data_BeAlPt2
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   4.38
_cell_length_b   4.38
_cell_length_c   2.82
_cell_angle_alpha   90.0
_cell_angle_beta   90.0
_cell_angle_gamma   100.37
_symmetry_Int_Tables_number   1
_chemical_formula_structural   BeAlPt2
_chemical_formula_sum   'Be1 Al1 Pt2'
_cell_volume   53.27
_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
  Be  Be1  1  0.0  0.0  0.0  1.0
  Al  Al0  1  0.81  0.0  0.0  1.0
  Pt  Pt2  1  0.4  0.68  0.41  1.0
  Pt  Pt3  1  0.4  0.32  0.41  1.0

data_BeAlPt2
_symmetry_space_group_name_H-M   P1
_cell_length_a   2.82
_cell_length_b   4.38
_cell_length_c   4.38
_cell_angle_alpha   100.37
_cell_angle_beta   90.0
_cell_angle_gamma   90.0
_symmetry_Int_Tables_number   1
_chemical_formula_structural   BeAlPt2
_chemical_formula_sum   'Be1 Al1 Pt2'
_cell_volume   53.27
_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
  Be  Be0  1  0.0  0.0  0.0  1.0
  Al  Al1  1  0.0  0.81  0.0  1.0
  Pt  Pt2  1  0.41  0.4  0.32  1.0
  Pt  Pt3  1  0.41  0.4  0.68  1.0

Be Al Pt Pt
Be Al Pt Pt 0 1 - o o 2 3 o o o 
BePt2Al crystallizes in the triclinic P1 space group. Be(1) is bonded in a 1-coordinate geometry to one Pt(1), two equivalent Pt(2), and one Al(1) atom. The Be(1)-Pt(1) bond length is 2.70 Å. There is one shorter (2.35 Å) and one longer (2.63 Å) Be(1)-Pt(2) bond length. The Be(1)-Al(1) bond length is 0.85 Å. There are two inequivalent Pt sites. In the first Pt site, Pt(1) is bonded in a 4-coordinate geometry to one Be(1), one Pt(2), and two equivalent Al(1) atoms. The Pt(1)-Pt(2) bond length is 1.61 Å. There is one shorter (2.35 Å) and one longer (2.63 Å) Pt(1)-Al(1) bond length. In the second Pt site, Pt(2) is bonded in a 5-coordinate geometry to two equivalent Be(1), one Pt(1), and two equivalent Al(1) atoms. There is one shorter (2.70 Å) and one longer (2.95 Å) Pt(2)-Al(1) bond length. Al(1) is bonded in a 1-coordinate geometry to one Be(1), two equivalent Pt(1), and two equivalent Pt(2) atoms.