The compound described by V4SnO12 crystallizes in the monoclinic C2 space group. There are two inequivalent V sites. In the first V site, V(1) is bonded to one O(1), one O(2), one O(4), and one O(5) atom to form VO4 tetrahedra that share  a cornercorner with one Sn(1)O6 octahedra and corners with two equivalent V(2)O4 tetrahedra. The corner-sharing octahedral tilt angles are 47°. In the second V site, V(2) is bonded to one O(3), one O(4), one O(5), and one O(6) atom to form VO4 tetrahedra that share corners with two equivalent Sn(1)O6 octahedra and corners with two equivalent V(1)O4 tetrahedra. The corner-sharing octahedral tilt angles range from 32-50°. Sn(1) is bonded to two equivalent O(1), two equivalent O(3), and two equivalent O(6) atoms to form SnO6 octahedra that share corners with two equivalent V(1)O4 tetrahedra and corners with four equivalent V(2)O4 tetrahedra. There are six inequivalent O sites. In the first O site, O(1) is bonded in a distorted bent 120 degrees geometry to one V(1) and one Sn(1) atom. In the second O site, O(2) is bonded in a single-bond geometry to one V(1) atom. In the third O site, O(3) is bonded in a distorted bent 120 degrees geometry to one V(2) and one Sn(1) atom. In the fourth O site, O(4) is bonded in a bent 150 degrees geometry to one V(1) and one V(2) atom. In the fifth O site, O(5) is bonded in a bent 150 degrees geometry to one V(1) and one V(2) atom. In the sixth O site, O(6) is bonded in a bent 150 degrees geometry to one V(2) and one Sn(1) atom. is represented by the CIF file [CIF]
data_V4SnO12
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   6.925
_cell_length_b   6.925
_cell_length_c   5.985
_cell_angle_alpha   74.500
_cell_angle_beta   74.500
_cell_angle_gamma   83.005
_symmetry_Int_Tables_number   1
_cell_volume   266.117
_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
  V  V0  1  0.795  0.613  0.011  1.0
  V  V1  1  0.609  0.788  0.524  1.0
  V  V2  1  0.387  0.205  0.989  1.0
  V  V3  1  0.212  0.391  0.476  1.0
  Sn  Sn4  1  0.082  0.918  0.500  1.0
  O  O5  1  0.973  0.789  0.856  1.0
  O  O6  1  0.910  0.393  0.054  1.0
  O  O7  1  0.791  0.956  0.445  1.0
  O  O8  1  0.641  0.629  0.801  1.0
  O  O9  1  0.607  0.090  0.946  1.0
  O  O10  1  0.650  0.651  0.304  1.0
  O  O11  1  0.371  0.359  0.199  1.0
  O  O12  1  0.372  0.903  0.558  1.0
  O  O13  1  0.349  0.350  0.696  1.0
  O  O14  1  0.211  0.027  0.144  1.0
  O  O15  1  0.097  0.628  0.442  1.0
  O  O16  1  0.044  0.209  0.555  1.0
[/CIF]
.
The compound described by V4SnO12 crystallizes in the monoclinic C2 space group. There are two inequivalent V sites. In the first V site, V(1) is bonded to one O(1), one O(2), one O(4), and one O(5) atom to form VO4 tetrahedra that share  a cornercorner with one Sn(1)O6 octahedra and corners with two equivalent V(2)O4 tetrahedra. The corner-sharing octahedral tilt angles are 47°. In the second V site, V(2) is bonded to one O(3), one O(4), one O(5), and one O(6) atom to form VO4 tetrahedra that share corners with two equivalent Sn(1)O6 octahedra and corners with two equivalent V(1)O4 tetrahedra. The corner-sharing octahedral tilt angles range from 32-50°. Sn(1) is bonded to two equivalent O(1), two equivalent O(3), and two equivalent O(6) atoms to form SnO6 octahedra that share corners with two equivalent V(1)O4 tetrahedra and corners with four equivalent V(2)O4 tetrahedra. There are six inequivalent O sites. In the first O site, O(1) is bonded in a distorted bent 120 degrees geometry to one V(1) and one Sn(1) atom. In the second O site, O(2) is bonded in a single-bond geometry to one V(1) atom. In the third O site, O(3) is bonded in a distorted bent 120 degrees geometry to one V(2) and one Sn(1) atom. In the fourth O site, O(4) is bonded in a bent 150 degrees geometry to one V(1) and one V(2) atom. In the fifth O site, O(5) is bonded in a bent 150 degrees geometry to one V(1) and one V(2) atom. In the sixth O site, O(6) is bonded in a bent 150 degrees geometry to one V(2) and one Sn(1) atom. is represented by the CIF file [CIF]
data_V4SnO12
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   6.925
_cell_length_b   6.925
_cell_length_c   5.985
_cell_angle_alpha   74.500
_cell_angle_beta   74.500
_cell_angle_gamma   83.005
_symmetry_Int_Tables_number   1
_cell_volume   266.117
_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
  V  V0  1  0.795  0.613  0.011  1.0
  V  V1  1  0.609  0.788  0.524  1.0
  V  V2  1  0.387  0.205  0.989  1.0
  V  V3  1  0.212  0.391  0.476  1.0
  Sn  Sn4  1  0.082  0.918  0.500  1.0
  O  O5  1  0.973  0.789  0.856  1.0
  O  O6  1  0.910  0.393  0.054  1.0
  O  O7  1  0.791  0.956  0.445  1.0
  O  O8  1  0.641  0.629  0.801  1.0
  O  O9  1  0.607  0.090  0.946  1.0
  O  O10  1  0.650  0.651  0.304  1.0
  O  O11  1  0.371  0.359  0.199  1.0
  O  O12  1  0.372  0.903  0.558  1.0
  O  O13  1  0.349  0.350  0.696  1.0
  O  O14  1  0.211  0.027  0.144  1.0
  O  O15  1  0.097  0.628  0.442  1.0
  O  O16  1  0.044  0.209  0.555  1.0
[/CIF]
.