data_[Na4Zn2H8]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  Na  0.9300  1.8000  1.1600
  Zn  1.6500  1.3500  0.8800
  H  2.2000  0.2500  0.0000
]
_symmetry_space_group_name_H-M [P2_1/m]
_cell_length_a [5.3671]
_cell_length_b [5.4429]
_cell_length_c [6.6467]
_cell_angle_alpha [90.0000]
_cell_angle_beta [107.1161]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [11]
_chemical_formula_structural [Na2ZnH4]
_chemical_formula_sum '[Na4 Zn2 H8]'
_cell_volume [185.5654]
_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
[
  Na  Na0  2  0.2140  0.2500  0.4322  1.0
  Na  Na1  2  0.2967  0.2500  0.9684  1.0
  Zn  Zn2  2  0.2673  0.7500  0.2049  1.0
  H  H3  4  0.4651  0.5091  0.2617  1.0
  H  H4  2  0.0584  0.7500  0.3459  1.0
  H  H5  2  0.1161  0.7500  0.9479  1.0
]