data_[Rb4Sm2Zn4O8]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  Rb  0.8200  2.3500  1.6600
  Sm  1.1700  1.8500  1.2290
  Zn  1.6500  1.3500  0.8800
  O  3.4400  0.6000  1.2600
]
_symmetry_space_group_name_H-M [C2/m]
_cell_length_a [14.4847]
_cell_length_b [3.4686]
_cell_length_c [6.9349]
_cell_angle_alpha [90.0000]
_cell_angle_beta [107.7045]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [12]
_chemical_formula_structural [Rb2SmZn2O4]
_chemical_formula_sum '[Rb4 Sm2 Zn4 O8]'
_cell_volume [331.9163]
_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
[
  Rb  Rb0  4  0.1294  0.0000  0.5603  1
  Sm  Sm1  2  0.0000  0.0000  0.0000  1
  Zn  Zn2  4  0.1824  0.5000  0.0347  1
  O  O3  4  0.0476  0.5000  0.8206  1
  O  O4  4  0.1716  0.0000  0.1876  1
]