The crystal structure described by Sn(GeO3)2 crystallizes in the monoclinic C2/c space group. Sn(1) is bonded to two equivalent O(2) and four equivalent O(3) atoms to form distorted SnO6 octahedra that share corners with six equivalent Ge(1)O4 tetrahedra and edges with two equivalent Sn(1)O6 octahedra. Ge(1) is bonded to one O(2), one O(3), and two equivalent O(1) atoms to form GeO4 tetrahedra that share corners with three equivalent Sn(1)O6 octahedra and corners with two equivalent Ge(1)O4 tetrahedra. The corner-sharing octahedral tilt angles range from 43-60°. There are three inequivalent O sites. In the first O site, O(1) is bonded in a distorted bent 150 degrees geometry to two equivalent Ge(1) atoms. In the second O site, O(2) is bonded in a distorted bent 150 degrees geometry to one Sn(1) and one Ge(1) atom. In the third O site, O(3) is bonded in a trigonal planar geometry to two equivalent Sn(1) and one Ge(1) atom. is represented by the CIF card [CIF]
data_Sn(GeO3)2
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   6.859
_cell_length_b   6.859
_cell_length_c   5.655
_cell_angle_alpha   76.898
_cell_angle_beta   76.898
_cell_angle_gamma   83.963
_symmetry_Int_Tables_number   1
_cell_volume   251.948
_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
  Sn  Sn0  1  0.105  0.895  0.750  1.0
  Sn  Sn1  1  0.895  0.105  0.250  1.0
  Ge  Ge2  1  0.211  0.384  0.764  1.0
  Ge  Ge3  1  0.616  0.789  0.736  1.0
  Ge  Ge4  1  0.789  0.616  0.236  1.0
  Ge  Ge5  1  0.384  0.211  0.264  1.0
  O  O6  1  0.387  0.336  0.502  1.0
  O  O7  1  0.664  0.613  0.998  1.0
  O  O8  1  0.613  0.664  0.498  1.0
  O  O9  1  0.336  0.387  0.002  1.0
  O  O10  1  0.618  0.086  0.196  1.0
  O  O11  1  0.914  0.382  0.304  1.0
  O  O12  1  0.382  0.914  0.804  1.0
  O  O13  1  0.086  0.618  0.696  1.0
  O  O14  1  0.042  0.180  0.871  1.0
  O  O15  1  0.820  0.958  0.629  1.0
  O  O16  1  0.958  0.820  0.129  1.0
  O  O17  1  0.180  0.042  0.371  1.0
[/CIF]
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The crystal structure described by Sn(GeO3)2 crystallizes in the monoclinic C2/c space group. Sn(1) is bonded to two equivalent O(2) and four equivalent O(3) atoms to form distorted SnO6 octahedra that share corners with six equivalent Ge(1)O4 tetrahedra and edges with two equivalent Sn(1)O6 octahedra. Ge(1) is bonded to one O(2), one O(3), and two equivalent O(1) atoms to form GeO4 tetrahedra that share corners with three equivalent Sn(1)O6 octahedra and corners with two equivalent Ge(1)O4 tetrahedra. The corner-sharing octahedral tilt angles range from 43-60°. There are three inequivalent O sites. In the first O site, O(1) is bonded in a distorted bent 150 degrees geometry to two equivalent Ge(1) atoms. In the second O site, O(2) is bonded in a distorted bent 150 degrees geometry to one Sn(1) and one Ge(1) atom. In the third O site, O(3) is bonded in a trigonal planar geometry to two equivalent Sn(1) and one Ge(1) atom. is represented by the CIF card [CIF]
data_Sn(GeO3)2
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   6.859
_cell_length_b   6.859
_cell_length_c   5.655
_cell_angle_alpha   76.898
_cell_angle_beta   76.898
_cell_angle_gamma   83.963
_symmetry_Int_Tables_number   1
_cell_volume   251.948
_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
  Sn  Sn0  1  0.105  0.895  0.750  1.0
  Sn  Sn1  1  0.895  0.105  0.250  1.0
  Ge  Ge2  1  0.211  0.384  0.764  1.0
  Ge  Ge3  1  0.616  0.789  0.736  1.0
  Ge  Ge4  1  0.789  0.616  0.236  1.0
  Ge  Ge5  1  0.384  0.211  0.264  1.0
  O  O6  1  0.387  0.336  0.502  1.0
  O  O7  1  0.664  0.613  0.998  1.0
  O  O8  1  0.613  0.664  0.498  1.0
  O  O9  1  0.336  0.387  0.002  1.0
  O  O10  1  0.618  0.086  0.196  1.0
  O  O11  1  0.914  0.382  0.304  1.0
  O  O12  1  0.382  0.914  0.804  1.0
  O  O13  1  0.086  0.618  0.696  1.0
  O  O14  1  0.042  0.180  0.871  1.0
  O  O15  1  0.820  0.958  0.629  1.0
  O  O16  1  0.958  0.820  0.129  1.0
  O  O17  1  0.180  0.042  0.371  1.0
[/CIF]
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