data_Ta2SnPt
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   3.34
_cell_length_b   3.34
_cell_length_c   6.63
_cell_angle_alpha   90.0
_cell_angle_beta   90.0
_cell_angle_gamma   90.0
_symmetry_Int_Tables_number   1
_chemical_formula_structural   Ta2SnPt
_chemical_formula_sum   'Ta2 Sn1 Pt1'
_cell_volume   73.78
_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
  Ta  Ta2  1  0.67  0.67  0.79  1.0
  Ta  Ta3  1  0.67  0.67  0.84  1.0
  Sn  Sn1  1  0.0  0.0  0.0  1.0
  Pt  Pt0  1  0.0  0.0  0.32  1.0

data_Ta2SnPt
_symmetry_space_group_name_H-M   Cm
_cell_length_a   4.72
_cell_length_b   4.72
_cell_length_c   6.63
_cell_angle_alpha   90.0
_cell_angle_beta   90.0
_cell_angle_gamma   90.0
_symmetry_Int_Tables_number   8
_chemical_formula_structural   Ta2SnPt
_chemical_formula_sum   'Ta4 Sn2 Pt2'
_cell_volume   147.56
_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
  Ta  Ta0  2  0.17  0.5  0.79  1.0
  Ta  Ta1  2  0.17  0.5  0.84  1.0
  Sn  Sn2  2  0.0  0.0  0.0  1.0
  Pt  Pt3  2  0.0  0.0  0.32  1.0

Ta Ta Sn Pt
Ta2PtSn crystallizes in the monoclinic Cm space group. The structure is zero-dimensional and consists of two Ta2PtSn clusters. There are two inequivalent Ta sites. In the first Ta site, Ta(1) is bonded in a single-bond geometry to one Ta(2) atom. The Ta(1)-Ta(2) bond length is 0.38 Å. In the second Ta site, Ta(2) is bonded in a distorted bent 120 degrees geometry to one Ta(1) and one Sn(1) atom. The Ta(2)-Sn(1) bond length is 1.88 Å. Pt(1) is bonded in a distorted single-bond geometry to one Sn(1) atom. The Pt(1)-Sn(1) bond length is 2.09 Å. Sn(1) is bonded in a 2-coordinate geometry to one Ta(2) and one Pt(1) atom.