data_[Na4Sr2Ga2Ge4]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  Na  0.9300  1.8000  1.1600
  Sr  0.9500  2.0000  1.3200
  Ga  1.8100  1.3000  0.7600
  Ge  2.0100  1.2500  0.7700
]
_symmetry_space_group_name_H-M [Pmc2_1]
_cell_length_a [4.4529]
_cell_length_b [8.7187]
_cell_length_c [7.8075]
_cell_angle_alpha [90.0000]
_cell_angle_beta [90.0000]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [26]
_chemical_formula_structural [Na2SrGaGe2]
_chemical_formula_sum '[Na4 Sr2 Ga2 Ge4]'
_cell_volume [303.1116]
_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  0.0000  0.1578  0.3454  1.0
  Na  Na1  2  0.5000  0.0739  0.0246  1.0
  Sr  Sr2  2  0.0000  0.4386  0.0017  1.0
  Ga  Ga3  2  0.5000  0.3247  0.6535  1.0
  Ge  Ge4  2  0.0000  0.1688  0.7231  1.0
  Ge  Ge5  2  0.5000  0.3802  0.2973  1.0
]