data_[Rb2Mg2Ni2Cl12]
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
  Ni  1.9100  1.3500  0.7400
  Cl  3.1600  1.0000  0.7800
]
_symmetry_space_group_name_H-M [C2]
_cell_length_a [6.4839]
_cell_length_b [10.6448]
_cell_length_c [7.4059]
_cell_angle_alpha [90.0000]
_cell_angle_beta [92.1975]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [5]
_chemical_formula_structural [RbMgNiCl6]
_chemical_formula_sum '[Rb2 Mg2 Ni2 Cl12]'
_cell_volume [510.7751]
_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  2  0.0000  0.9938  0.5000  1.0
  Mg  Mg1  2  0.0000  0.3235  0.0000  1.0
  Ni  Ni2  2  0.0000  0.6663  0.0000  1.0
  Cl  Cl3  4  0.1303  0.5132  0.1782  1.0
  Cl  Cl4  4  0.1689  0.8108  0.1730  1.0
  Cl  Cl5  4  0.1981  0.1837  0.2021  1.0
]