data_KNaSb2
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   6.05
_cell_length_b   6.05
_cell_length_c   6.05
_cell_angle_alpha   130.77
_cell_angle_beta   130.77
_cell_angle_gamma   72.18
_symmetry_Int_Tables_number   1
_chemical_formula_structural   KNaSb2
_chemical_formula_sum   'K1 Na1 Sb2'
_cell_volume   124.2
_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  0.52  0.44  1.0
  Na  Na1  1  0.0  0.0  0.0  1.0
  Sb  Sb2  1  0.52  0.0  0.44  1.0
  Sb  Sb3  1  0.0  0.0  0.89  1.0

data_KNaSb2
_symmetry_space_group_name_H-M   P1
_cell_length_a   5.04
_cell_length_b   5.04
_cell_length_c   6.05
_cell_angle_alpha   114.62
_cell_angle_beta   114.62
_cell_angle_gamma   90.0
_symmetry_Int_Tables_number   1
_chemical_formula_structural   KNaSb2
_chemical_formula_sum   'K1 Na1 Sb2'
_cell_volume   124.2
_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  0.92  0.44  0.92  1.0
  Na  Na1  1  0.0  0.0  0.0  1.0
  Sb  Sb2  1  0.44  0.92  0.92  1.0
  Sb  Sb3  1  0.89  0.89  0.89  1.0

K Na Sb Sb
KNaSb2 is Indium-like structured and crystallizes in the triclinic P1 space group. The structure is zero-dimensional and consists of one KNaSb2 cluster. K(1) is bonded in a distorted single-bond geometry to one Sb(2) atom. The K(1)-Sb(2) bond length is 2.34 Å. Na(1) is bonded in a single-bond geometry to one Sb(1) and one Sb(2) atom. The Na(1)-Sb(1) bond length is 2.47 Å. The Na(1)-Sb(2) bond length is 0.67 Å. There are two inequivalent Sb sites. In the first Sb site, Sb(1) is bonded in a distorted single-bond geometry to one Na(1) atom. In the second Sb site, Sb(2) is bonded in a single-bond geometry to one K(1) and one Na(1) atom.