data_[Na1Hf1As2O7]
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
  As  2.1800  1.1500  0.6600
  O  3.4400  0.6000  1.2600
]
_symmetry_space_group_name_H-M [P1]
_cell_length_a [4.9182]
_cell_length_b [5.5124]
_cell_length_c [5.9289]
_cell_angle_alpha [100.8956]
_cell_angle_beta [102.2522]
_cell_angle_gamma [96.0228]
_symmetry_Int_Tables_number [1]
_chemical_formula_structural [NaHfAs2O7]
_chemical_formula_sum '[Na1 Hf1 As2 O7]'
_cell_volume [152.4756]
_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  0.5634  0.2244  0.7513  1.0
  Hf  Hf1  1  0.4815  0.6143  0.3663  1.0
  As  As2  1  0.0864  0.7756  0.8127  1.0
  As  As3  1  0.9010  0.1395  0.2504  1.0
  O  O4  1  0.0114  0.0715  0.9121  1.0
  O  O5  1  0.2145  0.3257  0.4277  1.0
  O  O6  1  0.2432  0.6614  0.0522  1.0
  O  O7  1  0.3110  0.8213  0.6340  1.0
  O  O8  1  0.6809  0.3645  0.1793  1.0
  O  O9  1  0.7202  0.9635  0.4162  1.0
  O  O10  1  0.7866  0.5715  0.6647  1.0
]