data_[Ho4Er4C4]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  Ho  1.2300  1.7500  1.0410
  Er  1.2400  1.7500  1.0300
  C  2.5500  0.7000  0.3000
]
_symmetry_space_group_name_H-M [C2/m]
_cell_length_a [12.3137]
_cell_length_b [3.5714]
_cell_length_c [6.1860]
_cell_angle_alpha [90.0000]
_cell_angle_beta [99.7087]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [12]
_chemical_formula_structural [HoErC]
_chemical_formula_sum '[Ho4 Er4 C4]'
_cell_volume [268.1472]
_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
[
  Ho  Ho0  4  0.1105  0.5000  0.3702  1.0
  Er  Er1  4  0.1094  0.0000  0.8699  1.0
  C  C2  2  0.0000  0.0000  0.5000  1.0
  C  C3  2  0.0000  0.5000  0.0000  1.0
]