data_[Y4Cr8Si4C4]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  Y  1.2200  1.8000  1.0400
  Cr  1.6600  1.4000  0.9400
  Si  1.9000  1.1000  0.5400
  C  2.5500  0.7000  0.3000
]
_symmetry_space_group_name_H-M [Cmcm]
_cell_length_a [3.6876]
_cell_length_b [10.5050]
_cell_length_c [7.2350]
_cell_angle_alpha [90.0000]
_cell_angle_beta [90.0000]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [63]
_chemical_formula_structural [YCr2SiC]
_chemical_formula_sum '[Y4 Cr8 Si4 C4]'
_cell_volume [280.2741]
_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  0.0000  0.4621  0.7500  1.0
  Cr  Cr1  8  0.0000  0.1748  0.5587  1.0
  Si  Si2  4  0.0000  0.2603  0.2500  1.0
  C  C3  4  0.0000  0.0000  0.0000  1.0
]