data_LaNi2Sn
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   3.32
_cell_length_b   3.32
_cell_length_c   6.82
_cell_angle_alpha   90.0
_cell_angle_beta   90.0
_cell_angle_gamma   90.0
_symmetry_Int_Tables_number   1
_chemical_formula_structural   LaNi2Sn
_chemical_formula_sum   'La1 Ni2 Sn1'
_cell_volume   74.93
_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  La0  1  0.0  0.0  0.41  1.0
  Ni  Ni1  1  0.66  0.66  0.47  1.0
  Ni  Ni2  1  0.66  0.66  0.35  1.0
  Sn  Sn3  1  0.0  0.0  0.0  1.0

data_LaNi2Sn
_symmetry_space_group_name_H-M   Cm
_cell_length_a   4.69
_cell_length_b   4.69
_cell_length_c   6.82
_cell_angle_alpha   90.0
_cell_angle_beta   90.0
_cell_angle_gamma   90.0
_symmetry_Int_Tables_number   8
_chemical_formula_structural   LaNi2Sn
_chemical_formula_sum   'La2 Ni4 Sn2'
_cell_volume   149.87
_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  0.41  1.0
  Ni  Ni1  2  0.16  0.5  0.35  1.0
  Ni  Ni2  2  0.16  0.5  0.47  1.0
  Sn  Sn3  2  0.0  0.0  0.0  1.0

La Ni Ni Sn
LaNi2Sn crystallizes in the monoclinic Cm space group. The structure is zero-dimensional and consists of two LaNi2Sn clusters. La(1) is bonded in a 2-coordinate geometry to one Ni(1), one Ni(2), and one Sn(1) atom. The La(1)-Ni(1) bond length is 1.66 Å. The La(1)-Ni(2) bond length is 1.66 Å. The La(1)-Sn(1) bond length is 2.79 Å. There are two inequivalent Ni sites. In the first Ni site, Ni(1) is bonded in a 2-coordinate geometry to one La(1) and one Ni(2) atom. The Ni(1)-Ni(2) bond length is 0.87 Å. In the second Ni site, Ni(2) is bonded in a 2-coordinate geometry to one La(1) and one Ni(1) atom. Sn(1) is bonded in a 1-coordinate geometry to one La(1) atom.