data_[Rb2Hg2N2]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  Rb  0.8200  2.3500  1.6600
  Hg  2.0000  1.5000  1.2450
  N  3.0400  0.6500  0.6300
]
_symmetry_space_group_name_H-M [Pmc2_1]
_cell_length_a [15.0000]
_cell_length_b [12.0016]
_cell_length_c [6.6599]
_cell_angle_alpha [90.0000]
_cell_angle_beta [90.0000]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [26]
_chemical_formula_structural [RbHgN]
_chemical_formula_sum '[Rb2 Hg2 N2]'
_cell_volume [1198.9449]
_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  0.5000  0.3068  0.4244  1
  Hg  Hg1  2  0.5000  0.0013  0.0855  1
  N  N2  2  0.5000  0.0981  0.3363  1
]