data_SrSn2Pt
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   3.69
_cell_length_b   3.69
_cell_length_c   7.58
_cell_angle_alpha   90.0
_cell_angle_beta   90.0
_cell_angle_gamma   90.0
_symmetry_Int_Tables_number   1
_chemical_formula_structural   SrSn2Pt
_chemical_formula_sum   'Sr1 Sn2 Pt1'
_cell_volume   103.45
_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
  Sr  Sr3  1  0.0  0.0  0.97  1.0
  Sn  Sn1  1  0.0  0.0  0.22  1.0
  Sn  Sn2  1  0.85  0.85  0.58  1.0
  Pt  Pt0  1  0.85  0.85  0.2  1.0

data_SrSn2Pt
_symmetry_space_group_name_H-M   Cm
_cell_length_a   5.22
_cell_length_b   5.22
_cell_length_c   7.58
_cell_angle_alpha   90.0
_cell_angle_beta   90.0
_cell_angle_gamma   90.0
_symmetry_Int_Tables_number   8
_chemical_formula_structural   SrSn2Pt
_chemical_formula_sum   'Sr2 Sn4 Pt2'
_cell_volume   206.9
_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
  Sr  Sr0  2  0.0  0.0  0.97  1.0
  Sn  Sn1  2  0.0  0.0  0.22  1.0
  Sn  Sn2  2  0.35  0.5  0.58  1.0
  Pt  Pt3  2  0.35  0.5  0.2  1.0

Sr Sn Sn Pt
SrPtSn2 crystallizes in the monoclinic Cm space group. The structure is zero-dimensional and consists of two SrPtSn2 clusters. Sr(1) is bonded in a 3-coordinate geometry to one Pt(1), one Sn(1), and one Sn(2) atom. The Sr(1)-Pt(1) bond length is 1.91 Å. The Sr(1)-Sn(1) bond length is 1.91 Å. The Sr(1)-Sn(2) bond length is 3.07 Å. Pt(1) is bonded in a distorted single-bond geometry to one Sr(1) and one Sn(1) atom. The Pt(1)-Sn(1) bond length is 0.82 Å. There are two inequivalent Sn sites. In the first Sn site, Sn(1) is bonded in a distorted single-bond geometry to one Sr(1) and one Pt(1) atom. In the second Sn site, Sn(2) is bonded in a distorted single-bond geometry to one Sr(1) atom.