data_[Y4Er4C4]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  Y  1.2200  1.8000  1.0400
  Er  1.2400  1.7500  1.0300
  C  2.5500  0.7000  0.3000
]
_symmetry_space_group_name_H-M [P2_1/c]
_cell_length_a [6.2109]
_cell_length_b [7.1555]
_cell_length_c [6.2033]
_cell_angle_alpha [90.0000]
_cell_angle_beta [91.9561]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [14]
_chemical_formula_structural [YErC]
_chemical_formula_sum '[Y4 Er4 C4]'
_cell_volume [275.5261]
_cell_formula_units_Z [4]
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
[
  Y  Y0  4  0.2799  0.6241  0.9099  1.0
  Er  Er1  4  0.2872  0.1259  0.9098  1.0
  C  C2  4  0.5000  0.1251  0.2476  1.0
]