data_[Na2Sr2Ge2]
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
  Ge  2.0100  1.2500  0.7700
]
_symmetry_space_group_name_H-M [P1]
_cell_length_a [4.1533]
_cell_length_b [6.1488]
_cell_length_c [8.5376]
_cell_angle_alpha [77.1103]
_cell_angle_beta [76.4561]
_cell_angle_gamma [89.8979]
_symmetry_Int_Tables_number [1]
_chemical_formula_structural [NaSrGe]
_chemical_formula_sum '[Na2 Sr2 Ge2]'
_cell_volume [206.3333]
_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  1  0.6409  0.5535  0.3465  1
  Na  Na1  1  0.8912  0.4258  0.8204  1
  Sr  Sr2  1  0.2120  0.0807  0.1897  1
  Sr  Sr3  1  0.4618  0.9576  0.6733  1
  Ge  Ge4  1  0.2840  0.6112  0.0447  1
  Ge  Ge5  1  0.8190  0.8788  0.9697  1
]