data_CuAg2Pt
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   5.38
_cell_length_b   5.38
_cell_length_c   5.38
_cell_angle_alpha   148.15
_cell_angle_beta   128.44
_cell_angle_gamma   61.89
_symmetry_Int_Tables_number   1
_chemical_formula_structural   CuAg2Pt
_chemical_formula_sum   'Cu1 Ag2 Pt1'
_cell_volume   63.79
_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
  Cu  Cu2  1  0.0  0.0  0.67  1.0
  Ag  Ag0  1  0.0  0.0  0.2  1.0
  Ag  Ag1  1  0.48  0.0  0.45  1.0
  Pt  Pt3  1  0.0  0.34  0.14  1.0

data_CuAg2Pt
_symmetry_space_group_name_H-M   P1
_cell_length_a   2.95
_cell_length_b   4.68
_cell_length_c   5.38
_cell_angle_alpha   115.78
_cell_angle_beta   105.92
_cell_angle_gamma   90.0
_symmetry_Int_Tables_number   1
_chemical_formula_structural   CuAg2Pt
_chemical_formula_sum   'Cu1 Ag2 Pt1'
_cell_volume   63.79
_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
  Cu  Cu0  1  0.0  0.67  0.67  1.0
  Ag  Ag1  1  0.0  0.2  0.2  1.0
  Ag  Ag2  1  0.0  0.45  0.97  1.0
  Pt  Pt3  1  0.66  0.8  0.8  1.0

Cu Ag Ag Pt
Cu Ag Ag Pt 0 3 o o + 0 2 - o o 1 3 o o o 1 2 o o o 2 3 + o + 
PtAg2Cu crystallizes in the triclinic P1 space group. Pt(1) is bonded in a 4-coordinate geometry to one Ag(1), one Ag(2), and two equivalent Cu(1) atoms. The Pt(1)-Ag(1) bond length is 2.12 Å. The Pt(1)-Ag(2) bond length is 2.32 Å. There is one shorter (1.40 Å) and one longer (1.88 Å) Pt(1)-Cu(1) bond length. There are two inequivalent Ag sites. In the first Ag site, Ag(1) is bonded in a 3-coordinate geometry to one Pt(1), one Ag(2), and one Cu(1) atom. The Ag(1)-Ag(2) bond length is 2.03 Å. The Ag(1)-Cu(1) bond length is 2.48 Å. In the second Ag site, Ag(2) is bonded in a 3-coordinate geometry to one Pt(1), one Ag(1), and one Cu(1) atom. The Ag(2)-Cu(1) bond length is 2.29 Å. Cu(1) is bonded in a distorted bent 120 degrees geometry to two equivalent Pt(1), one Ag(1), and one Ag(2) atom.