data_[K1Sr2Ca1Zn1]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  K  0.8200  2.2000  1.5200
  Sr  0.9500  2.0000  1.3200
  Ca  1.0000  1.8000  1.1400
  Zn  1.6500  1.3500  0.8800
]
_symmetry_space_group_name_H-M [P4/mmm]
_cell_length_a [6.3032]
_cell_length_b [6.3032]
_cell_length_c [6.0860]
_cell_angle_alpha [90.0000]
_cell_angle_beta [90.0000]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [123]
_chemical_formula_structural [KSr2CaZn]
_chemical_formula_sum '[K1 Sr2 Ca1 Zn1]'
_cell_volume [241.8025]
_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  0.5000  0.5000  0.5000  1
  Sr  Sr1  2  0.0000  0.5000  0.0000  1
  Ca  Ca2  1  0.0000  0.0000  0.5000  1
  Zn  Zn3  1  0.0000  0.0000  0.0000  1
]