The material described by BiSr2V3O11 crystallizes in the triclinic P-1 space group. There are two inequivalent Sr sites. In the first Sr site, Sr(1) is bonded in a 9-coordinate geometry to one O(10), one O(2), one O(4), one O(5), one O(7), two equivalent O(6), and two equivalent O(9) atoms. In the second Sr site, Sr(2) is bonded in a 9-coordinate geometry to one O(1), one O(10), one O(11), one O(4), one O(7), one O(8), one O(9), and two equivalent O(3) atoms. There are three inequivalent V sites. In the first V site, V(1) is bonded to one O(3), one O(4), one O(7), and one O(8) atom to form VO4 tetrahedra that share corners with three equivalent Bi(1)O6 octahedra. The corner-sharing octahedral tilt angles range from 43-78°. In the second V site, V(2) is bonded to one O(2), one O(5), one O(6), and one O(9) atom to form VO4 tetrahedra that share  a cornercorner with one Bi(1)O6 octahedra and  a cornercorner with one V(3)O4 tetrahedra. The corner-sharing octahedral tilt angles are 36°. In the third V site, V(3) is bonded to one O(1), one O(10), one O(11), and one O(2) atom to form VO4 tetrahedra that share corners with two equivalent Bi(1)O6 octahedra and  a cornercorner with one V(2)O4 tetrahedra. The corner-sharing octahedral tilt angles range from 39-65°. Bi(1) is bonded to one O(1), one O(11), one O(5), one O(7), and two equivalent O(8) atoms to form distorted BiO6 octahedra that share  a cornercorner with one V(2)O4 tetrahedra, corners with two equivalent V(3)O4 tetrahedra, corners with three equivalent V(1)O4 tetrahedra, and  an edgeedge with one Bi(1)O6 octahedra. There are eleven inequivalent O sites. In the first O site, O(11) is bonded in a 3-coordinate geometry to one Sr(2), one V(3), and one Bi(1) atom. In the second O site, O(1) is bonded in a 3-coordinate geometry to one Sr(2), one V(3), and one Bi(1) atom. In the third O site, O(2) is bonded in a distorted bent 120 degrees geometry to one Sr(1), one V(2), and one V(3) atom. In the fourth O site, O(3) is bonded in a distorted single-bond geometry to two equivalent Sr(2) and one V(1) atom. In the fifth O site, O(4) is bonded in a distorted single-bond geometry to one Sr(1), one Sr(2), and one V(1) atom. In the sixth O site, O(5) is bonded in a 3-coordinate geometry to one Sr(1), one V(2), and one Bi(1) atom. In the seventh O site, O(6) is bonded in a 3-coordinate geometry to two equivalent Sr(1) and one V(2) atom. In the eighth O site, O(7) is bonded in a distorted single-bond geometry to one Sr(1), one Sr(2), one V(1), and one Bi(1) atom. In the ninth O site, O(8) is bonded in a 4-coordinate geometry to one Sr(2), one V(1), and two equivalent Bi(1) atoms. In the tenth O site, O(9) is bonded in a distorted single-bond geometry to one Sr(2), two equivalent Sr(1), and one V(2) atom. In the eleventh O site, O(10) is bonded in a 3-coordinate geometry to one Sr(1), one Sr(2), and one V(3) atom. is represented by the Crystallographic Information File (CIF) [CIF]
data_Sr2V3BiO11
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   7.095
_cell_length_b   7.130
_cell_length_c   10.379
_cell_angle_alpha   99.230
_cell_angle_beta   95.934
_cell_angle_gamma   92.898
_symmetry_Int_Tables_number   1
_cell_volume   514.202
_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
  Sr  Sr0  1  0.650  0.251  0.979  1.0
  Sr  Sr1  1  0.350  0.749  0.021  1.0
  Sr  Sr2  1  0.340  0.388  0.637  1.0
  Sr  Sr3  1  0.660  0.612  0.363  1.0
  V  V4  1  0.641  0.111  0.335  1.0
  V  V5  1  0.359  0.889  0.665  1.0
  V  V6  1  0.160  0.236  0.962  1.0
  V  V7  1  0.840  0.764  0.038  1.0
  V  V8  1  0.133  0.427  0.265  1.0
  V  V9  1  0.867  0.573  0.735  1.0
  Bi  Bi10  1  0.849  0.071  0.640  1.0
  Bi  Bi11  1  0.151  0.929  0.360  1.0
  O  O12  1  0.991  0.394  0.655  1.0
  O  O13  1  0.009  0.606  0.345  1.0
  O  O14  1  0.028  0.340  0.096  1.0
  O  O15  1  0.972  0.660  0.904  1.0
  O  O16  1  0.419  0.747  0.526  1.0
  O  O17  1  0.581  0.253  0.474  1.0
  O  O18  1  0.700  0.262  0.232  1.0
  O  O19  1  0.300  0.738  0.768  1.0
  O  O20  1  0.971  0.121  0.851  1.0
  O  O21  1  0.029  0.879  0.149  1.0
  O  O22  1  0.681  0.913  0.988  1.0
  O  O23  1  0.319  0.087  0.012  1.0
  O  O24  1  0.542  0.060  0.735  1.0
  O  O25  1  0.458  0.940  0.265  1.0
  O  O26  1  0.167  0.026  0.605  1.0
  O  O27  1  0.833  0.974  0.395  1.0
  O  O28  1  0.300  0.397  0.902  1.0
  O  O29  1  0.700  0.603  0.098  1.0
  O  O30  1  0.661  0.461  0.762  1.0
  O  O31  1  0.339  0.539  0.238  1.0
  O  O32  1  0.826  0.744  0.635  1.0
  O  O33  1  0.174  0.256  0.365  1.0
[/CIF]
.
The material described by BiSr2V3O11 crystallizes in the triclinic P-1 space group. There are two inequivalent Sr sites. In the first Sr site, Sr(1) is bonded in a 9-coordinate geometry to one O(10), one O(2), one O(4), one O(5), one O(7), two equivalent O(6), and two equivalent O(9) atoms. In the second Sr site, Sr(2) is bonded in a 9-coordinate geometry to one O(1), one O(10), one O(11), one O(4), one O(7), one O(8), one O(9), and two equivalent O(3) atoms. There are three inequivalent V sites. In the first V site, V(1) is bonded to one O(3), one O(4), one O(7), and one O(8) atom to form VO4 tetrahedra that share corners with three equivalent Bi(1)O6 octahedra. The corner-sharing octahedral tilt angles range from 43-78°. In the second V site, V(2) is bonded to one O(2), one O(5), one O(6), and one O(9) atom to form VO4 tetrahedra that share  a cornercorner with one Bi(1)O6 octahedra and  a cornercorner with one V(3)O4 tetrahedra. The corner-sharing octahedral tilt angles are 36°. In the third V site, V(3) is bonded to one O(1), one O(10), one O(11), and one O(2) atom to form VO4 tetrahedra that share corners with two equivalent Bi(1)O6 octahedra and  a cornercorner with one V(2)O4 tetrahedra. The corner-sharing octahedral tilt angles range from 39-65°. Bi(1) is bonded to one O(1), one O(11), one O(5), one O(7), and two equivalent O(8) atoms to form distorted BiO6 octahedra that share  a cornercorner with one V(2)O4 tetrahedra, corners with two equivalent V(3)O4 tetrahedra, corners with three equivalent V(1)O4 tetrahedra, and  an edgeedge with one Bi(1)O6 octahedra. There are eleven inequivalent O sites. In the first O site, O(11) is bonded in a 3-coordinate geometry to one Sr(2), one V(3), and one Bi(1) atom. In the second O site, O(1) is bonded in a 3-coordinate geometry to one Sr(2), one V(3), and one Bi(1) atom. In the third O site, O(2) is bonded in a distorted bent 120 degrees geometry to one Sr(1), one V(2), and one V(3) atom. In the fourth O site, O(3) is bonded in a distorted single-bond geometry to two equivalent Sr(2) and one V(1) atom. In the fifth O site, O(4) is bonded in a distorted single-bond geometry to one Sr(1), one Sr(2), and one V(1) atom. In the sixth O site, O(5) is bonded in a 3-coordinate geometry to one Sr(1), one V(2), and one Bi(1) atom. In the seventh O site, O(6) is bonded in a 3-coordinate geometry to two equivalent Sr(1) and one V(2) atom. In the eighth O site, O(7) is bonded in a distorted single-bond geometry to one Sr(1), one Sr(2), one V(1), and one Bi(1) atom. In the ninth O site, O(8) is bonded in a 4-coordinate geometry to one Sr(2), one V(1), and two equivalent Bi(1) atoms. In the tenth O site, O(9) is bonded in a distorted single-bond geometry to one Sr(2), two equivalent Sr(1), and one V(2) atom. In the eleventh O site, O(10) is bonded in a 3-coordinate geometry to one Sr(1), one Sr(2), and one V(3) atom. is represented by the Crystallographic Information File (CIF) [CIF]
data_Sr2V3BiO11
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   7.095
_cell_length_b   7.130
_cell_length_c   10.379
_cell_angle_alpha   99.230
_cell_angle_beta   95.934
_cell_angle_gamma   92.898
_symmetry_Int_Tables_number   1
_cell_volume   514.202
_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
  Sr  Sr0  1  0.650  0.251  0.979  1.0
  Sr  Sr1  1  0.350  0.749  0.021  1.0
  Sr  Sr2  1  0.340  0.388  0.637  1.0
  Sr  Sr3  1  0.660  0.612  0.363  1.0
  V  V4  1  0.641  0.111  0.335  1.0
  V  V5  1  0.359  0.889  0.665  1.0
  V  V6  1  0.160  0.236  0.962  1.0
  V  V7  1  0.840  0.764  0.038  1.0
  V  V8  1  0.133  0.427  0.265  1.0
  V  V9  1  0.867  0.573  0.735  1.0
  Bi  Bi10  1  0.849  0.071  0.640  1.0
  Bi  Bi11  1  0.151  0.929  0.360  1.0
  O  O12  1  0.991  0.394  0.655  1.0
  O  O13  1  0.009  0.606  0.345  1.0
  O  O14  1  0.028  0.340  0.096  1.0
  O  O15  1  0.972  0.660  0.904  1.0
  O  O16  1  0.419  0.747  0.526  1.0
  O  O17  1  0.581  0.253  0.474  1.0
  O  O18  1  0.700  0.262  0.232  1.0
  O  O19  1  0.300  0.738  0.768  1.0
  O  O20  1  0.971  0.121  0.851  1.0
  O  O21  1  0.029  0.879  0.149  1.0
  O  O22  1  0.681  0.913  0.988  1.0
  O  O23  1  0.319  0.087  0.012  1.0
  O  O24  1  0.542  0.060  0.735  1.0
  O  O25  1  0.458  0.940  0.265  1.0
  O  O26  1  0.167  0.026  0.605  1.0
  O  O27  1  0.833  0.974  0.395  1.0
  O  O28  1  0.300  0.397  0.902  1.0
  O  O29  1  0.700  0.603  0.098  1.0
  O  O30  1  0.661  0.461  0.762  1.0
  O  O31  1  0.339  0.539  0.238  1.0
  O  O32  1  0.826  0.744  0.635  1.0
  O  O33  1  0.174  0.256  0.365  1.0
[/CIF]
.