data_[K2Be4As2]
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
  As  2.1800  1.1500  0.6600
]
_symmetry_space_group_name_H-M [Cm]
_cell_length_a [10.0307]
_cell_length_b [3.9279]
_cell_length_c [5.5291]
_cell_angle_alpha [90.0000]
_cell_angle_beta [106.1049]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [8]
_chemical_formula_structural [KBe2As]
_chemical_formula_sum '[K2 Be4 As2]'
_cell_volume [209.2951]
_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  0.0557  0.5000  0.4726  1
  Be  Be1  2  0.1850  0.0000  0.9992  1
  Be  Be2  2  0.4679  0.5000  0.9480  1
  As  As3  2  0.2914  0.5000  0.0802  1
]