data_TaAg2Pt
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   9.71
_cell_length_b   9.71
_cell_length_c   9.71
_cell_angle_alpha   17.15
_cell_angle_beta   17.15
_cell_angle_gamma   17.15
_symmetry_Int_Tables_number   1
_chemical_formula_structural   TaAg2Pt
_chemical_formula_sum   'Ta1 Ag2 Pt1'
_cell_volume   69.37
_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  Ta3  1  0.0  0.0  0.06  1.0
  Ag  Ag0  1  0.0  0.0  0.67  1.0
  Ag  Ag1  1  0.0  0.0  0.55  1.0
  Pt  Pt2  1  0.0  0.0  0.43  1.0

data_TaAg2Pt
_symmetry_space_group_name_H-M   Cm
_cell_length_a   5.01
_cell_length_b   2.89
_cell_length_c   9.71
_cell_angle_alpha   90.0
_cell_angle_beta   99.91
_cell_angle_gamma   90.0
_symmetry_Int_Tables_number   8
_chemical_formula_structural   TaAg2Pt
_chemical_formula_sum   'Ta2 Ag4 Pt2'
_cell_volume   138.74
_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  0.0  0.0  0.94  1.0
  Ag  Ag1  2  -0.0  0.0  0.33  1.0
  Ag  Ag2  2  -0.0  0.0  0.45  1.0
  Pt  Pt3  2  0.0  0.0  0.57  1.0

Ta Ag Ag Pt
TaPtAg2 crystallizes in the monoclinic Cm space group. Ta(1) is bonded to six equivalent Ta(1), one Pt(1), and one Ag(1) atom to form a mixture of corner and edge-sharing TaTa6AgPt hexagonal bipyramids. All Ta(1)-Ta(1) bond lengths are 2.89 Å. The Ta(1)-Pt(1) bond length is 3.62 Å. The Ta(1)-Ag(1) bond length is 3.75 Å. Pt(1) is bonded in a single-bond geometry to one Ta(1) and one Ag(2) atom. The Pt(1)-Ag(2) bond length is 1.13 Å. There are two inequivalent Ag sites. In the first Ag site, Ag(1) is bonded in a single-bond geometry to one Ta(1) and one Ag(2) atom. The Ag(1)-Ag(2) bond length is 1.20 Å. In the second Ag site, Ag(2) is bonded in a distorted linear geometry to one Pt(1) and one Ag(1) atom.