The compound described by Sn2TiO4 crystallizes in the tetragonal P4_2/mbc space group. Ti(1) is bonded to two equivalent O(2) and four equivalent O(1) atoms to form edge-sharing TiO6 octahedra. Sn(1) is bonded in a 3-coordinate geometry to one O(1) and two equivalent O(2) atoms. There are two inequivalent O sites. In the first O site, O(2) is bonded in a trigonal planar geometry to one Ti(1) and two equivalent Sn(1) atoms. In the second O site, O(1) is bonded in a distorted trigonal planar geometry to two equivalent Ti(1) and one Sn(1) atom. is represented by the CIF card [CIF]
data_Ti(SnO2)2
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   8.533
_cell_length_b   8.533
_cell_length_c   5.930
_cell_angle_alpha   90.000
_cell_angle_beta   90.000
_cell_angle_gamma   90.000
_symmetry_Int_Tables_number   1
_cell_volume   431.816
_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
  Ti  Ti0  1  0.000  0.500  0.250  1.0
  Ti  Ti1  1  0.500  0.000  0.750  1.0
  Ti  Ti2  1  0.000  0.500  0.750  1.0
  Ti  Ti3  1  0.500  0.000  0.250  1.0
  Sn  Sn4  1  0.353  0.337  0.500  1.0
  Sn  Sn5  1  0.647  0.663  0.500  1.0
  Sn  Sn6  1  0.663  0.353  0.000  1.0
  Sn  Sn7  1  0.337  0.647  0.000  1.0
  Sn  Sn8  1  0.837  0.853  0.000  1.0
  Sn  Sn9  1  0.853  0.163  0.500  1.0
  Sn  Sn10  1  0.147  0.837  0.500  1.0
  Sn  Sn11  1  0.163  0.147  0.000  1.0
  O  O12  1  0.402  0.880  0.500  1.0
  O  O13  1  0.598  0.120  0.500  1.0
  O  O14  1  0.120  0.402  0.000  1.0
  O  O15  1  0.880  0.598  0.000  1.0
  O  O16  1  0.380  0.902  0.000  1.0
  O  O17  1  0.902  0.620  0.500  1.0
  O  O18  1  0.098  0.380  0.500  1.0
  O  O19  1  0.620  0.098  0.000  1.0
  O  O20  1  0.164  0.664  0.750  1.0
  O  O21  1  0.664  0.836  0.250  1.0
  O  O22  1  0.336  0.164  0.250  1.0
  O  O23  1  0.836  0.336  0.750  1.0
  O  O24  1  0.164  0.664  0.250  1.0
  O  O25  1  0.664  0.836  0.750  1.0
  O  O26  1  0.336  0.164  0.750  1.0
  O  O27  1  0.836  0.336  0.250  1.0
[/CIF]
.
The compound described by Sn2TiO4 crystallizes in the tetragonal P4_2/mbc space group. Ti(1) is bonded to two equivalent O(2) and four equivalent O(1) atoms to form edge-sharing TiO6 octahedra. Sn(1) is bonded in a 3-coordinate geometry to one O(1) and two equivalent O(2) atoms. There are two inequivalent O sites. In the first O site, O(2) is bonded in a trigonal planar geometry to one Ti(1) and two equivalent Sn(1) atoms. In the second O site, O(1) is bonded in a distorted trigonal planar geometry to two equivalent Ti(1) and one Sn(1) atom. is represented by the CIF card [CIF]
data_Ti(SnO2)2
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   8.533
_cell_length_b   8.533
_cell_length_c   5.930
_cell_angle_alpha   90.000
_cell_angle_beta   90.000
_cell_angle_gamma   90.000
_symmetry_Int_Tables_number   1
_cell_volume   431.816
_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
  Ti  Ti0  1  0.000  0.500  0.250  1.0
  Ti  Ti1  1  0.500  0.000  0.750  1.0
  Ti  Ti2  1  0.000  0.500  0.750  1.0
  Ti  Ti3  1  0.500  0.000  0.250  1.0
  Sn  Sn4  1  0.353  0.337  0.500  1.0
  Sn  Sn5  1  0.647  0.663  0.500  1.0
  Sn  Sn6  1  0.663  0.353  0.000  1.0
  Sn  Sn7  1  0.337  0.647  0.000  1.0
  Sn  Sn8  1  0.837  0.853  0.000  1.0
  Sn  Sn9  1  0.853  0.163  0.500  1.0
  Sn  Sn10  1  0.147  0.837  0.500  1.0
  Sn  Sn11  1  0.163  0.147  0.000  1.0
  O  O12  1  0.402  0.880  0.500  1.0
  O  O13  1  0.598  0.120  0.500  1.0
  O  O14  1  0.120  0.402  0.000  1.0
  O  O15  1  0.880  0.598  0.000  1.0
  O  O16  1  0.380  0.902  0.000  1.0
  O  O17  1  0.902  0.620  0.500  1.0
  O  O18  1  0.098  0.380  0.500  1.0
  O  O19  1  0.620  0.098  0.000  1.0
  O  O20  1  0.164  0.664  0.750  1.0
  O  O21  1  0.664  0.836  0.250  1.0
  O  O22  1  0.336  0.164  0.250  1.0
  O  O23  1  0.836  0.336  0.750  1.0
  O  O24  1  0.164  0.664  0.250  1.0
  O  O25  1  0.664  0.836  0.750  1.0
  O  O26  1  0.336  0.164  0.750  1.0
  O  O27  1  0.836  0.336  0.250  1.0
[/CIF]
.