data_[Sm2Gd2Ni4Ge8]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  Sm  1.1700  1.8500  1.2290
  Gd  1.2000  1.8000  1.0750
  Ni  1.9100  1.3500  0.7400
  Ge  2.0100  1.2500  0.7700
]
_symmetry_space_group_name_H-M [Amm2]
_cell_length_a [4.2170]
_cell_length_b [4.2004]
_cell_length_c [16.6488]
_cell_angle_alpha [90.0000]
_cell_angle_beta [90.0000]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [38]
_chemical_formula_structural [SmGd(NiGe2)2]
_chemical_formula_sum '[Sm2 Gd2 Ni4 Ge8]'
_cell_volume [294.9040]
_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
[
  Sm  Sm0  2  0.5000  0.0000  0.1077  1
  Gd  Gd1  2  0.0000  0.0000  0.8920  1
  Ni  Ni2  2  0.0000  0.0000  0.6816  1
  Ni  Ni3  2  0.5000  0.0000  0.3186  1
  Ge  Ge4  2  0.0000  0.0000  0.2508  1
  Ge  Ge5  2  0.0000  0.0000  0.5420  1
  Ge  Ge6  2  0.5000  0.0000  0.4575  1
  Ge  Ge7  2  0.5000  0.0000  0.7496  1
]