data_[Sm4Mn4Si4N2]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  Sm  1.1700  1.8500  1.2290
  Mn  1.5500  1.4000  0.6483
  Si  1.9000  1.1000  0.5400
  N  3.0400  0.6500  0.6300
]
_symmetry_space_group_name_H-M [C2/m]
_cell_length_a [10.8104]
_cell_length_b [3.9607]
_cell_length_c [6.9097]
_cell_angle_alpha [90.0000]
_cell_angle_beta [129.4655]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [12]
_chemical_formula_structural [Sm2Mn2Si2N]
_chemical_formula_sum '[Sm4 Mn4 Si4 N2]'
_cell_volume [228.4002]
_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  4  0.0595  0.5000  0.2934  1.0
  Mn  Mn1  4  0.1962  0.0000  0.0910  1.0
  Si  Si2  4  0.1661  0.0000  0.7242  1.0
  N  N3  2  0.0000  0.0000  0.0000  1.0
]