data_[Rb2Mg12Sn7]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  Rb  0.8200  2.3500  1.6600
  Mg  1.3100  1.5000  0.8600
  Sn  1.9600  1.4500  0.8300
]
_symmetry_space_group_name_H-M [P-3]
_cell_length_a [11.9251]
_cell_length_b [11.9251]
_cell_length_c [4.6386]
_cell_angle_alpha [90.0000]
_cell_angle_beta [90.0000]
_cell_angle_gamma [120.0000]
_symmetry_Int_Tables_number [147]
_chemical_formula_structural [Rb2Mg12Sn7]
_chemical_formula_sum '[Rb2 Mg12 Sn7]'
_cell_volume [571.2705]
_cell_formula_units_Z [1]
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  2  0.3333  0.6667  0.2555  1
  Mg  Mg1  6  0.0573  0.4320  0.7495  1
  Mg  Mg2  6  0.1180  0.2608  0.2533  1
  Sn  Sn3  6  0.1107  0.7039  0.7538  1
  Sn  Sn4  1  0.0000  0.0000  0.5000  1
]