data_KSb3
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   4.89
_cell_length_b   4.89
_cell_length_c   4.89
_cell_angle_alpha   90.0
_cell_angle_beta   90.0
_cell_angle_gamma   90.0
_symmetry_Int_Tables_number   1
_chemical_formula_structural   KSb3
_chemical_formula_sum   'K1 Sb3'
_cell_volume   116.74
_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  0.0  0.0  0.0  1.0
  Sb  Sb1  1  0.0  0.44  0.44  1.0
  Sb  Sb2  1  0.44  0.0  0.44  1.0
  Sb  Sb3  1  0.44  0.44  0.0  1.0

data_KSb3
_symmetry_space_group_name_H-M   R3m
_cell_length_a   6.91
_cell_length_b   6.91
_cell_length_c   8.47
_cell_angle_alpha   90.0
_cell_angle_beta   90.0
_cell_angle_gamma   120.0
_symmetry_Int_Tables_number   160
_chemical_formula_structural   KSb3
_chemical_formula_sum   'K3 Sb9'
_cell_volume   350.21
_cell_formula_units_Z   3
loop_
 _symmetry_equiv_pos_site_id
 _symmetry_equiv_pos_as_xyz
  1  'x, y, z'
  2  '-y, x-y, z'
  3  '-x+y, -x, z'
  4  '-y, -x, z'
  5  '-x+y, y, z'
  6  'x, x-y, z'
  7  'x+1/3, y+2/3, z+2/3'
  8  '-y+1/3, x-y+2/3, z+2/3'
  9  '-x+y+1/3, -x+2/3, z+2/3'
  10  '-y+1/3, -x+2/3, z+2/3'
  11  '-x+y+1/3, y+2/3, z+2/3'
  12  'x+1/3, x-y+2/3, z+2/3'
  13  'x+2/3, y+1/3, z+1/3'
  14  '-y+2/3, x-y+1/3, z+1/3'
  15  '-x+y+2/3, -x+1/3, z+1/3'
  16  '-y+2/3, -x+1/3, z+1/3'
  17  '-x+y+2/3, y+1/3, z+1/3'
  18  'x+2/3, x-y+1/3, z+1/3'
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  3  0.0  0.0  0.0  1.0
  Sb  Sb1  9  0.04  0.52  0.96  1.0

K Sb Sb Sb
K Sb Sb Sb 0 3 - - o 0 3 - o o 0 3 o - o 0 3 o o o 0 2 - o - 0 2 - o o 0 2 o o - 0 2 o o o 0 1 o - - 0 1 o - o 0 1 o o - 0 1 o o o 1 2 - o o 1 2 - + o 1 2 o o o 1 2 o + o 1 3 - o o 1 3 - o + 1 3 o o o 1 3 o o + 2 3 o - o 2 3 o - + 2 3 o o o 2 3 o o + 
KSb3 is Uranium Silicide structured and crystallizes in the trigonal R3m space group. K(1) is bonded to twelve equivalent Sb(1) atoms to form a mixture of distorted corner and face-sharing KSb12 cuboctahedra. There are a spread of K(1)-Sb(1) bond distances ranging from 3.07-3.85 Å. Sb(1) is bonded in a 6-coordinate geometry to four equivalent K(1) and two equivalent Sb(1) atoms. Both Sb(1)-Sb(1) bond lengths are 3.07 Å.