data_Ce3SnO8
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   12.71
_cell_length_b   12.71
_cell_length_c   12.71
_cell_angle_alpha   17.24
_cell_angle_beta   17.24
_cell_angle_gamma   17.24
_symmetry_Int_Tables_number   1
_chemical_formula_structural   Ce3SnO8
_chemical_formula_sum   'Ce3 Sn1 O8'
_cell_volume   157.4
_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
  Ce  Ce0  1  0.0  0.0  0.09  1.0
  Ce  Ce1  1  0.0  0.0  0.78  1.0
  Ce  Ce2  1  0.0  0.0  0.47  1.0
  Sn  Sn3  1  0.0  0.0  0.0  1.0
  O  O4  1  0.0  0.0  0.07  1.0
  O  O5  1  0.0  0.0  0.35  1.0
  O  O6  1  0.0  0.0  0.7  1.0
  O  O7  1  0.0  0.0  0.37  1.0
  O  O8  1  0.0  0.0  0.18  1.0
  O  O9  1  0.0  0.0  0.85  1.0
  O  O10  1  0.0  0.0  0.2  1.0
  O  O11  1  0.0  0.0  0.49  1.0

data_Ce3SnO8
_symmetry_space_group_name_H-M   Cm
_cell_length_a   6.6
_cell_length_b   3.81
_cell_length_c   12.71
_cell_angle_alpha   90.0
_cell_angle_beta   99.97
_cell_angle_gamma   90.0
_symmetry_Int_Tables_number   8
_chemical_formula_structural   Ce3SnO8
_chemical_formula_sum   'Ce6 Sn2 O16'
_cell_volume   314.81
_cell_formula_units_Z   2
loop_
 _symmetry_equiv_pos_site_id
 _symmetry_equiv_pos_as_xyz
  1  'x, y, z'
  2  'x, -y, z'
  3  'x+1/2, y+1/2, z'
  4  'x+1/2, -y+1/2, 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
  Ce  Ce0  2  0.0  0.0  0.22  1.0
  Ce  Ce1  2  0.0  0.0  0.53  1.0
  Ce  Ce2  2  0.0  0.0  0.91  1.0
  Sn  Sn3  2  0.0  0.0  0.0  1.0
  O  O4  2  0.0  0.0  0.15  1.0
  O  O5  2  0.0  0.0  0.3  1.0
  O  O6  2  0.0  0.0  0.51  1.0
  O  O7  2  0.0  0.0  0.63  1.0
  O  O8  2  0.0  0.0  0.65  1.0
  O  O9  2  0.0  0.0  0.8  1.0
  O  O10  2  0.0  0.0  0.82  1.0
  O  O11  2  0.0  0.0  0.93  1.0

Ce Ce Ce Sn O O O O O O O O
Ce Ce Ce Sn O O O O O O O O 0 4 o o o 1 6 o o o 1 9 o o o 2 11 o o o 3 4 o o o 5 7 o o o 8 10 o o o 
CeO3Ce2SnO5 crystallizes in the monoclinic Cm space group. The structure is zero-dimensional and consists of two Ce2SnO5 clusters and two CeO3 clusters. In each Ce2SnO5 cluster, there are two inequivalent Ce sites. In the first Ce site, Ce(1) is bonded in a linear geometry to one O(1) and one O(5) atom. The Ce(1)-O(1) bond length is 0.25 Å. The Ce(1)-O(5) bond length is 1.18 Å. In the second Ce site, Ce(2) is bonded in a linear geometry to one O(3) and one O(6) atom. The Ce(2)-O(3) bond length is 0.97 Å. The Ce(2)-O(6) bond length is 0.97 Å. Sn(1) is bonded in a linear geometry to one O(1) and one O(6) atom. The Sn(1)-O(1) bond length is 0.84 Å. The Sn(1)-O(6) bond length is 1.86 Å. There are five inequivalent O sites. In the first O site, O(1) is bonded in a linear geometry to one Ce(1) and one Sn(1) atom. In the second O site, O(3) is bonded in a single-bond geometry to one Ce(2) atom. In the third O site, O(5) is bonded in a distorted linear geometry to one Ce(1) and one O(7) atom. The O(5)-O(7) bond length is 0.27 Å. In the fourth O site, O(6) is bonded in a linear geometry to one Ce(2) and one Sn(1) atom. In the fifth O site, O(7) is bonded in a single-bond geometry to one O(5) atom. In each CeO3 cluster, Ce(3) is bonded in a linear geometry to one O(4) and one O(8) atom. The Ce(3)-O(4) bond length is 1.18 Å. The Ce(3)-O(8) bond length is 0.25 Å. There are three inequivalent O sites. In the first O site, O(2) is bonded in a single-bond geometry to one O(4) atom. The O(2)-O(4) bond length is 0.27 Å. In the second O site, O(4) is bonded in a distorted linear geometry to one Ce(3) and one O(2) atom. In the third O site, O(8) is bonded in a single-bond geometry to one Ce(3) atom.