivalent O(4) atoms. In the second K site, K(2) is bonded in a 8-coordinate geometry to one O(2), one O(3), one O(5), one O(6), two equivalent O(1), and two equivalent O(4) atoms. There are two inequivalent Si sites. In the first Si site, Si(1) is bonded to one O(1), one O(2), one O(3), and one O(4) atom to form corner-sharing SiO4 tetrahedra. In the second Si site, Si(2) is bonded to one O(2), one O(3), one O(5), and one O(6) atom to form corner-sharing SiO4 tetrahedra. There are six inequivalent O sites. In the first O site, O(5) is bonded in a 3-coordinate geometry to one K(1), one K(2), and one Si(2) atom. In the second O site, O(6) is bonded in a 3-coordinate geometry to one K(1), one K(2), and one Si(2) atom. In the third O site, O(1) is bonded in a 3-coordinate geometry to two equivalent K(2) and one Si(1) atom. In the fourth O site, O(2) is bonded in a 2-coordinate geometry to one K(1), one K(2), one Si(1), and one Si(2) atom. In the fifth O site, O(3) is bonded in a 2-coordinate geometry to one K(1), one K(2), one Si(1), and one Si(2) atom. In the sixth O site, O(4) is bonded in a distorted single-bond geometry to two equivalent K(1), two equivalent K(2), and one Si(1) atom. is represented by the CIF file [CIF]
data_KSiO3
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   11.008
_cell_length_b   7.839
_cell_length_c   10.369
_cell_angle_alpha   48.631
_cell_angle_beta   90.000
_cell_angle_gamma   90.000
_symmetry_Int_Tables_number   1
_cell_volume   671.447
_cell_formula_units_Z   8
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  0.251  0.002  0.985  1.0
  K  K1  1  0.249  0.002  0.485  1.0
  K  K2  1  0.749  0.998  0.015  1.0
  K  K3  1  0.751  0.998  0.515  1.0
  K  K4  1  0.476  0.501  0.821  1.0
  K  K5  1  0.024  0.501  0.321  1.0
  K  K6  1  0.524  0.499  0.179  1.0
  K  K7  1  0.976  0.499  0.679  1.0
  Si  Si8  1  0.313  0.501  0.492  1.0
  Si  Si9  1  0.187  0.501  0.992  1.0
  Si  Si10  1  0.687  0.499  0.508  1.0
  Si  Si11  1  0.813  0.499  0.008  1.0
  Si  Si12  1  0.500  0.894  0.304  1.0
  Si  Si13  1  0.000  0.894  0.804  1.0
  Si  Si14  1  0.500  0.106  0.696  1.0
  Si  Si15  1  1.000  0.106  0.196  1.0
  O  O16  1  0.174  0.494  0.544  1.0
  O  O17  1  0.326  0.494  0.044  1.0
  O  O18  1  0.826  0.506  0.456  1.0
  O  O19  1  0.674  0.506  0.956  1.0
  O  O20  1  0.386  0.727  0.435  1.0
  O  O21  1  0.114  0.727  0.935  1.0
  O  O22  1  0.614  0.273  0.565  1.0
  O  O23  1  0.886  0.273  0.065  1.0
  O  O24  1  0.391  0.281  0.658  1.0
  O  O25  1  0.109  0.281  0.158  1.0
  O  O26  1  0.609  0.719  0.342  1.0
  O  O27  1  0.891  0.719  0.842  1.0
  O  O28  1  0.291  0.499  0.339  1.0
  O  O29  1  0.209  0.499  0.839  1.0
  O  O30  1  0.709  0.501  0.661  1.0
  O  O31  1  0.791  0.501  0.161  1.0
  O  O32  1  0.464  0.062  0.103  1.0
  O  O33  1  0.036  0.062  0.603  1.0
  O  O34  1  0.536  0.938  0.897  1.0
  O  O35  1  0.964  0.938  0.397  1.0
  O  O36  1  0.539  0.060  0.338  1.0
  O  O37  1  0.961  0.060  0.838  1.0
  O  O38  1  0.461  0.940  0.662  1.0
  O  O39  1  0.039  0.940  0.162  1.0
[/CIF]
.
The compound described by KSiO3 crystallizes in the monoclinic P2_1/c space group. There are two inequivalent K sites. In the first K site, K(1) is bonded in a 6-coordinate geometry to one O(2), one O(3), one O(5), one O(6), and two equivalent O(4) atoms. In the second K site, K(2) is bonded in a 8-coordinate geometry to one O(2), one O(3), one O(5), one O(6), two equivalent O(1), and two equivalent O(4) atoms. There are two inequivalent Si sites. In the first Si site, Si(1) is bonded to one O(1), one O(2), one O(3), and one O(4) atom to form corner-sharing SiO4 tetrahedra. In the second Si site, Si(2) is bonded to one O(2), one O(3), one O(5), and one O(6) atom to form corner-sharing SiO4 tetrahedra. There are six inequivalent O sites. In the first O site, O(5) is bonded in a 3-coordinate geometry to one K(1), one K(2), and one Si(2) atom. In the second O site, O(6) is bonded in a 3-coordinate geometry to one K(1), one K(2), and one Si(2) atom. In the third O site, O(1) is bonded in a 3-coordinate geometry to two equivalent K(2) and one Si(1) atom. In the fourth O site, O(2) is bonded in a 2-coordinate geometry to one K(1), one K(2), one Si(1), and one Si(2) atom. In the fifth O site, O(3) is bonded in a 2-coordinate geometry to one K(1), one K(2), one Si(1), and one Si(2) atom. In the sixth O site, O(4) is bonded in a distorted single-bond geometry to two equivalent K(1), two equivalent K(2), and one Si(1) atom. is represented by the CIF file [CIF]
data_KSiO3
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   11.008
_cell_length_b   7.839
_cell_length_c   10.369
_cell_angle_alpha   48.631
_cell_angle_beta   90.000
_cell_angle_gamma   90.000
_symmetry_Int_Tables_number   1
_cell_volume   671.447
_cell_formula_units_Z   8
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  0.251  0.002  0.985  1.0
  K  K1  1  0.249  0.002  0.485  1.0
  K  K2  1  0.749  0.998  0.015  1.0
  K  K3  1  0.751  0.998  0.515  1.0
  K  K4  1  0.476  0.501  0.821  1.0
  K  K5  1  0.024  0.501  0.321  1.0
  K  K6  1  0.524  0.499  0.179  1.0
  K  K7  1  0.976  0.499  0.679  1.0
  Si  Si8  1  0.313  0.501  0.492  1.0
  Si  Si9  1  0.187  0.501  0.992  1.0
  Si  Si10  1  0.687  0.499  0.508  1.0
  Si  Si11  1  0.813  0.499  0.008  1.0
  Si  Si12  1  0.500  0.894  0.304  1.0
  Si  Si13  1  0.000  0.894  0.804  1.0
  Si  Si14  1  0.500  0.106  0.696  1.0
  Si  Si15  1  1.000  0.106  0.196  1.0
  O  O16  1  0.174  0.494  0.544  1.0
  O  O17  1  0.326  0.494  0.044  1.0
  O  O18  1  0.826  0.506  0.456  1.0
  O  O19  1  0.674  0.506  0.956  1.0
  O  O20  1  0.386  0.727  0.435  1.0
  O  O21  1  0.114  0.727  0.935  1.0
  O  O22  1  0.614  0.273  0.565  1.0
  O  O23  1  0.886  0.273  0.065  1.0
  O  O24  1  0.391  0.281  0.658  1.0
  O  O25  1  0.109  0.281  0.158  1.0
  O  O26  1  0.609  0.719  0.342  1.0
  O  O27  1  0.891  0.719  0.842  1.0
  O  O28  1  0.291  0.499  0.339  1.0
  O  O29  1  0.209  0.499  0.839  1.0
  O  O30  1  0.709  0.501  0.661  1.0
  O  O31  1  0.791  0.501  0.161  1.0
  O  O32  1  0.464  0.062  0.103  1.0
  O  O33  1  0.036  0.062  0.603  1.0
  O  O34  1  0.536  0.938  0.897  1.0
  O  O35  1  0.964  0.938  0.397  1.0
  O  O36  1  0.539  0.060  0.338  1.0
  O  O37  1  0.961  0.060  0.838  1.0
  O  O38  1  0.461  0.940  0.662  1.0
  O  O39  1  0.039  0.940  0.162  1.0
[/CIF]
.