data_[Gd4As8C2]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  Gd  1.2000  1.8000  1.0750
  As  2.1800  1.1500  0.6600
  C  2.5500  0.7000  0.3000
]
_symmetry_space_group_name_H-M [I4/mmm]
_cell_length_a [4.2487]
_cell_length_b [4.2487]
_cell_length_c [16.1278]
_cell_angle_alpha [90.0000]
_cell_angle_beta [90.0000]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [139]
_chemical_formula_structural [Gd2As4C]
_chemical_formula_sum '[Gd4 As8 C2]'
_cell_volume [291.1305]
_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
[
  Gd  Gd0  4  0.0000  0.0000  0.3479  1
  As  As1  4  0.0000  0.0000  0.1682  1
  As  As2  4  0.0000  0.5000  0.0000  1
  C  C3  2  0.0000  0.0000  0.0000  1
]