The structure described by Bi4V2O11 crystallizes in the triclinic P1 space group. There are two inequivalent V sites. In the first V site, V(1) is bonded in a distorted tetrahedral geometry to one O(10), one O(5), one O(6), and one O(9) atom. In the second V site, V(2) is bonded in a 4-coordinate geometry to one O(11), one O(6), one O(7), and one O(8) atom. There are four inequivalent Bi sites. In the first Bi site, Bi(1) is bonded in a 6-coordinate geometry to one O(1), one O(11), one O(2), one O(3), one O(4), and one O(9) atom. In the second Bi site, Bi(2) is bonded in a 5-coordinate geometry to one O(1), one O(2), one O(3), one O(4), and one O(7) atom. In the third Bi site, Bi(3) is bonded in a 7-coordinate geometry to one O(1), one O(11), one O(2), one O(3), one O(4), one O(8), and one O(9) atom. In the fourth Bi site, Bi(4) is bonded in a 6-coordinate geometry to one O(1), one O(10), one O(2), one O(3), one O(4), and one O(7) atom. There are eleven inequivalent O sites. In the first O site, O(1) is bonded to one Bi(1), one Bi(2), one Bi(3), and one Bi(4) atom to form a mixture of edge and corner-sharing OBi4 tetrahedra. In the second O site, O(2) is bonded to one Bi(1), one Bi(2), one Bi(3), and one Bi(4) atom to form a mixture of distorted edge and corner-sharing OBi4 tetrahedra. In the third O site, O(3) is bonded to one Bi(1), one Bi(2), one Bi(3), and one Bi(4) atom to form a mixture of edge and corner-sharing OBi4 tetrahedra. In the fourth O site, O(4) is bonded to one Bi(1), one Bi(2), one Bi(3), and one Bi(4) atom to form a mixture of distorted edge and corner-sharing OBi4 tetrahedra. In the fifth O site, O(5) is bonded in a distorted single-bond geometry to one V(1) atom. In the sixth O site, O(6) is bonded in a distorted bent 150 degrees geometry to one V(1) and one V(2) atom. In the seventh O site, O(7) is bonded in a distorted single-bond geometry to one V(2), one Bi(2), and one Bi(4) atom. In the eighth O site, O(8) is bonded in a single-bond geometry to one V(2) and one Bi(3) atom. In the ninth O site, O(9) is bonded in a 1-coordinate geometry to one V(1), one Bi(1), and one Bi(3) atom. In the tenth O site, O(10) is bonded in a 2-coordinate geometry to one V(1) and one Bi(4) atom. In the eleventh O site, O(11) is bonded in a distorted single-bond geometry to one V(2), one Bi(1), and one Bi(3) atom. is represented by the Crystallographic Information File (CIF) [CIF]
data_V2Bi4O11
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   5.654
_cell_length_b   5.576
_cell_length_c   8.072
_cell_angle_alpha   90.125
_cell_angle_beta   69.397
_cell_angle_gamma   91.413
_symmetry_Int_Tables_number   1
_cell_volume   238.124
_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  0.497  0.473  0.987  1.0
  V  V1  1  0.071  0.036  0.983  1.0
  Bi  Bi2  1  0.743  0.996  0.638  1.0
  Bi  Bi3  1  0.396  0.005  0.335  1.0
  Bi  Bi4  1  0.165  0.519  0.661  1.0
  Bi  Bi5  1  0.842  0.521  0.311  1.0
  O  O6  1  0.051  0.750  0.476  1.0
  O  O7  1  0.561  0.237  0.490  1.0
  O  O8  1  0.544  0.749  0.494  1.0
  O  O9  1  0.062  0.238  0.485  1.0
  O  O10  1  0.268  0.656  0.991  1.0
  O  O11  1  0.372  0.171  0.984  1.0
  O  O12  1  0.878  0.911  0.182  1.0
  O  O13  1  0.919  0.286  0.979  1.0
  O  O14  1  0.727  0.539  0.784  1.0
  O  O15  1  0.525  0.519  0.191  1.0
  O  O16  1  0.088  0.910  0.785  1.0
[/CIF]
.
The structure described by Bi4V2O11 crystallizes in the triclinic P1 space group. There are two inequivalent V sites. In the first V site, V(1) is bonded in a distorted tetrahedral geometry to one O(10), one O(5), one O(6), and one O(9) atom. In the second V site, V(2) is bonded in a 4-coordinate geometry to one O(11), one O(6), one O(7), and one O(8) atom. There are four inequivalent Bi sites. In the first Bi site, Bi(1) is bonded in a 6-coordinate geometry to one O(1), one O(11), one O(2), one O(3), one O(4), and one O(9) atom. In the second Bi site, Bi(2) is bonded in a 5-coordinate geometry to one O(1), one O(2), one O(3), one O(4), and one O(7) atom. In the third Bi site, Bi(3) is bonded in a 7-coordinate geometry to one O(1), one O(11), one O(2), one O(3), one O(4), one O(8), and one O(9) atom. In the fourth Bi site, Bi(4) is bonded in a 6-coordinate geometry to one O(1), one O(10), one O(2), one O(3), one O(4), and one O(7) atom. There are eleven inequivalent O sites. In the first O site, O(1) is bonded to one Bi(1), one Bi(2), one Bi(3), and one Bi(4) atom to form a mixture of edge and corner-sharing OBi4 tetrahedra. In the second O site, O(2) is bonded to one Bi(1), one Bi(2), one Bi(3), and one Bi(4) atom to form a mixture of distorted edge and corner-sharing OBi4 tetrahedra. In the third O site, O(3) is bonded to one Bi(1), one Bi(2), one Bi(3), and one Bi(4) atom to form a mixture of edge and corner-sharing OBi4 tetrahedra. In the fourth O site, O(4) is bonded to one Bi(1), one Bi(2), one Bi(3), and one Bi(4) atom to form a mixture of distorted edge and corner-sharing OBi4 tetrahedra. In the fifth O site, O(5) is bonded in a distorted single-bond geometry to one V(1) atom. In the sixth O site, O(6) is bonded in a distorted bent 150 degrees geometry to one V(1) and one V(2) atom. In the seventh O site, O(7) is bonded in a distorted single-bond geometry to one V(2), one Bi(2), and one Bi(4) atom. In the eighth O site, O(8) is bonded in a single-bond geometry to one V(2) and one Bi(3) atom. In the ninth O site, O(9) is bonded in a 1-coordinate geometry to one V(1), one Bi(1), and one Bi(3) atom. In the tenth O site, O(10) is bonded in a 2-coordinate geometry to one V(1) and one Bi(4) atom. In the eleventh O site, O(11) is bonded in a distorted single-bond geometry to one V(2), one Bi(1), and one Bi(3) atom. is represented by the Crystallographic Information File (CIF) [CIF]
data_V2Bi4O11
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   5.654
_cell_length_b   5.576
_cell_length_c   8.072
_cell_angle_alpha   90.125
_cell_angle_beta   69.397
_cell_angle_gamma   91.413
_symmetry_Int_Tables_number   1
_cell_volume   238.124
_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  0.497  0.473  0.987  1.0
  V  V1  1  0.071  0.036  0.983  1.0
  Bi  Bi2  1  0.743  0.996  0.638  1.0
  Bi  Bi3  1  0.396  0.005  0.335  1.0
  Bi  Bi4  1  0.165  0.519  0.661  1.0
  Bi  Bi5  1  0.842  0.521  0.311  1.0
  O  O6  1  0.051  0.750  0.476  1.0
  O  O7  1  0.561  0.237  0.490  1.0
  O  O8  1  0.544  0.749  0.494  1.0
  O  O9  1  0.062  0.238  0.485  1.0
  O  O10  1  0.268  0.656  0.991  1.0
  O  O11  1  0.372  0.171  0.984  1.0
  O  O12  1  0.878  0.911  0.182  1.0
  O  O13  1  0.919  0.286  0.979  1.0
  O  O14  1  0.727  0.539  0.784  1.0
  O  O15  1  0.525  0.519  0.191  1.0
  O  O16  1  0.088  0.910  0.785  1.0
[/CIF]
.