The compound described by K2AlF5 crystallizes in the tetragonal P4/mmm space group. K(1) is bonded in a 10-coordinate geometry to two equivalent F(2) and eight equivalent F(1) atoms. Al(1) is bonded to two equivalent F(2) and four equivalent F(1) atoms to form corner-sharing AlF6 octahedra. The corner-sharing octahedra are not tilted. There are two inequivalent F sites. In the first F site, F(1) is bonded in a distorted single-bond geometry to four equivalent K(1) and one Al(1) atom. In the second F site, F(2) is bonded in a linear geometry to four equivalent K(1) and two equivalent Al(1) atoms. is represented by the CIF card [CIF]
data_K2AlF5
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   3.683
_cell_length_b   5.891
_cell_length_c   5.891
_cell_angle_alpha   90.000
_cell_angle_beta   90.000
_cell_angle_gamma   90.000
_symmetry_Int_Tables_number   1
_cell_volume   127.819
_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  0.500  0.500  0.000  1.0
  K  K1  1  0.500  0.000  0.500  1.0
  Al  Al2  1  0.000  0.000  0.000  1.0
  F  F3  1  0.000  0.785  0.785  1.0
  F  F4  1  0.000  0.215  0.785  1.0
  F  F5  1  0.000  0.785  0.215  1.0
  F  F6  1  0.500  0.000  0.000  1.0
  F  F7  1  0.000  0.215  0.215  1.0
[/CIF]
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The compound described by K2AlF5 crystallizes in the tetragonal P4/mmm space group. K(1) is bonded in a 10-coordinate geometry to two equivalent F(2) and eight equivalent F(1) atoms. Al(1) is bonded to two equivalent F(2) and four equivalent F(1) atoms to form corner-sharing AlF6 octahedra. The corner-sharing octahedra are not tilted. There are two inequivalent F sites. In the first F site, F(1) is bonded in a distorted single-bond geometry to four equivalent K(1) and one Al(1) atom. In the second F site, F(2) is bonded in a linear geometry to four equivalent K(1) and two equivalent Al(1) atoms. is represented by the CIF card [CIF]
data_K2AlF5
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   3.683
_cell_length_b   5.891
_cell_length_c   5.891
_cell_angle_alpha   90.000
_cell_angle_beta   90.000
_cell_angle_gamma   90.000
_symmetry_Int_Tables_number   1
_cell_volume   127.819
_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  0.500  0.500  0.000  1.0
  K  K1  1  0.500  0.000  0.500  1.0
  Al  Al2  1  0.000  0.000  0.000  1.0
  F  F3  1  0.000  0.785  0.785  1.0
  F  F4  1  0.000  0.215  0.785  1.0
  F  F5  1  0.000  0.785  0.215  1.0
  F  F6  1  0.500  0.000  0.000  1.0
  F  F7  1  0.000  0.215  0.215  1.0
[/CIF]
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