data_[K1Mg1Zn2F8]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  K  0.8200  2.2000  1.5200
  Mg  1.3100  1.5000  0.8600
  Zn  1.6500  1.3500  0.8800
  F  3.9800  0.5000  0.7050
]
_symmetry_space_group_name_H-M [P-1]
_cell_length_a [4.7653]
_cell_length_b [4.7717]
_cell_length_c [7.8416]
_cell_angle_alpha [88.7144]
_cell_angle_beta [87.2364]
_cell_angle_gamma [86.0110]
_symmetry_Int_Tables_number [2]
_chemical_formula_structural [KMgZn2F8]
_chemical_formula_sum '[K1 Mg1 Zn2 F8]'
_cell_volume [177.6340]
_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  0.0000  0.0000  0.5000  1
  Mg  Mg1  1  0.0000  0.0000  0.0000  1
  Zn  Zn2  2  0.4765  0.4846  0.1921  1
  F  F3  2  0.2058  0.8082  0.1896  1
  F  F4  2  0.2105  0.7980  0.8069  1
  F  F5  2  0.2941  0.3045  0.9890  1
  F  F6  2  0.3392  0.3780  0.4132  1
]