data_ScBePb2
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   5.74
_cell_length_b   5.74
_cell_length_c   3.39
_cell_angle_alpha   102.91
_cell_angle_beta   102.91
_cell_angle_gamma   111.93
_symmetry_Int_Tables_number   1
_chemical_formula_structural   ScBePb2
_chemical_formula_sum   'Sc1 Be1 Pb2'
_cell_volume   95.03
_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
  Sc  Sc3  1  0.22  0.0  0.0  1.0
  Be  Be0  1  0.0  0.0  0.0  1.0
  Pb  Pb1  1  0.93  0.38  0.55  1.0
  Pb  Pb2  1  0.93  0.62  0.55  1.0

data_ScBePb2
_symmetry_space_group_name_H-M   P1
_cell_length_a   3.39
_cell_length_b   5.74
_cell_length_c   5.74
_cell_angle_alpha   111.93
_cell_angle_beta   102.91
_cell_angle_gamma   102.91
_symmetry_Int_Tables_number   1
_chemical_formula_structural   ScBePb2
_chemical_formula_sum   'Sc1 Be1 Pb2'
_cell_volume   95.03
_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
  Sc  Sc0  1  0.0  0.22  0.0  1.0
  Be  Be1  1  0.0  0.0  0.0  1.0
  Pb  Pb2  1  0.55  0.93  0.38  1.0
  Pb  Pb3  1  0.55  0.93  0.62  1.0

Sc Be Pb Pb
BeScPb2 crystallizes in the triclinic P1 space group. Be(1) is bonded in a distorted single-bond geometry to one Sc(1), one Pb(2), and two equivalent Pb(1) atoms. The Be(1)-Sc(1) bond length is 1.24 Å. The Be(1)-Pb(2) bond length is 2.20 Å. There is one shorter (2.75 Å) and one longer (3.01 Å) Be(1)-Pb(1) bond length. Sc(1) is bonded in a 2-coordinate geometry to one Be(1), one Pb(1), and one Pb(2) atom. The Sc(1)-Pb(1) bond length is 3.64 Å. The Sc(1)-Pb(2) bond length is 2.12 Å. There are two inequivalent Pb sites. In the first Pb site, Pb(1) is bonded in a 4-coordinate geometry to two equivalent Be(1), one Sc(1), and one Pb(2) atom. The Pb(1)-Pb(2) bond length is 1.37 Å. In the second Pb site, Pb(2) is bonded in a 3-coordinate geometry to one Be(1), one Sc(1), and one Pb(1) atom.