The crystal structure described by K2SiF6 crystallizes in the cubic Fm-3m space group. K(1) is bonded to twelve equivalent F(1) atoms to form KF12 cuboctahedra that share corners with twelve equivalent K(1)F12 cuboctahedra, faces with six equivalent K(1)F12 cuboctahedra, and faces with four equivalent Si(1)F6 octahedra. Si(1) is bonded to six equivalent F(1) atoms to form SiF6 octahedra that share faces with eight equivalent K(1)F12 cuboctahedra. F(1) is bonded in a single-bond geometry to four equivalent K(1) and one Si(1) atom. is represented by the CIF card [CIF]
data_K2SiF6
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   5.644
_cell_length_b   5.644
_cell_length_c   5.644
_cell_angle_alpha   60.000
_cell_angle_beta   60.000
_cell_angle_gamma   60.000
_symmetry_Int_Tables_number   1
_cell_volume   127.129
_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  0.750  0.750  0.750  1.0
  K  K1  1  0.250  0.250  0.250  1.0
  Si  Si2  1  0.000  0.000  0.000  1.0
  F  F3  1  0.213  0.787  0.787  1.0
  F  F4  1  0.213  0.787  0.213  1.0
  F  F5  1  0.787  0.213  0.787  1.0
  F  F6  1  0.787  0.213  0.213  1.0
  F  F7  1  0.787  0.787  0.213  1.0
  F  F8  1  0.213  0.213  0.787  1.0
[/CIF]
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The crystal structure described by K2SiF6 crystallizes in the cubic Fm-3m space group. K(1) is bonded to twelve equivalent F(1) atoms to form KF12 cuboctahedra that share corners with twelve equivalent K(1)F12 cuboctahedra, faces with six equivalent K(1)F12 cuboctahedra, and faces with four equivalent Si(1)F6 octahedra. Si(1) is bonded to six equivalent F(1) atoms to form SiF6 octahedra that share faces with eight equivalent K(1)F12 cuboctahedra. F(1) is bonded in a single-bond geometry to four equivalent K(1) and one Si(1) atom. is represented by the CIF card [CIF]
data_K2SiF6
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   5.644
_cell_length_b   5.644
_cell_length_c   5.644
_cell_angle_alpha   60.000
_cell_angle_beta   60.000
_cell_angle_gamma   60.000
_symmetry_Int_Tables_number   1
_cell_volume   127.129
_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  0.750  0.750  0.750  1.0
  K  K1  1  0.250  0.250  0.250  1.0
  Si  Si2  1  0.000  0.000  0.000  1.0
  F  F3  1  0.213  0.787  0.787  1.0
  F  F4  1  0.213  0.787  0.213  1.0
  F  F5  1  0.787  0.213  0.787  1.0
  F  F6  1  0.787  0.213  0.213  1.0
  F  F7  1  0.787  0.787  0.213  1.0
  F  F8  1  0.213  0.213  0.787  1.0
[/CIF]
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