data_K2YSe
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   10.33
_cell_length_b   10.33
_cell_length_c   4.26
_cell_angle_alpha   100.92
_cell_angle_beta   100.92
_cell_angle_gamma   21.58
_symmetry_Int_Tables_number   1
_chemical_formula_structural   K2YSe
_chemical_formula_sum   'K2 Y1 Se1'
_cell_volume   164.1
_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  0.35  0.0  0.73  1.0
  K  K1  1  0.12  0.0  0.46  1.0
  Y  Y3  1  0.73  0.0  0.09  1.0
  Se  Se2  1  0.0  0.0  0.0  1.0

data_K2YSe
_symmetry_space_group_name_H-M   P1
_cell_length_a   3.87
_cell_length_b   4.26
_cell_length_c   10.33
_cell_angle_alpha   100.92
_cell_angle_beta   100.79
_cell_angle_gamma   90.0
_symmetry_Int_Tables_number   1
_chemical_formula_structural   K2YSe
_chemical_formula_sum   'K2 Y1 Se1'
_cell_volume   164.1
_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  0.46  0.12  1.0
  K  K1  1  0.0  0.73  0.35  1.0
  Y  Y2  1  0.0  0.09  0.73  1.0
  Se  Se3  1  0.0  0.0  0.0  1.0

K K Y Se