data_K2NaOs
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   6.11
_cell_length_b   6.11
_cell_length_c   6.11
_cell_angle_alpha   130.16
_cell_angle_beta   130.16
_cell_angle_gamma   73.16
_symmetry_Int_Tables_number   1
_chemical_formula_structural   K2NaOs
_chemical_formula_sum   'K2 Na1 Os1'
_cell_volume   130.11
_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  0.57  0.45  1.0
  K  K1  1  0.57  0.0  0.45  1.0
  Na  Na2  1  0.0  0.0  0.0  1.0
  Os  Os3  1  0.0  0.0  0.91  1.0

data_K2NaOs
_symmetry_space_group_name_H-M   Cm
_cell_length_a   7.28
_cell_length_b   7.28
_cell_length_c   6.11
_cell_angle_alpha   90.0
_cell_angle_beta   126.58
_cell_angle_gamma   90.0
_symmetry_Int_Tables_number   8
_chemical_formula_structural   K2NaOs
_chemical_formula_sum   'K4 Na2 Os2'
_cell_volume   260.23
_cell_formula_units_Z   2
loop_
 _symmetry_equiv_pos_site_id
 _symmetry_equiv_pos_as_xyz
  1  'x, y, z'
  2  'x, -y, z'
  3  'x+1/2, y+1/2, z'
  4  'x+1/2, -y+1/2, 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  4  0.33  0.21  0.12  1.0
  Na  Na1  2  0.0  0.0  0.0  1.0
  Os  Os2  2  0.09  0.0  0.09  1.0

K K Na Os
K K Na Os 0 2 o + + 0 2 o o o 0 3 o + o 0 3 o o - 1 2 o o o 1 2 + o + 1 3 o o - 1 3 + o o 2 3 o o - 
K2NaOs is Indium-like structured and crystallizes in the monoclinic Cm space group. The structure is zero-dimensional and consists of two K2NaOs clusters. K(1) is bonded in a distorted single-bond geometry to one Os(1) atom. The K(1)-Os(1) bond length is 2.27 Å. Na(1) is bonded in a single-bond geometry to one Os(1) atom. The Na(1)-Os(1) bond length is 0.57 Å. Os(1) is bonded in a single-bond geometry to two equivalent K(1) and one Na(1) atom.