data_[Be2Zn2Si4P8]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  Be  1.5700  1.0500  0.5900
  Zn  1.6500  1.3500  0.8800
  Si  1.9000  1.1000  0.5400
  P  2.1900  1.0000  0.5500
]
_symmetry_space_group_name_H-M [I-4]
_cell_length_a [5.2631]
_cell_length_b [5.2631]
_cell_length_c [10.3902]
_cell_angle_alpha [90.0000]
_cell_angle_beta [90.0000]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [82]
_chemical_formula_structural [BeZn(SiP2)2]
_chemical_formula_sum '[Be2 Zn2 Si4 P8]'
_cell_volume [287.8145]
_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
[
  Be  Be0  2  0.0000  0.0000  0.0000  1
  Zn  Zn1  2  0.0000  0.5000  0.7500  1
  Si  Si2  2  0.0000  0.0000  0.5000  1
  Si  Si3  2  0.0000  0.5000  0.2500  1
  P  P4  8  0.2358  0.2515  0.1191  1
]