data_[Na2Hf1Ag1Se4]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  Na  0.9300  1.8000  1.1600
  Hf  1.3000  1.5500  0.8500
  Ag  1.9300  1.6000  1.0867
  Se  2.5500  1.1500  1.0133
]
_symmetry_space_group_name_H-M [P2/m]
_cell_length_a [7.3432]
_cell_length_b [3.8968]
_cell_length_c [7.4237]
_cell_angle_alpha [90.0000]
_cell_angle_beta [112.8043]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [10]
_chemical_formula_structural [Na2HfAgSe4]
_chemical_formula_sum '[Na2 Hf1 Ag1 Se4]'
_cell_volume [195.8243]
_cell_formula_units_Z [1]
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  1  0.0000  0.5000  0.5000  1.0
  Na  Na1  1  0.5000  0.0000  0.5000  1.0
  Hf  Hf2  1  0.5000  0.5000  0.0000  1.0
  Ag  Ag3  1  0.0000  0.0000  0.0000  1.0
  Se  Se4  2  0.2463  0.5000  0.1898  1.0
  Se  Se5  2  0.2898  0.0000  0.7598  1.0
]