data_SrAlPb2
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   3.59
_cell_length_b   5.19
_cell_length_c   6.43
_cell_angle_alpha   90.0
_cell_angle_beta   92.67
_cell_angle_gamma   90.0
_symmetry_Int_Tables_number   1
_chemical_formula_structural   SrAlPb2
_chemical_formula_sum   'Sr1 Al1 Pb2'
_cell_volume   119.74
_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
  Sr  Sr3  1  0.65  0.0  0.21  1.0
  Al  Al0  1  0.0  0.0  0.0  1.0
  Pb  Pb1  1  0.17  0.59  0.54  1.0
  Pb  Pb2  1  0.13  0.59  0.88  1.0

data_SrAlPb2
_symmetry_space_group_name_H-M   P1
_cell_length_a   3.59
_cell_length_b   5.19
_cell_length_c   6.43
_cell_angle_alpha   90.0
_cell_angle_beta   92.67
_cell_angle_gamma   90.0
_symmetry_Int_Tables_number   1
_chemical_formula_structural   SrAlPb2
_chemical_formula_sum   'Sr1 Al1 Pb2'
_cell_volume   119.74
_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
  Sr  Sr0  1  0.65  0.0  0.21  1.0
  Al  Al1  1  0.0  0.0  0.0  1.0
  Pb  Pb2  1  0.13  0.59  0.88  1.0
  Pb  Pb3  1  0.17  0.59  0.54  1.0

Sr Al Pb Pb
Sr Al Pb Pb 0 1 + o o 1 3 o - - 2 3 o o o 
SrAlPb2 crystallizes in the triclinic P1 space group. Sr(1) is bonded in a 1-coordinate geometry to two equivalent Al(1) and two equivalent Pb(1) atoms. There is one shorter (1.91 Å) and one longer (2.64 Å) Sr(1)-Al(1) bond length. There is one shorter (3.47 Å) and one longer (3.50 Å) Sr(1)-Pb(1) bond length. Al(1) is bonded in a 4-coordinate geometry to two equivalent Sr(1) and two equivalent Pb(2) atoms. There is one shorter (2.29 Å) and one longer (3.21 Å) Al(1)-Pb(2) bond length. There are two inequivalent Pb sites. In the first Pb site, Pb(1) is bonded in a 3-coordinate geometry to two equivalent Sr(1) and one Pb(2) atom. The Pb(1)-Pb(2) bond length is 2.20 Å. In the second Pb site, Pb(2) is bonded in a 1-coordinate geometry to two equivalent Al(1) and one Pb(1) atom.