The material described by K4NaCl5 is Caswellsilverite-like structured and crystallizes in the tetragonal I4/m space group. K(1) is bonded to one Cl(2) and five equivalent Cl(1) atoms to form KCl6 octahedra that share  a cornercorner with one Na(1)Cl6 octahedra, corners with five equivalent K(1)Cl6 octahedra, edges with three equivalent Na(1)Cl6 octahedra, and edges with nine equivalent K(1)Cl6 octahedra. The corner-sharing octahedral tilt angles range from 0-7°. Na(1) is bonded to two equivalent Cl(2) and four equivalent Cl(1) atoms to form NaCl6 octahedra that share corners with two equivalent Na(1)Cl6 octahedra, corners with four equivalent K(1)Cl6 octahedra, and edges with twelve equivalent K(1)Cl6 octahedra. The corner-sharing octahedral tilt angles range from 0-1°. There are two inequivalent Cl sites. In the first Cl site, Cl(1) is bonded to five equivalent K(1) and one Na(1) atom to form ClK5Na octahedra that share  a cornercorner with one Cl(2)K4Na2 octahedra, corners with five equivalent Cl(1)K5Na octahedra, edges with three equivalent Cl(2)K4Na2 octahedra, and edges with nine equivalent Cl(1)K5Na octahedra. The corner-sharing octahedral tilt angles range from 0-6°. In the second Cl site, Cl(2) is bonded to four equivalent K(1) and two equivalent Na(1) atoms to form ClK4Na2 octahedra that share corners with two equivalent Cl(2)K4Na2 octahedra, corners with four equivalent Cl(1)K5Na octahedra, and edges with twelve equivalent Cl(1)K5Na octahedra. The corner-sharing octahedral tilt angles range from 0-4°. is represented by the CIF card [CIF]
data_K4NaCl5
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   7.557
_cell_length_b   7.557
_cell_length_c   7.557
_cell_angle_alpha   99.724
_cell_angle_beta   99.723
_cell_angle_gamma   131.470
_symmetry_Int_Tables_number   1
_cell_volume   294.772
_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  0.597  0.201  0.798  1.0
  K  K1  1  0.201  0.403  0.604  1.0
  K  K2  1  0.799  0.597  0.396  1.0
  K  K3  1  0.403  0.799  0.202  1.0
  Na  Na4  1  0.000  0.000  1.000  1.0
  Cl  Cl5  1  0.716  0.907  0.623  1.0
  Cl  Cl6  1  0.284  0.093  0.377  1.0
  Cl  Cl7  1  0.907  0.284  0.191  1.0
  Cl  Cl8  1  0.500  0.500  1.000  1.0
  Cl  Cl9  1  0.093  0.716  0.809  1.0
[/CIF]
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The material described by K4NaCl5 is Caswellsilverite-like structured and crystallizes in the tetragonal I4/m space group. K(1) is bonded to one Cl(2) and five equivalent Cl(1) atoms to form KCl6 octahedra that share  a cornercorner with one Na(1)Cl6 octahedra, corners with five equivalent K(1)Cl6 octahedra, edges with three equivalent Na(1)Cl6 octahedra, and edges with nine equivalent K(1)Cl6 octahedra. The corner-sharing octahedral tilt angles range from 0-7°. Na(1) is bonded to two equivalent Cl(2) and four equivalent Cl(1) atoms to form NaCl6 octahedra that share corners with two equivalent Na(1)Cl6 octahedra, corners with four equivalent K(1)Cl6 octahedra, and edges with twelve equivalent K(1)Cl6 octahedra. The corner-sharing octahedral tilt angles range from 0-1°. There are two inequivalent Cl sites. In the first Cl site, Cl(1) is bonded to five equivalent K(1) and one Na(1) atom to form ClK5Na octahedra that share  a cornercorner with one Cl(2)K4Na2 octahedra, corners with five equivalent Cl(1)K5Na octahedra, edges with three equivalent Cl(2)K4Na2 octahedra, and edges with nine equivalent Cl(1)K5Na octahedra. The corner-sharing octahedral tilt angles range from 0-6°. In the second Cl site, Cl(2) is bonded to four equivalent K(1) and two equivalent Na(1) atoms to form ClK4Na2 octahedra that share corners with two equivalent Cl(2)K4Na2 octahedra, corners with four equivalent Cl(1)K5Na octahedra, and edges with twelve equivalent Cl(1)K5Na octahedra. The corner-sharing octahedral tilt angles range from 0-4°. is represented by the CIF card [CIF]
data_K4NaCl5
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   7.557
_cell_length_b   7.557
_cell_length_c   7.557
_cell_angle_alpha   99.724
_cell_angle_beta   99.723
_cell_angle_gamma   131.470
_symmetry_Int_Tables_number   1
_cell_volume   294.772
_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  0.597  0.201  0.798  1.0
  K  K1  1  0.201  0.403  0.604  1.0
  K  K2  1  0.799  0.597  0.396  1.0
  K  K3  1  0.403  0.799  0.202  1.0
  Na  Na4  1  0.000  0.000  1.000  1.0
  Cl  Cl5  1  0.716  0.907  0.623  1.0
  Cl  Cl6  1  0.284  0.093  0.377  1.0
  Cl  Cl7  1  0.907  0.284  0.191  1.0
  Cl  Cl8  1  0.500  0.500  1.000  1.0
  Cl  Cl9  1  0.093  0.716  0.809  1.0
[/CIF]
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