data_[Na2Ge2B2]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  Na  0.9300  1.8000  1.1600
  Ge  2.0100  1.2500  0.7700
  B  2.0400  0.8500  0.4100
]
_symmetry_space_group_name_H-M [Pmma]
_cell_length_a [6.1803]
_cell_length_b [4.8028]
_cell_length_c [3.8688]
_cell_angle_alpha [90.0000]
_cell_angle_beta [90.0000]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [51]
_chemical_formula_structural [NaGeB]
_chemical_formula_sum '[Na2 Ge2 B2]'
_cell_volume [114.8350]
_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  0.2500  0.0000  0.6841  1
  Ge  Ge1  2  0.2500  0.5000  0.1602  1
  B  B2  2  0.0000  0.5000  0.5000  1
]