The material structure described by Cd3Pb3Si2O10 crystallizes in the trigonal P3m1 space group. Cd(1) is bonded to one O(1), one O(2), one O(3), one O(4), and two equivalent O(6) atoms to form distorted CdO6 octahedra that share corners with two equivalent Cd(1)O6 octahedra, corners with two equivalent Pb(1)O6 pentagonal pyramids, corners with two equivalent Si(1)O4 tetrahedra, corners with two equivalent Si(2)O4 tetrahedra, edges with four equivalent Pb(1)O6 pentagonal pyramids, and faces with two equivalent Cd(1)O6 octahedra. The corner-sharing octahedral tilt angles are 79°. Pb(1) is bonded to one O(2), one O(4), one O(5), one O(6), and two equivalent O(1) atoms to form distorted PbO6 pentagonal pyramids that share corners with two equivalent Cd(1)O6 octahedra, corners with two equivalent Pb(1)O6 pentagonal pyramids, corners with two equivalent Si(1)O4 tetrahedra, corners with two equivalent Si(2)O4 tetrahedra, edges with four equivalent Cd(1)O6 octahedra, and faces with two equivalent Pb(1)O6 pentagonal pyramids. The corner-sharing octahedral tilt angles range from 0-2°. There are two inequivalent Si sites. In the first Si site, Si(1) is bonded to one O(3) and three equivalent O(1) atoms to form SiO4 tetrahedra that share corners with six equivalent Cd(1)O6 octahedra and corners with six equivalent Pb(1)O6 pentagonal pyramids. The corner-sharing octahedral tilt angles range from 49-63°. In the second Si site, Si(2) is bonded to one O(5) and three equivalent O(6) atoms to form SiO4 tetrahedra that share corners with six equivalent Cd(1)O6 octahedra and corners with six equivalent Pb(1)O6 pentagonal pyramids. The corner-sharing octahedral tilt angles are 51°. There are six inequivalent O sites. In the first O site, O(1) is bonded in a distorted rectangular see-saw-like geometry to one Cd(1), two equivalent Pb(1), and one Si(1) atom. In the second O site, O(2) is bonded to three equivalent Cd(1) and three equivalent Pb(1) atoms to form OCd3Pb3 octahedra that share corners with three equivalent O(3)Cd3Si tetrahedra and faces with two equivalent O(4)Cd3Pb3 octahedra. In the third O site, O(3) is bonded to three equivalent Cd(1) and one Si(1) atom to form distorted corner-sharing OCd3Si tetrahedra. The corner-sharing octahedral tilt angles range from 8-64°. In the fourth O site, O(4) is bonded to three equivalent Cd(1) and three equivalent Pb(1) atoms to form OCd3Pb3 octahedra that share corners with three equivalent O(3)Cd3Si tetrahedra and faces with two equivalent O(2)Cd3Pb3 octahedra. In the fifth O site, O(5) is bonded in a distorted single-bond geometry to three equivalent Pb(1) and one Si(2) atom. In the sixth O site, O(6) is bonded in a distorted rectangular see-saw-like geometry to two equivalent Cd(1), one Pb(1), and one Si(2) atom. is represented by the CIF card [CIF]
data_Cd3Si2Pb3O10
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   7.405
_cell_length_b   7.405
_cell_length_c   5.794
_cell_angle_alpha   90.000
_cell_angle_beta   90.000
_cell_angle_gamma   120.000
_symmetry_Int_Tables_number   1
_cell_volume   275.166
_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
  Cd  Cd0  1  0.152  0.303  0.996  1.0
  Cd  Cd1  1  0.152  0.848  0.996  1.0
  Cd  Cd2  1  0.697  0.848  0.996  1.0
  Si  Si3  1  0.333  0.667  0.497  1.0
  Si  Si4  1  0.667  0.333  0.022  1.0
  Pb  Pb5  1  0.844  0.687  0.494  1.0
  Pb  Pb6  1  0.844  0.156  0.494  1.0
  Pb  Pb7  1  0.313  0.156  0.494  1.0
  O  O8  1  0.213  0.427  0.391  1.0
  O  O9  1  0.213  0.787  0.391  1.0
  O  O10  1  0.573  0.787  0.391  1.0
  O  O11  1  0.000  0.000  0.747  1.0
  O  O12  1  0.333  0.667  0.789  1.0
  O  O13  1  0.000  0.000  0.231  1.0
  O  O14  1  0.667  0.333  0.303  1.0
  O  O15  1  0.790  0.580  0.932  1.0
  O  O16  1  0.790  0.210  0.932  1.0
  O  O17  1  0.420  0.210  0.932  1.0
[/CIF]
.
The material structure described by Cd3Pb3Si2O10 crystallizes in the trigonal P3m1 space group. Cd(1) is bonded to one O(1), one O(2), one O(3), one O(4), and two equivalent O(6) atoms to form distorted CdO6 octahedra that share corners with two equivalent Cd(1)O6 octahedra, corners with two equivalent Pb(1)O6 pentagonal pyramids, corners with two equivalent Si(1)O4 tetrahedra, corners with two equivalent Si(2)O4 tetrahedra, edges with four equivalent Pb(1)O6 pentagonal pyramids, and faces with two equivalent Cd(1)O6 octahedra. The corner-sharing octahedral tilt angles are 79°. Pb(1) is bonded to one O(2), one O(4), one O(5), one O(6), and two equivalent O(1) atoms to form distorted PbO6 pentagonal pyramids that share corners with two equivalent Cd(1)O6 octahedra, corners with two equivalent Pb(1)O6 pentagonal pyramids, corners with two equivalent Si(1)O4 tetrahedra, corners with two equivalent Si(2)O4 tetrahedra, edges with four equivalent Cd(1)O6 octahedra, and faces with two equivalent Pb(1)O6 pentagonal pyramids. The corner-sharing octahedral tilt angles range from 0-2°. There are two inequivalent Si sites. In the first Si site, Si(1) is bonded to one O(3) and three equivalent O(1) atoms to form SiO4 tetrahedra that share corners with six equivalent Cd(1)O6 octahedra and corners with six equivalent Pb(1)O6 pentagonal pyramids. The corner-sharing octahedral tilt angles range from 49-63°. In the second Si site, Si(2) is bonded to one O(5) and three equivalent O(6) atoms to form SiO4 tetrahedra that share corners with six equivalent Cd(1)O6 octahedra and corners with six equivalent Pb(1)O6 pentagonal pyramids. The corner-sharing octahedral tilt angles are 51°. There are six inequivalent O sites. In the first O site, O(1) is bonded in a distorted rectangular see-saw-like geometry to one Cd(1), two equivalent Pb(1), and one Si(1) atom. In the second O site, O(2) is bonded to three equivalent Cd(1) and three equivalent Pb(1) atoms to form OCd3Pb3 octahedra that share corners with three equivalent O(3)Cd3Si tetrahedra and faces with two equivalent O(4)Cd3Pb3 octahedra. In the third O site, O(3) is bonded to three equivalent Cd(1) and one Si(1) atom to form distorted corner-sharing OCd3Si tetrahedra. The corner-sharing octahedral tilt angles range from 8-64°. In the fourth O site, O(4) is bonded to three equivalent Cd(1) and three equivalent Pb(1) atoms to form OCd3Pb3 octahedra that share corners with three equivalent O(3)Cd3Si tetrahedra and faces with two equivalent O(2)Cd3Pb3 octahedra. In the fifth O site, O(5) is bonded in a distorted single-bond geometry to three equivalent Pb(1) and one Si(2) atom. In the sixth O site, O(6) is bonded in a distorted rectangular see-saw-like geometry to two equivalent Cd(1), one Pb(1), and one Si(2) atom. is represented by the CIF card [CIF]
data_Cd3Si2Pb3O10
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   7.405
_cell_length_b   7.405
_cell_length_c   5.794
_cell_angle_alpha   90.000
_cell_angle_beta   90.000
_cell_angle_gamma   120.000
_symmetry_Int_Tables_number   1
_cell_volume   275.166
_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
  Cd  Cd0  1  0.152  0.303  0.996  1.0
  Cd  Cd1  1  0.152  0.848  0.996  1.0
  Cd  Cd2  1  0.697  0.848  0.996  1.0
  Si  Si3  1  0.333  0.667  0.497  1.0
  Si  Si4  1  0.667  0.333  0.022  1.0
  Pb  Pb5  1  0.844  0.687  0.494  1.0
  Pb  Pb6  1  0.844  0.156  0.494  1.0
  Pb  Pb7  1  0.313  0.156  0.494  1.0
  O  O8  1  0.213  0.427  0.391  1.0
  O  O9  1  0.213  0.787  0.391  1.0
  O  O10  1  0.573  0.787  0.391  1.0
  O  O11  1  0.000  0.000  0.747  1.0
  O  O12  1  0.333  0.667  0.789  1.0
  O  O13  1  0.000  0.000  0.231  1.0
  O  O14  1  0.667  0.333  0.303  1.0
  O  O15  1  0.790  0.580  0.932  1.0
  O  O16  1  0.790  0.210  0.932  1.0
  O  O17  1  0.420  0.210  0.932  1.0
[/CIF]
.