The structure described by Sr2Pb3 crystallizes in the tetragonal P4/mbm space group. Sr(1) is bonded in a 10-coordinate geometry to four equivalent Pb(2) and six equivalent Pb(1) atoms. There are two inequivalent Pb sites. In the first Pb site, Pb(1) is bonded in a 9-coordinate geometry to six equivalent Sr(1), one Pb(1), and two equivalent Pb(2) atoms. In the second Pb site, Pb(2) is bonded to eight equivalent Sr(1) and four equivalent Pb(1) atoms to form a mixture of face and corner-sharing PbSr8Pb4 cuboctahedra. is represented by the CIF file [CIF]
data_Sr2Pb3
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   8.350
_cell_length_b   8.350
_cell_length_c   5.001
_cell_angle_alpha   90.000
_cell_angle_beta   90.000
_cell_angle_gamma   90.000
_symmetry_Int_Tables_number   1
_cell_volume   348.670
_cell_formula_units_Z   2
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  0.673  0.173  0.000  1.0
  Sr  Sr1  1  0.173  0.327  0.000  1.0
  Sr  Sr2  1  0.827  0.673  0.000  1.0
  Sr  Sr3  1  0.327  0.827  0.000  1.0
  Pb  Pb4  1  0.129  0.629  0.500  1.0
  Pb  Pb5  1  0.871  0.371  0.500  1.0
  Pb  Pb6  1  0.629  0.871  0.500  1.0
  Pb  Pb7  1  0.000  0.000  0.500  1.0
  Pb  Pb8  1  0.371  0.129  0.500  1.0
  Pb  Pb9  1  0.500  0.500  0.500  1.0
[/CIF]
.
The structure described by Sr2Pb3 crystallizes in the tetragonal P4/mbm space group. Sr(1) is bonded in a 10-coordinate geometry to four equivalent Pb(2) and six equivalent Pb(1) atoms. There are two inequivalent Pb sites. In the first Pb site, Pb(1) is bonded in a 9-coordinate geometry to six equivalent Sr(1), one Pb(1), and two equivalent Pb(2) atoms. In the second Pb site, Pb(2) is bonded to eight equivalent Sr(1) and four equivalent Pb(1) atoms to form a mixture of face and corner-sharing PbSr8Pb4 cuboctahedra. is represented by the CIF file [CIF]
data_Sr2Pb3
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   8.350
_cell_length_b   8.350
_cell_length_c   5.001
_cell_angle_alpha   90.000
_cell_angle_beta   90.000
_cell_angle_gamma   90.000
_symmetry_Int_Tables_number   1
_cell_volume   348.670
_cell_formula_units_Z   2
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  0.673  0.173  0.000  1.0
  Sr  Sr1  1  0.173  0.327  0.000  1.0
  Sr  Sr2  1  0.827  0.673  0.000  1.0
  Sr  Sr3  1  0.327  0.827  0.000  1.0
  Pb  Pb4  1  0.129  0.629  0.500  1.0
  Pb  Pb5  1  0.871  0.371  0.500  1.0
  Pb  Pb6  1  0.629  0.871  0.500  1.0
  Pb  Pb7  1  0.000  0.000  0.500  1.0
  Pb  Pb8  1  0.371  0.129  0.500  1.0
  Pb  Pb9  1  0.500  0.500  0.500  1.0
[/CIF]
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