The structure described by Pb2SnO4 crystallizes in the tetragonal P4_2/mbc space group. Pb(1) is bonded in a 3-coordinate geometry to one O(1) and two equivalent O(2) atoms. Sn(1) is bonded to two equivalent O(2) and four equivalent O(1) atoms to form edge-sharing SnO6 octahedra. There are two inequivalent O sites. In the first O site, O(2) is bonded in a trigonal planar geometry to two equivalent Pb(1) and one Sn(1) atom. In the second O site, O(1) is bonded in a distorted trigonal non-coplanar geometry to one Pb(1) and two equivalent Sn(1) atoms. is represented by the CIF file [CIF]
data_Sn(PbO2)2
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   8.802
_cell_length_b   8.802
_cell_length_c   6.358
_cell_angle_alpha   90.000
_cell_angle_beta   90.000
_cell_angle_gamma   90.000
_symmetry_Int_Tables_number   1
_cell_volume   492.613
_cell_formula_units_Z   4
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
  Sn  Sn0  1  0.000  0.500  0.750  1.0
  Sn  Sn1  1  0.500  0.000  0.250  1.0
  Sn  Sn2  1  0.000  0.500  0.250  1.0
  Sn  Sn3  1  0.500  0.000  0.750  1.0
  Pb  Pb4  1  0.358  0.661  0.000  1.0
  Pb  Pb5  1  0.642  0.339  0.000  1.0
  Pb  Pb6  1  0.142  0.161  0.000  1.0
  Pb  Pb7  1  0.858  0.839  0.000  1.0
  Pb  Pb8  1  0.839  0.142  0.500  1.0
  Pb  Pb9  1  0.161  0.858  0.500  1.0
  Pb  Pb10  1  0.661  0.642  0.500  1.0
  Pb  Pb11  1  0.339  0.358  0.500  1.0
  O  O12  1  0.376  0.096  0.500  1.0
  O  O13  1  0.624  0.904  0.500  1.0
  O  O14  1  0.124  0.596  0.500  1.0
  O  O15  1  0.876  0.404  0.500  1.0
  O  O16  1  0.404  0.124  0.000  1.0
  O  O17  1  0.596  0.876  0.000  1.0
  O  O18  1  0.096  0.624  0.000  1.0
  O  O19  1  0.904  0.376  0.000  1.0
  O  O20  1  0.165  0.335  0.750  1.0
  O  O21  1  0.835  0.665  0.750  1.0
  O  O22  1  0.335  0.835  0.250  1.0
  O  O23  1  0.665  0.165  0.250  1.0
  O  O24  1  0.335  0.835  0.750  1.0
  O  O25  1  0.665  0.165  0.750  1.0
  O  O26  1  0.165  0.335  0.250  1.0
  O  O27  1  0.835  0.665  0.250  1.0
[/CIF]
.
The structure described by Pb2SnO4 crystallizes in the tetragonal P4_2/mbc space group. Pb(1) is bonded in a 3-coordinate geometry to one O(1) and two equivalent O(2) atoms. Sn(1) is bonded to two equivalent O(2) and four equivalent O(1) atoms to form edge-sharing SnO6 octahedra. There are two inequivalent O sites. In the first O site, O(2) is bonded in a trigonal planar geometry to two equivalent Pb(1) and one Sn(1) atom. In the second O site, O(1) is bonded in a distorted trigonal non-coplanar geometry to one Pb(1) and two equivalent Sn(1) atoms. is represented by the CIF file [CIF]
data_Sn(PbO2)2
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   8.802
_cell_length_b   8.802
_cell_length_c   6.358
_cell_angle_alpha   90.000
_cell_angle_beta   90.000
_cell_angle_gamma   90.000
_symmetry_Int_Tables_number   1
_cell_volume   492.613
_cell_formula_units_Z   4
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
  Sn  Sn0  1  0.000  0.500  0.750  1.0
  Sn  Sn1  1  0.500  0.000  0.250  1.0
  Sn  Sn2  1  0.000  0.500  0.250  1.0
  Sn  Sn3  1  0.500  0.000  0.750  1.0
  Pb  Pb4  1  0.358  0.661  0.000  1.0
  Pb  Pb5  1  0.642  0.339  0.000  1.0
  Pb  Pb6  1  0.142  0.161  0.000  1.0
  Pb  Pb7  1  0.858  0.839  0.000  1.0
  Pb  Pb8  1  0.839  0.142  0.500  1.0
  Pb  Pb9  1  0.161  0.858  0.500  1.0
  Pb  Pb10  1  0.661  0.642  0.500  1.0
  Pb  Pb11  1  0.339  0.358  0.500  1.0
  O  O12  1  0.376  0.096  0.500  1.0
  O  O13  1  0.624  0.904  0.500  1.0
  O  O14  1  0.124  0.596  0.500  1.0
  O  O15  1  0.876  0.404  0.500  1.0
  O  O16  1  0.404  0.124  0.000  1.0
  O  O17  1  0.596  0.876  0.000  1.0
  O  O18  1  0.096  0.624  0.000  1.0
  O  O19  1  0.904  0.376  0.000  1.0
  O  O20  1  0.165  0.335  0.750  1.0
  O  O21  1  0.835  0.665  0.750  1.0
  O  O22  1  0.335  0.835  0.250  1.0
  O  O23  1  0.665  0.165  0.250  1.0
  O  O24  1  0.335  0.835  0.750  1.0
  O  O25  1  0.665  0.165  0.750  1.0
  O  O26  1  0.165  0.335  0.250  1.0
  O  O27  1  0.835  0.665  0.250  1.0
[/CIF]
.