data_[Sm4Al2Si2Ge2]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  Sm  1.1700  1.8500  1.2290
  Al  1.6100  1.2500  0.6750
  Si  1.9000  1.1000  0.5400
  Ge  2.0100  1.2500  0.7700
]
_symmetry_space_group_name_H-M [P2_1/m]
_cell_length_a [7.2983]
_cell_length_b [4.0896]
_cell_length_c [8.6685]
_cell_angle_alpha [90.0000]
_cell_angle_beta [108.0160]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [11]
_chemical_formula_structural [Sm2AlSiGe]
_chemical_formula_sum '[Sm4 Al2 Si2 Ge2]'
_cell_volume [246.0458]
_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  0.1647  0.7500  0.4103  1
  Sm  Sm1  2  0.2600  0.7500  0.9650  1
  Al  Al2  2  0.4877  0.2500  0.2755  1
  Si  Si3  2  0.2973  0.2500  0.7031  1
  Ge  Ge4  2  0.1450  0.2500  0.1686  1
]