data_AlCuPt
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   4.79
_cell_length_b   4.79
_cell_length_c   4.79
_cell_angle_alpha   141.98
_cell_angle_beta   141.98
_cell_angle_gamma   54.86
_symmetry_Int_Tables_number   1
_chemical_formula_structural   AlCuPt
_chemical_formula_sum   'Al1 Cu1 Pt1'
_cell_volume   41.53
_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
  Al  Al0  1  0.0  0.0  0.5  1.0
  Cu  Cu1  1  0.0  0.0  0.91  1.0
  Pt  Pt2  1  0.0  0.0  0.61  1.0

data_AlCuPt
_symmetry_space_group_name_H-M   Cm
_cell_length_a   4.42
_cell_length_b   4.42
_cell_length_c   4.79
_cell_angle_alpha   90.0
_cell_angle_beta   117.43
_cell_angle_gamma   90.0
_symmetry_Int_Tables_number   8
_chemical_formula_structural   AlCuPt
_chemical_formula_sum   'Al2 Cu2 Pt2'
_cell_volume   83.06
_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
  Al  Al0  2  0.0  0.5  0.5  1.0
  Cu  Cu1  2  0.41  0.5  0.91  1.0
  Pt  Pt2  2  0.11  0.5  0.61  1.0

Al Cu Pt
Al Cu Pt 0 2 o o o 1 2 o o o 
PtCuAl is alpha Niobium phosphide-derived structured and crystallizes in the monoclinic Cm space group. The structure is zero-dimensional and consists of two PtCuAl clusters. Pt(1) is bonded in a distorted linear geometry to one Cu(1) and one Al(1) atom. The Pt(1)-Cu(1) bond length is 1.42 Å. The Pt(1)-Al(1) bond length is 0.53 Å. Cu(1) is bonded in a single-bond geometry to one Pt(1) atom. Al(1) is bonded in a single-bond geometry to one Pt(1) atom.