data_LaZnCl2
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   3.58
_cell_length_b   3.58
_cell_length_c   9.27
_cell_angle_alpha   90.0
_cell_angle_beta   90.0
_cell_angle_gamma   90.0
_symmetry_Int_Tables_number   1
_chemical_formula_structural   LaZnCl2
_chemical_formula_sum   'La1 Zn1 Cl2'
_cell_volume   118.59
_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  0.0  0.0  0.64  1.0
  Zn  Zn3  1  0.0  0.0  0.0  1.0
  Cl  Cl0  1  0.79  0.79  0.01  1.0
  Cl  Cl1  1  0.79  0.79  0.26  1.0

data_LaZnCl2
_symmetry_space_group_name_H-M   Cm
_cell_length_a   5.06
_cell_length_b   5.06
_cell_length_c   9.27
_cell_angle_alpha   90.0
_cell_angle_beta   90.0
_cell_angle_gamma   90.0
_symmetry_Int_Tables_number   8
_chemical_formula_structural   LaZnCl2
_chemical_formula_sum   'La2 Zn2 Cl4'
_cell_volume   237.18
_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  0.0  0.0  0.64  1.0
  Zn  Zn1  2  0.0  0.0  0.0  1.0
  Cl  Cl2  2  0.29  0.5  0.01  1.0
  Cl  Cl3  2  0.29  0.5  0.26  1.0

La Zn Cl Cl
La Zn Cl Cl 0 3 - - o 0 2 - - + 0 0 + o o 0 0 o + o 0 1 o o + 1 2 - - o 1 3 - - o 2 3 o o o 
LaZnCl2 crystallizes in the monoclinic Cm space group. La(1) is bonded in a 7-coordinate geometry to four equivalent La(1), one Zn(1), one Cl(1), and one Cl(2) atom. All La(1)-La(1) bond lengths are 3.58 Å. The La(1)-Zn(1) bond length is 3.38 Å. The La(1)-Cl(1) bond length is 3.64 Å. The La(1)-Cl(2) bond length is 3.64 Å. Zn(1) is bonded in a single-bond geometry to one La(1), one Cl(1), and one Cl(2) atom. The Zn(1)-Cl(1) bond length is 1.08 Å. The Zn(1)-Cl(2) bond length is 2.64 Å. There are two inequivalent Cl sites. In the first Cl site, Cl(1) is bonded in a single-bond geometry to one La(1), one Zn(1), and one Cl(2) atom. The Cl(1)-Cl(2) bond length is 2.31 Å. In the second Cl site, Cl(2) is bonded in a 3-coordinate geometry to one La(1), one Zn(1), and one Cl(1) atom.