data_[Er4Be2Ge2C2]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  Er  1.2400  1.7500  1.0300
  Be  1.5700  1.0500  0.5900
  Ge  2.0100  1.2500  0.7700
  C  2.5500  0.7000  0.3000
]
_symmetry_space_group_name_H-M [P2_1/m]
_cell_length_a [6.3044]
_cell_length_b [3.7006]
_cell_length_c [7.8973]
_cell_angle_alpha [90.0000]
_cell_angle_beta [107.9110]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [11]
_chemical_formula_structural [Er2BeGeC]
_chemical_formula_sum '[Er4 Be2 Ge2 C2]'
_cell_volume [175.3145]
_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  0.1988  0.2500  0.3852  1.0
  Er  Er1  2  0.2142  0.2500  0.9669  1.0
  Be  Be2  2  0.4542  0.7500  0.2464  1.0
  Ge  Ge3  2  0.3218  0.7500  0.7000  1.0
  C  C4  2  0.1739  0.7500  0.1735  1.0
]