data_[Sm2Cr2N2O2]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  Sm  1.1700  1.8500  1.2290
  Cr  1.6600  1.4000  0.9400
  N  3.0400  0.6500  0.6300
  O  3.4400  0.6000  1.2600
]
_symmetry_space_group_name_H-M [Pmma]
_cell_length_a [4.5746]
_cell_length_b [4.0195]
_cell_length_c [6.7797]
_cell_angle_alpha [90.0000]
_cell_angle_beta [90.0000]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [51]
_chemical_formula_structural [SmCrNO]
_chemical_formula_sum '[Sm2 Cr2 N2 O2]'
_cell_volume [124.6651]
_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
[
  Sm  Sm0  2  0.2500  0.5000  0.8057  1
  Cr  Cr1  2  0.2500  0.0000  0.3487  1
  N  N2  2  0.2500  0.0000  0.6461  1
  O  O3  2  0.2500  0.5000  0.1492  1
]