data_LiSn2Pt
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   3.34
_cell_length_b   3.34
_cell_length_c   7.45
_cell_angle_alpha   90.0
_cell_angle_beta   90.0
_cell_angle_gamma   90.0
_symmetry_Int_Tables_number   1
_chemical_formula_structural   LiSn2Pt
_chemical_formula_sum   'Li1 Sn2 Pt1'
_cell_volume   83.24
_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
  Li  Li0  1  0.0  0.0  0.0  1.0
  Sn  Sn2  1  0.67  0.67  0.38  1.0
  Sn  Sn3  1  0.67  0.67  0.07  1.0
  Pt  Pt1  1  0.0  0.0  0.72  1.0

data_LiSn2Pt
_symmetry_space_group_name_H-M   Cm
_cell_length_a   4.73
_cell_length_b   4.73
_cell_length_c   7.45
_cell_angle_alpha   90.0
_cell_angle_beta   90.0
_cell_angle_gamma   90.0
_symmetry_Int_Tables_number   8
_chemical_formula_structural   LiSn2Pt
_chemical_formula_sum   'Li2 Sn4 Pt2'
_cell_volume   166.49
_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
  Li  Li0  2  0.0  0.0  0.0  1.0
  Sn  Sn1  2  0.17  0.5  0.07  1.0
  Sn  Sn2  2  0.17  0.5  0.38  1.0
  Pt  Pt3  2  0.0  0.0  0.72  1.0

Li Sn Sn Pt
LiPtSn2 crystallizes in the monoclinic Cm space group. Li(1) is bonded in a 4-coordinate geometry to one Pt(1) and three equivalent Sn(2) atoms. The Li(1)-Pt(1) bond length is 2.05 Å. There is one shorter (1.63 Å) and two longer (2.55 Å) Li(1)-Sn(2) bond lengths. Pt(1) is bonded in a single-bond geometry to one Li(1) and one Sn(1) atom. The Pt(1)-Sn(1) bond length is 2.99 Å. There are two inequivalent Sn sites. In the first Sn site, Sn(1) is bonded in a distorted bent 150 degrees geometry to one Pt(1) and one Sn(2) atom. The Sn(1)-Sn(2) bond length is 2.34 Å. In the second Sn site, Sn(2) is bonded in a distorted single-bond geometry to three equivalent Li(1) and one Sn(1) atom.