data_[K2Be4Zn2]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  K  0.8200  2.2000  1.5200
  Be  1.5700  1.0500  0.5900
  Zn  1.6500  1.3500  0.8800
]
_symmetry_space_group_name_H-M [C2/m]
_cell_length_a [8.9077]
_cell_length_b [2.8942]
_cell_length_c [6.4163]
_cell_angle_alpha [90.0000]
_cell_angle_beta [105.4439]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [12]
_chemical_formula_structural [KBe2Zn]
_chemical_formula_sum '[K2 Be4 Zn2]'
_cell_volume [159.4414]
_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  0.5000  1
  Be  Be1  4  0.2044  0.0000  0.0858  1
  Zn  Zn2  2  0.0000  0.5000  0.0000  1
]