data_K2Zn
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   7.17
_cell_length_b   7.17
_cell_length_c   7.17
_cell_angle_alpha   103.05
_cell_angle_beta   103.05
_cell_angle_gamma   123.25
_symmetry_Int_Tables_number   1
_chemical_formula_structural   K2Zn
_chemical_formula_sum   'K4 Zn2'
_cell_volume   271.63
_cell_formula_units_Z   2
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  0.54  0.92  0.41  1.0
  K  K1  1  0.92  0.54  0.0  1.0
  K  K2  1  0.54  0.0  0.0  1.0
  K  K3  1  0.92  0.46  0.41  1.0
  Zn  Zn4  1  0.0  0.0  0.7  1.0
  Zn  Zn5  1  0.0  0.0  0.11  1.0

data_K2Zn
_symmetry_space_group_name_H-M   P1
_cell_length_a   6.82
_cell_length_b   7.17
_cell_length_c   7.17
_cell_angle_alpha   76.95
_cell_angle_beta   61.62
_cell_angle_gamma   61.62
_symmetry_Int_Tables_number   1
_chemical_formula_structural   K2Zn
_chemical_formula_sum   'K4 Zn2'
_cell_volume   271.63
_cell_formula_units_Z   2
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  0.54  0.0  1.0
  K  K1  1  0.46  0.46  0.59  1.0
  K  K2  1  0.54  0.38  0.0  1.0
  K  K3  1  0.92  0.62  0.59  1.0
  Zn  Zn4  1  0.0  0.0  0.3  1.0
  Zn  Zn5  1  0.0  0.0  0.89  1.0

K K K K Zn Zn