data_CuPt2
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   2.8
_cell_length_b   7.15
_cell_length_c   4.25
_cell_angle_alpha   90.0
_cell_angle_beta   90.0
_cell_angle_gamma   90.0
_symmetry_Int_Tables_number   1
_chemical_formula_structural   CuPt2
_chemical_formula_sum   'Cu2 Pt4'
_cell_volume   85.25
_cell_formula_units_Z   2
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  0.0  0.0  1.0
  Cu  Cu1  1  0.4  0.58  0.13  1.0
  Pt  Pt2  1  0.66  0.39  0.0  1.0
  Pt  Pt3  1  0.74  0.96  0.13  1.0
  Pt  Pt4  1  0.06  0.19  0.13  1.0
  Pt  Pt5  1  0.15  0.76  0.0  1.0

data_CuPt2
_symmetry_space_group_name_H-M   P1
_cell_length_a   2.8
_cell_length_b   4.25
_cell_length_c   7.15
_cell_angle_alpha   90.0
_cell_angle_beta   90.0
_cell_angle_gamma   90.0
_symmetry_Int_Tables_number   1
_chemical_formula_structural   CuPt2
_chemical_formula_sum   'Cu2 Pt4'
_cell_volume   85.25
_cell_formula_units_Z   2
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  0.0  0.0  1.0
  Cu  Cu1  1  0.6  0.87  0.42  1.0
  Pt  Pt2  1  0.26  0.87  0.04  1.0
  Pt  Pt3  1  0.34  0.0  0.61  1.0
  Pt  Pt4  1  0.85  0.0  0.24  1.0
  Pt  Pt5  1  0.94  0.87  0.81  1.0

Cu Cu Pt Pt Pt Pt
Pt2Cu crystallizes in the triclinic P1 space group. The structure is zero-dimensional and consists of one Pt2Cu cluster. There are four inequivalent Pt sites. In the first Pt site, Pt(1) is bonded in a distorted single-bond geometry to one Cu(2) atom. The Pt(1)-Cu(2) bond length is 1.61 Å. In the second Pt site, Pt(2) is bonded in a single-bond geometry to one Cu(1) atom. The Pt(2)-Cu(1) bond length is 0.93 Å. In the third Pt site, Pt(3) is bonded in a distorted single-bond geometry to one Cu(1) atom. The Pt(3)-Cu(1) bond length is 1.45 Å. In the fourth Pt site, Pt(4) is bonded in a 2-coordinate geometry to one Cu(1) and one Cu(2) atom. The Pt(4)-Cu(1) bond length is 1.74 Å. The Pt(4)-Cu(2) bond length is 1.61 Å. There are two inequivalent Cu sites. In the first Cu site, Cu(1) is bonded in a 1-coordinate geometry to one Pt(2), one Pt(3), and one Pt(4) atom. In the second Cu site, Cu(2) is bonded in a distorted bent 150 degrees geometry to one Pt(1) and one Pt(4) atom.