data_K3Y
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   7.7
_cell_length_b   7.7
_cell_length_c   7.7
_cell_angle_alpha   134.83
_cell_angle_beta   134.83
_cell_angle_gamma   65.79
_symmetry_Int_Tables_number   1
_chemical_formula_structural   K3Y
_chemical_formula_sum   'K3 Y1'
_cell_volume   225.78
_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  0.96  0.0  0.23  1.0
  K  K1  1  0.0  0.96  0.23  1.0
  K  K2  1  0.0  0.0  0.0  1.0
  Y  Y3  1  0.0  0.0  0.46  1.0

data_K3Y
_symmetry_space_group_name_H-M   Cm
_cell_length_a   8.36
_cell_length_b   8.36
_cell_length_c   7.7
_cell_angle_alpha   90.0
_cell_angle_beta   122.9
_cell_angle_gamma   90.0
_symmetry_Int_Tables_number   8
_chemical_formula_structural   K3Y
_chemical_formula_sum   'K6 Y2'
_cell_volume   451.57
_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  0.25  0.48  0.72  1.0
  K  K1  2  0.0  0.0  0.0  1.0
  Y  Y2  2  0.04  0.5  0.54  1.0

K K K Y