data_[Mg12Sn4Rh8]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  Mg  1.3100  1.5000  0.8600
  Sn  1.9600  1.4500  0.8300
  Rh  2.2800  1.3500  0.7450
]
_symmetry_space_group_name_H-M [C2/m]
_cell_length_a [13.8898]
_cell_length_b [4.4566]
_cell_length_c [7.0253]
_cell_angle_alpha [90.0000]
_cell_angle_beta [93.9171]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [12]
_chemical_formula_structural [Mg3SnRh2]
_chemical_formula_sum '[Mg12 Sn4 Rh8]'
_cell_volume [433.8561]
_cell_formula_units_Z [4]
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
[
  Mg  Mg0  4  0.0634  0.0000  0.8393  1.0
  Mg  Mg1  4  0.1059  0.5000  0.5669  1.0
  Mg  Mg2  4  0.1863  0.5000  0.9551  1.0
  Sn  Sn3  4  0.1482  0.0000  0.3044  1.0
  Rh  Rh4  4  0.0447  0.5000  0.1878  1.0
  Rh  Rh5  4  0.2355  0.0000  0.6700  1.0
]