data_[Pm6Co2C8]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  Pm  1.1300  1.8500  1.1100
  Co  1.8800  1.3500  0.7683
  C  2.5500  0.7000  0.3000
]
_symmetry_space_group_name_H-M [C2/m]
_cell_length_a [16.3867]
_cell_length_b [3.6998]
_cell_length_c [4.2202]
_cell_angle_alpha [90.0000]
_cell_angle_beta [98.5109]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [12]
_chemical_formula_structural [Pm3CoC4]
_chemical_formula_sum '[Pm6 Co2 C8]'
_cell_volume [253.0374]
_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  0.1766  0.0000  0.2147  1
  Pm  Pm1  2  0.0000  0.0000  0.5000  1
  Co  Co2  2  0.0000  0.5000  0.0000  1
  C  C3  4  0.0968  0.5000  0.8370  1
  C  C4  4  0.1690  0.5000  0.7207  1
]