data_[Nd16Sn4Hg4C4]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  Nd  1.1400  1.8500  1.2765
  Sn  1.9600  1.4500  0.8300
  Hg  2.0000  1.5000  1.2450
  C  2.5500  0.7000  0.3000
]
_symmetry_space_group_name_H-M [Cmcm]
_cell_length_a [7.2655]
_cell_length_b [15.5265]
_cell_length_c [7.2564]
_cell_angle_alpha [90.0000]
_cell_angle_beta [90.0000]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [63]
_chemical_formula_structural [Nd4SnHgC]
_chemical_formula_sum '[Nd16 Sn4 Hg4 C4]'
_cell_volume [818.5759]
_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
[
  Nd  Nd0  8  0.2500  0.2500  0.0000  1
  Nd  Nd1  4  0.0000  0.0817  0.7500  1
  Nd  Nd2  4  0.0000  0.4139  0.7500  1
  Sn  Sn3  4  0.0000  0.3802  0.2500  1
  Hg  Hg4  4  0.0000  0.1185  0.2500  1
  C  C5  4  0.0000  0.2493  0.7500  1
]