data_[Ca4Al2Zn2]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  Ca  1.0000  1.8000  1.1400
  Al  1.6100  1.2500  0.6750
  Zn  1.6500  1.3500  0.8800
]
_symmetry_space_group_name_H-M [P2_1/m]
_cell_length_a [6.2406]
_cell_length_b [4.3562]
_cell_length_c [8.6347]
_cell_angle_alpha [90.0000]
_cell_angle_beta [110.1630]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [11]
_chemical_formula_structural [Ca2AlZn]
_chemical_formula_sum '[Ca4 Al2 Zn2]'
_cell_volume [220.3543]
_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
[
  Ca  Ca0  2  0.2039  0.7500  0.9196  1.0
  Ca  Ca1  2  0.2093  0.7500  0.4337  1.0
  Al  Al2  2  0.3635  0.2500  0.2154  1.0
  Zn  Zn3  2  0.3766  0.2500  0.7189  1.0
]