data_BeAsPb2
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   3.44
_cell_length_b   3.82
_cell_length_c   7.12
_cell_angle_alpha   90.0
_cell_angle_beta   90.0
_cell_angle_gamma   90.0
_symmetry_Int_Tables_number   1
_chemical_formula_structural   BeAsPb2
_chemical_formula_sum   'Be1 As1 Pb2'
_cell_volume   93.38
_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
  As  As0  1  0.0  0.0  0.56  1.0
  Pb  Pb2  1  0.72  0.91  0.68  1.0
  Pb  Pb3  1  0.72  0.91  0.44  1.0

data_BeAsPb2
_symmetry_space_group_name_H-M   P1
_cell_length_a   3.44
_cell_length_b   3.82
_cell_length_c   7.12
_cell_angle_alpha   90.0
_cell_angle_beta   90.0
_cell_angle_gamma   90.0
_symmetry_Int_Tables_number   1
_chemical_formula_structural   BeAsPb2
_chemical_formula_sum   'Be1 As1 Pb2'
_cell_volume   93.38
_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
  As  As1  1  0.0  0.0  0.56  1.0
  Pb  Pb2  1  0.72  0.91  0.44  1.0
  Pb  Pb3  1  0.72  0.91  0.68  1.0

Be As Pb Pb
BePb2As is Indium-like structured and crystallizes in the triclinic P1 space group. The structure is zero-dimensional and consists of one BePb2As cluster. Be(1) is bonded in a single-bond geometry to one Pb(1) atom. The Be(1)-Pb(1) bond length is 2.47 Å. There are two inequivalent Pb sites. In the first Pb site, Pb(1) is bonded in a 2-coordinate geometry to one Be(1) and one As(1) atom. The Pb(1)-As(1) bond length is 1.35 Å. In the second Pb site, Pb(2) is bonded in a distorted single-bond geometry to one As(1) atom. The Pb(2)-As(1) bond length is 1.35 Å. As(1) is bonded in a distorted L-shaped geometry to one Pb(1) and one Pb(2) atom.