data_K2SnSb
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   6.57
_cell_length_b   6.57
_cell_length_c   6.57
_cell_angle_alpha   136.82
_cell_angle_beta   136.82
_cell_angle_gamma   62.72
_symmetry_Int_Tables_number   1
_chemical_formula_structural   K2SnSb
_chemical_formula_sum   'K2 Sn1 Sb1'
_cell_volume   131.08
_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  0.42  0.0  0.8  1.0
  K  K1  1  0.0  0.42  0.8  1.0
  Sn  Sn3  1  0.0  0.0  0.0  1.0
  Sb  Sb2  1  0.0  0.0  0.61  1.0

data_K2SnSb
_symmetry_space_group_name_H-M   Cm
_cell_length_a   6.84
_cell_length_b   6.84
_cell_length_c   6.57
_cell_angle_alpha   90.0
_cell_angle_beta   121.36
_cell_angle_gamma   90.0
_symmetry_Int_Tables_number   8
_chemical_formula_structural   K2SnSb
_chemical_formula_sum   'K4 Sn2 Sb2'
_cell_volume   262.16
_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  0.4  0.21  0.61  1.0
  Sn  Sn1  2  0.0  0.0  0.0  1.0
  Sb  Sb2  2  0.39  0.0  0.39  1.0

K K Sn Sb
K K Sn Sb 0 3 o o o 0 2 + o + 1 3 o o o 1 2 o + + 2 3 o o - 