The structure described by ZnSn4O9 crystallizes in the tetragonal P4/n space group. Zn(1) is bonded in a distorted square co-planar geometry to four equivalent O(2) atoms. Sn(1) is bonded to one O(1), two equivalent O(2), and three equivalent O(3) atoms to form a mixture of distorted corner and edge-sharing SnO6 pentagonal pyramids. There are three inequivalent O sites. In the first O site, O(1) is bonded in a tetrahedral geometry to four equivalent Sn(1) atoms. In the second O site, O(2) is bonded in a trigonal planar geometry to one Zn(1) and two equivalent Sn(1) atoms. In the third O site, O(3) is bonded in a distorted trigonal non-coplanar geometry to three equivalent Sn(1) atoms. is represented by the Crystallographic Information File (CIF) [CIF]
data_ZnSn4O9
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   8.179
_cell_length_b   8.179
_cell_length_c   5.079
_cell_angle_alpha   90.000
_cell_angle_beta   90.000
_cell_angle_gamma   90.000
_symmetry_Int_Tables_number   1
_cell_volume   339.759
_cell_formula_units_Z   2
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
  Zn  Zn0  1  0.500  0.000  0.796  1.0
  Zn  Zn1  1  0.000  0.500  0.204  1.0
  Sn  Sn2  1  0.187  0.883  0.274  1.0
  Sn  Sn3  1  0.883  0.813  0.726  1.0
  Sn  Sn4  1  0.383  0.313  0.274  1.0
  Sn  Sn5  1  0.687  0.383  0.726  1.0
  Sn  Sn6  1  0.813  0.117  0.274  1.0
  Sn  Sn7  1  0.617  0.687  0.274  1.0
  Sn  Sn8  1  0.313  0.617  0.726  1.0
  Sn  Sn9  1  0.117  0.187  0.726  1.0
  O  O10  1  0.000  0.000  0.500  1.0
  O  O11  1  0.500  0.500  0.500  1.0
  O  O12  1  0.014  0.246  0.084  1.0
  O  O13  1  0.254  0.514  0.084  1.0
  O  O14  1  0.746  0.486  0.084  1.0
  O  O15  1  0.986  0.754  0.084  1.0
  O  O16  1  0.486  0.254  0.916  1.0
  O  O17  1  0.246  0.986  0.916  1.0
  O  O18  1  0.754  0.014  0.916  1.0
  O  O19  1  0.514  0.746  0.916  1.0
  O  O20  1  0.711  0.897  0.434  1.0
  O  O21  1  0.603  0.211  0.434  1.0
  O  O22  1  0.397  0.789  0.434  1.0
  O  O23  1  0.289  0.103  0.434  1.0
  O  O24  1  0.211  0.397  0.566  1.0
  O  O25  1  0.897  0.289  0.566  1.0
  O  O26  1  0.103  0.711  0.566  1.0
  O  O27  1  0.789  0.603  0.566  1.0
[/CIF]
.
The structure described by ZnSn4O9 crystallizes in the tetragonal P4/n space group. Zn(1) is bonded in a distorted square co-planar geometry to four equivalent O(2) atoms. Sn(1) is bonded to one O(1), two equivalent O(2), and three equivalent O(3) atoms to form a mixture of distorted corner and edge-sharing SnO6 pentagonal pyramids. There are three inequivalent O sites. In the first O site, O(1) is bonded in a tetrahedral geometry to four equivalent Sn(1) atoms. In the second O site, O(2) is bonded in a trigonal planar geometry to one Zn(1) and two equivalent Sn(1) atoms. In the third O site, O(3) is bonded in a distorted trigonal non-coplanar geometry to three equivalent Sn(1) atoms. is represented by the Crystallographic Information File (CIF) [CIF]
data_ZnSn4O9
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   8.179
_cell_length_b   8.179
_cell_length_c   5.079
_cell_angle_alpha   90.000
_cell_angle_beta   90.000
_cell_angle_gamma   90.000
_symmetry_Int_Tables_number   1
_cell_volume   339.759
_cell_formula_units_Z   2
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
  Zn  Zn0  1  0.500  0.000  0.796  1.0
  Zn  Zn1  1  0.000  0.500  0.204  1.0
  Sn  Sn2  1  0.187  0.883  0.274  1.0
  Sn  Sn3  1  0.883  0.813  0.726  1.0
  Sn  Sn4  1  0.383  0.313  0.274  1.0
  Sn  Sn5  1  0.687  0.383  0.726  1.0
  Sn  Sn6  1  0.813  0.117  0.274  1.0
  Sn  Sn7  1  0.617  0.687  0.274  1.0
  Sn  Sn8  1  0.313  0.617  0.726  1.0
  Sn  Sn9  1  0.117  0.187  0.726  1.0
  O  O10  1  0.000  0.000  0.500  1.0
  O  O11  1  0.500  0.500  0.500  1.0
  O  O12  1  0.014  0.246  0.084  1.0
  O  O13  1  0.254  0.514  0.084  1.0
  O  O14  1  0.746  0.486  0.084  1.0
  O  O15  1  0.986  0.754  0.084  1.0
  O  O16  1  0.486  0.254  0.916  1.0
  O  O17  1  0.246  0.986  0.916  1.0
  O  O18  1  0.754  0.014  0.916  1.0
  O  O19  1  0.514  0.746  0.916  1.0
  O  O20  1  0.711  0.897  0.434  1.0
  O  O21  1  0.603  0.211  0.434  1.0
  O  O22  1  0.397  0.789  0.434  1.0
  O  O23  1  0.289  0.103  0.434  1.0
  O  O24  1  0.211  0.397  0.566  1.0
  O  O25  1  0.897  0.289  0.566  1.0
  O  O26  1  0.103  0.711  0.566  1.0
  O  O27  1  0.789  0.603  0.566  1.0
[/CIF]
.