The structure described by SnO2 is Cotunnite structured and crystallizes in the orthorhombic Pnma space group. Sn(1) is bonded in a 7-coordinate geometry to three equivalent O(1) and four equivalent O(2) atoms. There are two inequivalent O sites. In the first O site, O(1) is bonded in a trigonal non-coplanar geometry to three equivalent Sn(1) atoms. In the second O site, O(2) is bonded to four equivalent Sn(1) atoms to form a mixture of distorted corner and edge-sharing OSn4 tetrahedra. is represented by the Crystallographic Information File (CIF) [CIF]
data_SnO2
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   3.571
_cell_length_b   5.305
_cell_length_c   7.310
_cell_angle_alpha   90.000
_cell_angle_beta   90.000
_cell_angle_gamma   90.000
_symmetry_Int_Tables_number   1
_cell_volume   138.513
_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  0.250  0.266  0.917  1.0
  Sn  Sn1  1  0.750  0.734  0.083  1.0
  Sn  Sn2  1  0.750  0.234  0.417  1.0
  Sn  Sn3  1  0.250  0.766  0.583  1.0
  O  O4  1  0.750  0.970  0.633  1.0
  O  O5  1  0.750  0.116  0.114  1.0
  O  O6  1  0.250  0.030  0.367  1.0
  O  O7  1  0.250  0.884  0.886  1.0
  O  O8  1  0.250  0.530  0.133  1.0
  O  O9  1  0.250  0.384  0.614  1.0
  O  O10  1  0.750  0.616  0.386  1.0
  O  O11  1  0.750  0.470  0.867  1.0
[/CIF]
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The structure described by SnO2 is Cotunnite structured and crystallizes in the orthorhombic Pnma space group. Sn(1) is bonded in a 7-coordinate geometry to three equivalent O(1) and four equivalent O(2) atoms. There are two inequivalent O sites. In the first O site, O(1) is bonded in a trigonal non-coplanar geometry to three equivalent Sn(1) atoms. In the second O site, O(2) is bonded to four equivalent Sn(1) atoms to form a mixture of distorted corner and edge-sharing OSn4 tetrahedra. is represented by the Crystallographic Information File (CIF) [CIF]
data_SnO2
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   3.571
_cell_length_b   5.305
_cell_length_c   7.310
_cell_angle_alpha   90.000
_cell_angle_beta   90.000
_cell_angle_gamma   90.000
_symmetry_Int_Tables_number   1
_cell_volume   138.513
_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  0.250  0.266  0.917  1.0
  Sn  Sn1  1  0.750  0.734  0.083  1.0
  Sn  Sn2  1  0.750  0.234  0.417  1.0
  Sn  Sn3  1  0.250  0.766  0.583  1.0
  O  O4  1  0.750  0.970  0.633  1.0
  O  O5  1  0.750  0.116  0.114  1.0
  O  O6  1  0.250  0.030  0.367  1.0
  O  O7  1  0.250  0.884  0.886  1.0
  O  O8  1  0.250  0.530  0.133  1.0
  O  O9  1  0.250  0.384  0.614  1.0
  O  O10  1  0.750  0.616  0.386  1.0
  O  O11  1  0.750  0.470  0.867  1.0
[/CIF]
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