data_[Er4Cr2Ge8]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  Er  1.2400  1.7500  1.0300
  Cr  1.6600  1.4000  0.9400
  Ge  2.0100  1.2500  0.7700
]
_symmetry_space_group_name_H-M [Amm2]
_cell_length_a [4.2884]
_cell_length_b [4.3153]
_cell_length_c [15.2859]
_cell_angle_alpha [90.0000]
_cell_angle_beta [90.0000]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [38]
_chemical_formula_structural [Er2CrGe4]
_chemical_formula_sum '[Er4 Cr2 Ge8]'
_cell_volume [282.8753]
_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
[
  Er  Er0  2  0.0000  0.0000  0.3966  1.0
  Er  Er1  2  0.5000  0.0000  0.5986  1.0
  Cr  Cr2  2  0.5000  0.0000  0.7927  1.0
  Ge  Ge3  2  0.0000  0.0000  0.0582  1.0
  Ge  Ge4  2  0.0000  0.0000  0.7472  1.0
  Ge  Ge5  2  0.5000  0.0000  0.2420  1.0
  Ge  Ge6  2  0.5000  0.0000  0.9475  1.0
]