The structure described by Sr2V11NiO22 crystallizes in the orthorhombic Amm2 space group. There are two inequivalent Sr sites. In the first Sr site, Sr(1) is bonded to two equivalent O(10), two equivalent O(4), four equivalent O(3), and four equivalent O(9) atoms to form distorted SrO12 cuboctahedra that share corners with six equivalent Sr(1)O12 cuboctahedra, edges with two equivalent V(2)O6 octahedra, edges with four equivalent V(1)O6 octahedra, edges with three equivalent V(5)O5 trigonal bipyramids, and faces with six equivalent V(3)O6 octahedra. In the second Sr site, Sr(2) is bonded to two equivalent O(6), two equivalent O(8), four equivalent O(5), and four equivalent O(7) atoms to form distorted SrO12 cuboctahedra that share corners with six equivalent Sr(2)O12 cuboctahedra, edges with two equivalent V(2)O6 octahedra, edges with four equivalent V(1)O6 octahedra, edges with three equivalent Ni(1)O5 trigonal bipyramids, and faces with six equivalent V(4)O6 octahedra. There are five inequivalent V sites. In the first V site, V(1) is bonded to one O(1), one O(2), one O(3), one O(4), one O(5), and one O(6) atom to form VO6 octahedra that share corners with two equivalent V(3)O6 octahedra, corners with two equivalent V(4)O6 octahedra,  a cornercorner with one V(5)O5 trigonal bipyramid,  a cornercorner with one Ni(1)O5 trigonal bipyramid,  an edgeedge with one Sr(1)O12 cuboctahedra,  an edgeedge with one Sr(2)O12 cuboctahedra, edges with two equivalent V(1)O6 octahedra, and edges with two equivalent V(2)O6 octahedra. The corner-sharing octahedral tilt angles range from 52-56°. In the second V site, V(2) is bonded to one O(1), one O(2), two equivalent O(3), and two equivalent O(5) atoms to form VO6 octahedra that share corners with two equivalent V(3)O6 octahedra, corners with two equivalent V(4)O6 octahedra,  a cornercorner with one V(5)O5 trigonal bipyramid,  a cornercorner with one Ni(1)O5 trigonal bipyramid,  an edgeedge with one Sr(1)O12 cuboctahedra,  an edgeedge with one Sr(2)O12 cuboctahedra, and edges with four equivalent V(1)O6 octahedra. The corner-sharing octahedral tilt angles range from 53-54°. In the third V site, V(3) is bonded to one O(10), one O(4), two equivalent O(3), and two equivalent O(9) atoms to form distorted VO6 octahedra that share corners with two equivalent V(2)O6 octahedra, corners with four equivalent V(1)O6 octahedra, corners with three equivalent V(5)O5 trigonal bipyramids, faces with three equivalent Sr(1)O12 cuboctahedra, and  a faceface with one V(3)O6 octahedra. The corner-sharing octahedral tilt angles range from 53-56°. In the fourth V site, V(4) is bonded to one O(6), one O(8), two equivalent O(5), and two equivalent O(7) atoms to form VO6 octahedra that share corners with two equivalent V(2)O6 octahedra, corners with four equivalent V(1)O6 octahedra, corners with three equivalent Ni(1)O5 trigonal bipyramids, faces with three equivalent Sr(2)O12 cuboctahedra, and  a faceface with one V(4)O6 octahedra. The corner-sharing octahedral tilt angles range from 52-54°. In the fifth V site, V(5) is bonded to one O(10), two equivalent O(2), and two equivalent O(9) atoms to form VO5 trigonal bipyramids that share corners with two equivalent V(2)O6 octahedra, corners with four equivalent V(1)O6 octahedra, corners with six equivalent V(3)O6 octahedra, and edges with three equivalent Sr(1)O12 cuboctahedra. The corner-sharing octahedral tilt angles range from 41-57°. Ni(1) is bonded to one O(8), two equivalent O(1), and two equivalent O(7) atoms to form NiO5 trigonal bipyramids that share corners with two equivalent V(2)O6 octahedra, corners with four equivalent V(1)O6 octahedra, corners with six equivalent V(4)O6 octahedra, and edges with three equivalent Sr(2)O12 cuboctahedra. The corner-sharing octahedral tilt angles range from 42-58°. There are ten inequivalent O sites. In the first O site, O(3) is bonded in a 4-coordinate geometry to one Sr(1), one V(1), one V(2), and one V(3) atom. In the second O site, O(4) is bonded in a 4-coordinate geometry to one Sr(1), one V(3), and two equivalent V(1) atoms. In the third O site, O(5) is bonded in a 4-coordinate geometry to one Sr(2), one V(1), one V(2), and one V(4) atom. In the fourth O site, O(6) is bonded in a 4-coordinate geometry to one Sr(2), one V(4), and two equivalent V(1) atoms. In the fifth O site, O(7) is bonded in a 3-coordinate geometry to two equivalent Sr(2), two equivalent V(4), and one Ni(1) atom. In the sixth O site, O(8) is bonded in a 3-coordinate geometry to two equivalent Sr(2), two equivalent V(4), and one Ni(1) atom. In the seventh O site, O(9) is bonded in a 3-coordinate geometry to two equivalent Sr(1), one V(5), and two equivalent V(3) atoms. In the eighth O site, O(10) is bonded in a 3-coordinate geometry to two equivalent Sr(1), one V(5), and two equivalent V(3) atoms. In the ninth O site, O(1) is bonded in a rectangular see-saw-like geometry to one V(2), two equivalent V(1), and one Ni(1) atom. In the tenth O site, O(2) is bonded in a rectangular see-saw-like geometry to one V(2), one V(5), and two equivalent V(1) atoms. is represented by the CIF file [CIF]
data_Sr2V11NiO22
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   5.910
_cell_length_b   5.910
_cell_length_c   13.227
_cell_angle_alpha   90.000
_cell_angle_beta   90.000
_cell_angle_gamma   119.396
_symmetry_Int_Tables_number   1
_cell_volume   402.569
_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
  Sr  Sr0  1  0.334  0.666  0.000  1.0
  Sr  Sr1  1  0.665  0.335  0.500  1.0
  V  V2  1  0.000  0.502  0.249  1.0
  V  V3  1  0.497  0.503  0.251  1.0
  V  V4  1  0.498  1.000  0.249  1.0
  V  V5  1  0.000  0.502  0.751  1.0
  V  V6  1  0.497  0.503  0.749  1.0
  V  V7  1  0.498  1.000  0.751  1.0
  V  V8  1  0.003  0.997  0.107  1.0
  V  V9  1  0.995  0.005  0.399  1.0
  V  V10  1  0.995  0.005  0.601  1.0
  V  V11  1  0.003  0.997  0.893  1.0
  V  V12  1  0.669  0.331  0.000  1.0
  Ni  Ni13  1  0.334  0.666  0.500  1.0
  O  O14  1  0.339  0.661  0.665  1.0
  O  O15  1  0.662  0.338  0.839  1.0
  O  O16  1  0.662  0.338  0.161  1.0
  O  O17  1  0.339  0.661  0.335  1.0
  O  O18  1  0.648  0.819  0.169  1.0
  O  O19  1  0.175  0.825  0.167  1.0
  O  O20  1  0.181  0.352  0.169  1.0
  O  O21  1  0.347  0.178  0.332  1.0
  O  O22  1  0.833  0.167  0.333  1.0
  O  O23  1  0.822  0.653  0.332  1.0
  O  O24  1  0.347  0.178  0.668  1.0
  O  O25  1  0.833  0.167  0.667  1.0
  O  O26  1  0.822  0.653  0.668  1.0
  O  O27  1  0.648  0.819  0.831  1.0
  O  O28  1  0.175  0.825  0.833  1.0
  O  O29  1  0.181  0.352  0.831  1.0
  O  O30  1  0.711  0.853  0.500  1.0
  O  O31  1  0.141  0.859  0.500  1.0
  O  O32  1  0.147  0.289  0.500  1.0
  O  O33  1  0.308  0.159  0.000  1.0
  O  O34  1  0.846  0.154  0.000  1.0
  O  O35  1  0.841  0.692  0.000  1.0
[/CIF]
.
The structure described by Sr2V11NiO22 crystallizes in the orthorhombic Amm2 space group. There are two inequivalent Sr sites. In the first Sr site, Sr(1) is bonded to two equivalent O(10), two equivalent O(4), four equivalent O(3), and four equivalent O(9) atoms to form distorted SrO12 cuboctahedra that share corners with six equivalent Sr(1)O12 cuboctahedra, edges with two equivalent V(2)O6 octahedra, edges with four equivalent V(1)O6 octahedra, edges with three equivalent V(5)O5 trigonal bipyramids, and faces with six equivalent V(3)O6 octahedra. In the second Sr site, Sr(2) is bonded to two equivalent O(6), two equivalent O(8), four equivalent O(5), and four equivalent O(7) atoms to form distorted SrO12 cuboctahedra that share corners with six equivalent Sr(2)O12 cuboctahedra, edges with two equivalent V(2)O6 octahedra, edges with four equivalent V(1)O6 octahedra, edges with three equivalent Ni(1)O5 trigonal bipyramids, and faces with six equivalent V(4)O6 octahedra. There are five inequivalent V sites. In the first V site, V(1) is bonded to one O(1), one O(2), one O(3), one O(4), one O(5), and one O(6) atom to form VO6 octahedra that share corners with two equivalent V(3)O6 octahedra, corners with two equivalent V(4)O6 octahedra,  a cornercorner with one V(5)O5 trigonal bipyramid,  a cornercorner with one Ni(1)O5 trigonal bipyramid,  an edgeedge with one Sr(1)O12 cuboctahedra,  an edgeedge with one Sr(2)O12 cuboctahedra, edges with two equivalent V(1)O6 octahedra, and edges with two equivalent V(2)O6 octahedra. The corner-sharing octahedral tilt angles range from 52-56°. In the second V site, V(2) is bonded to one O(1), one O(2), two equivalent O(3), and two equivalent O(5) atoms to form VO6 octahedra that share corners with two equivalent V(3)O6 octahedra, corners with two equivalent V(4)O6 octahedra,  a cornercorner with one V(5)O5 trigonal bipyramid,  a cornercorner with one Ni(1)O5 trigonal bipyramid,  an edgeedge with one Sr(1)O12 cuboctahedra,  an edgeedge with one Sr(2)O12 cuboctahedra, and edges with four equivalent V(1)O6 octahedra. The corner-sharing octahedral tilt angles range from 53-54°. In the third V site, V(3) is bonded to one O(10), one O(4), two equivalent O(3), and two equivalent O(9) atoms to form distorted VO6 octahedra that share corners with two equivalent V(2)O6 octahedra, corners with four equivalent V(1)O6 octahedra, corners with three equivalent V(5)O5 trigonal bipyramids, faces with three equivalent Sr(1)O12 cuboctahedra, and  a faceface with one V(3)O6 octahedra. The corner-sharing octahedral tilt angles range from 53-56°. In the fourth V site, V(4) is bonded to one O(6), one O(8), two equivalent O(5), and two equivalent O(7) atoms to form VO6 octahedra that share corners with two equivalent V(2)O6 octahedra, corners with four equivalent V(1)O6 octahedra, corners with three equivalent Ni(1)O5 trigonal bipyramids, faces with three equivalent Sr(2)O12 cuboctahedra, and  a faceface with one V(4)O6 octahedra. The corner-sharing octahedral tilt angles range from 52-54°. In the fifth V site, V(5) is bonded to one O(10), two equivalent O(2), and two equivalent O(9) atoms to form VO5 trigonal bipyramids that share corners with two equivalent V(2)O6 octahedra, corners with four equivalent V(1)O6 octahedra, corners with six equivalent V(3)O6 octahedra, and edges with three equivalent Sr(1)O12 cuboctahedra. The corner-sharing octahedral tilt angles range from 41-57°. Ni(1) is bonded to one O(8), two equivalent O(1), and two equivalent O(7) atoms to form NiO5 trigonal bipyramids that share corners with two equivalent V(2)O6 octahedra, corners with four equivalent V(1)O6 octahedra, corners with six equivalent V(4)O6 octahedra, and edges with three equivalent Sr(2)O12 cuboctahedra. The corner-sharing octahedral tilt angles range from 42-58°. There are ten inequivalent O sites. In the first O site, O(3) is bonded in a 4-coordinate geometry to one Sr(1), one V(1), one V(2), and one V(3) atom. In the second O site, O(4) is bonded in a 4-coordinate geometry to one Sr(1), one V(3), and two equivalent V(1) atoms. In the third O site, O(5) is bonded in a 4-coordinate geometry to one Sr(2), one V(1), one V(2), and one V(4) atom. In the fourth O site, O(6) is bonded in a 4-coordinate geometry to one Sr(2), one V(4), and two equivalent V(1) atoms. In the fifth O site, O(7) is bonded in a 3-coordinate geometry to two equivalent Sr(2), two equivalent V(4), and one Ni(1) atom. In the sixth O site, O(8) is bonded in a 3-coordinate geometry to two equivalent Sr(2), two equivalent V(4), and one Ni(1) atom. In the seventh O site, O(9) is bonded in a 3-coordinate geometry to two equivalent Sr(1), one V(5), and two equivalent V(3) atoms. In the eighth O site, O(10) is bonded in a 3-coordinate geometry to two equivalent Sr(1), one V(5), and two equivalent V(3) atoms. In the ninth O site, O(1) is bonded in a rectangular see-saw-like geometry to one V(2), two equivalent V(1), and one Ni(1) atom. In the tenth O site, O(2) is bonded in a rectangular see-saw-like geometry to one V(2), one V(5), and two equivalent V(1) atoms. is represented by the CIF file [CIF]
data_Sr2V11NiO22
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   5.910
_cell_length_b   5.910
_cell_length_c   13.227
_cell_angle_alpha   90.000
_cell_angle_beta   90.000
_cell_angle_gamma   119.396
_symmetry_Int_Tables_number   1
_cell_volume   402.569
_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
  Sr  Sr0  1  0.334  0.666  0.000  1.0
  Sr  Sr1  1  0.665  0.335  0.500  1.0
  V  V2  1  0.000  0.502  0.249  1.0
  V  V3  1  0.497  0.503  0.251  1.0
  V  V4  1  0.498  1.000  0.249  1.0
  V  V5  1  0.000  0.502  0.751  1.0
  V  V6  1  0.497  0.503  0.749  1.0
  V  V7  1  0.498  1.000  0.751  1.0
  V  V8  1  0.003  0.997  0.107  1.0
  V  V9  1  0.995  0.005  0.399  1.0
  V  V10  1  0.995  0.005  0.601  1.0
  V  V11  1  0.003  0.997  0.893  1.0
  V  V12  1  0.669  0.331  0.000  1.0
  Ni  Ni13  1  0.334  0.666  0.500  1.0
  O  O14  1  0.339  0.661  0.665  1.0
  O  O15  1  0.662  0.338  0.839  1.0
  O  O16  1  0.662  0.338  0.161  1.0
  O  O17  1  0.339  0.661  0.335  1.0
  O  O18  1  0.648  0.819  0.169  1.0
  O  O19  1  0.175  0.825  0.167  1.0
  O  O20  1  0.181  0.352  0.169  1.0
  O  O21  1  0.347  0.178  0.332  1.0
  O  O22  1  0.833  0.167  0.333  1.0
  O  O23  1  0.822  0.653  0.332  1.0
  O  O24  1  0.347  0.178  0.668  1.0
  O  O25  1  0.833  0.167  0.667  1.0
  O  O26  1  0.822  0.653  0.668  1.0
  O  O27  1  0.648  0.819  0.831  1.0
  O  O28  1  0.175  0.825  0.833  1.0
  O  O29  1  0.181  0.352  0.831  1.0
  O  O30  1  0.711  0.853  0.500  1.0
  O  O31  1  0.141  0.859  0.500  1.0
  O  O32  1  0.147  0.289  0.500  1.0
  O  O33  1  0.308  0.159  0.000  1.0
  O  O34  1  0.846  0.154  0.000  1.0
  O  O35  1  0.841  0.692  0.000  1.0
[/CIF]
.