data_[K2Ag4Sn4]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  K  0.8200  2.2000  1.5200
  Ag  1.9300  1.6000  1.0867
  Sn  1.9600  1.4500  0.8300
]
_symmetry_space_group_name_H-M [C2/m]
_cell_length_a [6.7608]
_cell_length_b [7.3240]
_cell_length_c [6.2772]
_cell_angle_alpha [90.0000]
_cell_angle_beta [117.7741]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [12]
_chemical_formula_structural [K(AgSn)2]
_chemical_formula_sum '[K2 Ag4 Sn4]'
_cell_volume [275.0174]
_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  2  0.0000  0.0000  0.0000  1
  Ag  Ag1  4  0.0000  0.2063  0.5000  1
  Sn  Sn2  4  0.1011  0.5000  0.2681  1
]