data_[Pm4Cr4Si4C2]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  Pm  1.1300  1.8500  1.1100
  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 [C2/m]
_cell_length_a [12.6498]
_cell_length_b [3.7089]
_cell_length_c [5.4823]
_cell_angle_alpha [90.0000]
_cell_angle_beta [106.3677]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [12]
_chemical_formula_structural [Pm2Cr2Si2C]
_chemical_formula_sum '[Pm4 Cr4 Si4 C2]'
_cell_volume [246.7927]
_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
[
  Pm  Pm0  4  0.1118  0.5000  0.2926  1
  Cr  Cr1  4  0.0952  0.0000  0.7926  1
  Si  Si2  4  0.2231  0.5000  0.8538  1
  C  C3  2  0.0000  0.0000  0.0000  1
]