data_LaZnHg2
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   4.73
_cell_length_b   4.73
_cell_length_c   4.62
_cell_angle_alpha   90.0
_cell_angle_beta   90.0
_cell_angle_gamma   90.0
_symmetry_Int_Tables_number   1
_chemical_formula_structural   LaZnHg2
_chemical_formula_sum   'La1 Zn1 Hg2'
_cell_volume   103.27
_cell_formula_units_Z   1
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
  La  La2  1  0.36  0.36  0.0  1.0
  Zn  Zn3  1  0.0  0.0  0.0  1.0
  Hg  Hg0  1  0.0  0.36  0.31  1.0
  Hg  Hg1  1  0.36  0.0  0.31  1.0

data_LaZnHg2
_symmetry_space_group_name_H-M   Cm
_cell_length_a   6.68
_cell_length_b   6.68
_cell_length_c   4.62
_cell_angle_alpha   90.0
_cell_angle_beta   90.0
_cell_angle_gamma   90.0
_symmetry_Int_Tables_number   8
_chemical_formula_structural   LaZnHg2
_chemical_formula_sum   'La2 Zn2 Hg4'
_cell_volume   206.53
_cell_formula_units_Z   2
loop_
 _symmetry_equiv_pos_site_id
 _symmetry_equiv_pos_as_xyz
  1  'x, y, z'
  2  'x, -y, z'
  3  'x+1/2, y+1/2, z'
  4  'x+1/2, -y+1/2, 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
  La  La0  2  0.36  0.0  -0.0  1.0
  Zn  Zn1  2  0.0  0.0  0.0  1.0
  Hg  Hg2  4  0.18  0.18  0.31  1.0

La Zn Hg Hg
LaHg2Zn crystallizes in the monoclinic Cm space group. La(1) is bonded in a 9-coordinate geometry to six equivalent Hg(1) and three equivalent Zn(1) atoms. There are a spread of La(1)-Hg(1) bond distances ranging from 2.24-3.62 Å. There is one shorter (2.43 Å) and two longer (3.46 Å) La(1)-Zn(1) bond lengths. Hg(1) is bonded in a 2-coordinate geometry to three equivalent La(1) and one Zn(1) atom. The Hg(1)-Zn(1) bond length is 2.24 Å. Zn(1) is bonded in a 3-coordinate geometry to three equivalent La(1) and two equivalent Hg(1) atoms.