data_La2AgSn
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   3.8
_cell_length_b   3.8
_cell_length_c   8.1
_cell_angle_alpha   90.0
_cell_angle_beta   90.0
_cell_angle_gamma   90.0
_symmetry_Int_Tables_number   1
_chemical_formula_structural   La2AgSn
_chemical_formula_sum   'La2 Ag1 Sn1'
_cell_volume   116.99
_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  La1  1  0.9  0.9  0.96  1.0
  La  La2  1  0.9  0.9  0.14  1.0
  Ag  Ag0  1  0.0  0.0  0.0  1.0
  Sn  Sn3  1  0.0  0.0  0.05  1.0

data_La2AgSn
_symmetry_space_group_name_H-M   Cm
_cell_length_a   5.38
_cell_length_b   5.38
_cell_length_c   8.1
_cell_angle_alpha   90.0
_cell_angle_beta   90.0
_cell_angle_gamma   90.0
_symmetry_Int_Tables_number   8
_chemical_formula_structural   La2AgSn
_chemical_formula_sum   'La4 Ag2 Sn2'
_cell_volume   233.98
_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  0.4  0.5  0.14  1.0
  La  La1  2  0.4  0.5  0.96  1.0
  Ag  Ag2  2  0.0  0.0  0.0  1.0
  Sn  Sn3  2  0.0  0.0  0.05  1.0

La La Ag Sn
La La Ag Sn 0 2 + + + 1 3 + + o 2 3 o o o 
La2AgSn crystallizes in the monoclinic Cm space group. The structure is zero-dimensional and consists of two La2AgSn clusters. There are two inequivalent La sites. In the first La site, La(1) is bonded in a single-bond geometry to one Ag(1) atom. The La(1)-Ag(1) bond length is 0.64 Å. In the second La site, La(2) is bonded in a single-bond geometry to one Sn(1) atom. The La(2)-Sn(1) bond length is 0.92 Å. Ag(1) is bonded in a bent 120 degrees geometry to one La(1) and one Sn(1) atom. The Ag(1)-Sn(1) bond length is 0.40 Å. Sn(1) is bonded in a bent 150 degrees geometry to one La(2) and one Ag(1) atom.