data_AlAsPt2
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   4.63
_cell_length_b   4.63
_cell_length_c   2.97
_cell_angle_alpha   90.0
_cell_angle_beta   90.0
_cell_angle_gamma   91.82
_symmetry_Int_Tables_number   1
_chemical_formula_structural   AlAsPt2
_chemical_formula_sum   'Al1 As1 Pt2'
_cell_volume   63.74
_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  0.0  1.0
  As  As1  1  0.22  0.0  0.0  1.0
  Pt  Pt2  1  0.61  0.34  0.49  1.0
  Pt  Pt3  1  0.61  0.66  0.49  1.0

data_AlAsPt2
_symmetry_space_group_name_H-M   Pmm2
_cell_length_a   2.97
_cell_length_b   4.63
_cell_length_c   4.63
_cell_angle_alpha   90.0
_cell_angle_beta   90.0
_cell_angle_gamma   90.0
_symmetry_Int_Tables_number   25
_chemical_formula_structural   AlAsPt2
_chemical_formula_sum   'Al1 As1 Pt2'
_cell_volume   63.77
_cell_formula_units_Z   1
loop_
 _symmetry_equiv_pos_site_id
 _symmetry_equiv_pos_as_xyz
  1  'x, y, z'
  2  '-x, -y, z'
  3  '-x, y, z'
  4  '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  0.0  1.0
  As  As1  1  0.0  0.0  0.78  1.0
  Pt  Pt2  2  0.5  0.34  0.39  1.0

Al As Pt Pt
Pt2AlAs crystallizes in the monoclinic Pm space group. Pt(1) is bonded in a 5-coordinate geometry to one Pt(1), two equivalent Al(1), and two equivalent As(1) atoms. The Pt(1)-Pt(1) bond length is 1.51 Å. There is one shorter (2.79 Å) and one longer (2.83 Å) Pt(1)-Al(1) bond length. There is one shorter (2.79 Å) and one longer (2.83 Å) Pt(1)-As(1) bond length. Al(1) is bonded in a single-bond geometry to four equivalent Pt(1) and one As(1) atom. The Al(1)-As(1) bond length is 1.03 Å. As(1) is bonded in a single-bond geometry to four equivalent Pt(1) and one Al(1) atom.