data_[Mg8Ni8Sn4]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  Mg  1.3100  1.5000  0.8600
  Ni  1.9100  1.3500  0.7400
  Sn  1.9600  1.4500  0.8300
]
_symmetry_space_group_name_H-M [C2/c]
_cell_length_a [9.2632]
_cell_length_b [5.1228]
_cell_length_c [7.4508]
_cell_angle_alpha [90.0000]
_cell_angle_beta [104.7403]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [15]
_chemical_formula_structural [Mg2Ni2Sn]
_chemical_formula_sum '[Mg8 Ni8 Sn4]'
_cell_volume [341.9302]
_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  8  0.1571  0.3519  0.1522  1.0
  Ni  Ni1  8  0.1342  0.1472  0.4950  1.0
  Sn  Sn2  4  0.0000  0.1764  0.7500  1.0
]