data_[K1Sr2Y1I8]
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
  Y  1.2200  1.8000  1.0400
  I  2.6600  1.4000  1.2733
]
_symmetry_space_group_name_H-M [P2/m]
_cell_length_a [7.3844]
_cell_length_b [9.9668]
_cell_length_c [7.8102]
_cell_angle_alpha [90.0000]
_cell_angle_beta [90.0579]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [10]
_chemical_formula_structural [KSr2YI8]
_chemical_formula_sum '[K1 Sr2 Y1 I8]'
_cell_volume [574.8225]
_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  0.5000  0.0000  1.0
  Sr  Sr1  2  0.5000  0.2503  0.5000  1.0
  Y  Y2  1  0.0000  0.0000  0.0000  1.0
  I  I3  4  0.2367  0.2164  0.1542  1.0
  I  I4  2  0.2448  0.0000  0.6734  1.0
  I  I5  2  0.2581  0.5000  0.6343  1.0
]