SrV5NiO11 crystallizes in the hexagonal P6_3/mmc space group. Sr(1) is bonded to six equivalent O(2) and six equivalent O(3) atoms to form SrO12 cuboctahedra that share corners with six equivalent Sr(1)O12 cuboctahedra, edges with six equivalent V(1)O6 octahedra, edges with three equivalent Ni(1)O5 trigonal bipyramids, and faces with six equivalent V(2)O6 octahedra. There are two inequivalent V sites. In the first V site, V(1) is bonded to two equivalent O(1) and four equivalent O(2) atoms to form VO6 octahedra that share corners with four equivalent V(2)O6 octahedra, corners with two equivalent Ni(1)O5 trigonal bipyramids, edges with two equivalent Sr(1)O12 cuboctahedra, and edges with four equivalent V(1)O6 octahedra. The corner-sharing octahedral tilt angles are 52°. In the second V site, V(2) is bonded to three equivalent O(2) and three equivalent O(3) atoms to form VO6 octahedra that share corners with six equivalent V(1)O6 octahedra, corners with three equivalent Ni(1)O5 trigonal bipyramids, faces with three equivalent Sr(1)O12 cuboctahedra, and  a faceface with one V(2)O6 octahedra. The corner-sharing octahedral tilt angles are 52°. Ni(1) is bonded to two equivalent O(1) and three equivalent O(3) atoms to form distorted NiO5 trigonal bipyramids that share corners with six equivalent V(1)O6 octahedra, corners with six equivalent V(2)O6 octahedra, and edges with three equivalent Sr(1)O12 cuboctahedra. The corner-sharing octahedral tilt angles range from 43-58°. There are three inequivalent O sites. In the first O site, O(1) is bonded in a 4-coordinate geometry to three equivalent V(1) and one Ni(1) atom. In the second O site, O(2) is bonded in a 3-coordinate geometry to one Sr(1), one V(2), and two equivalent V(1) atoms. In the third O site, O(3) is bonded in a 3-coordinate geometry to two equivalent Sr(1), two equivalent V(2), and one Ni(1) atom.
SrV5NiO11 crystallizes in the hexagonal P6_3/mmc space group. Sr(1) is bonded to six equivalent O(2) and six equivalent O(3) atoms to form SrO12 cuboctahedra that share corners with six equivalent Sr(1)O12 cuboctahedra, edges with six equivalent V(1)O6 octahedra, edges with three equivalent Ni(1)O5 trigonal bipyramids, and faces with six equivalent V(2)O6 octahedra. All Sr(1)-O(2) bond lengths are 2.91 Å. All Sr(1)-O(3) bond lengths are 2.92 Å. There are two inequivalent V sites. In the first V site, V(1) is bonded to two equivalent O(1) and four equivalent O(2) atoms to form VO6 octahedra that share corners with four equivalent V(2)O6 octahedra, corners with two equivalent Ni(1)O5 trigonal bipyramids, edges with two equivalent Sr(1)O12 cuboctahedra, and edges with four equivalent V(1)O6 octahedra. The corner-sharing octahedral tilt angles are 52°. Both V(1)-O(1) bond lengths are 1.97 Å. All V(1)-O(2) bond lengths are 1.96 Å. In the second V site, V(2) is bonded to three equivalent O(2) and three equivalent O(3) atoms to form VO6 octahedra that share corners with six equivalent V(1)O6 octahedra, corners with three equivalent Ni(1)O5 trigonal bipyramids, faces with three equivalent Sr(1)O12 cuboctahedra, and  a faceface with one V(2)O6 octahedra. The corner-sharing octahedral tilt angles are 52°. All V(2)-O(2) bond lengths are 2.03 Å. All V(2)-O(3) bond lengths are 2.04 Å. Ni(1) is bonded to two equivalent O(1) and three equivalent O(3) atoms to form distorted NiO5 trigonal bipyramids that share corners with six equivalent V(1)O6 octahedra, corners with six equivalent V(2)O6 octahedra, and edges with three equivalent Sr(1)O12 cuboctahedra. The corner-sharing octahedral tilt angles range from 43-58°. Both Ni(1)-O(1) bond lengths are 2.46 Å. All Ni(1)-O(3) bond lengths are 1.87 Å. There are three inequivalent O sites. In the first O site, O(1) is bonded in a 4-coordinate geometry to three equivalent V(1) and one Ni(1) atom. In the second O site, O(2) is bonded in a 3-coordinate geometry to one Sr(1), one V(2), and two equivalent V(1) atoms. In the third O site, O(3) is bonded in a 3-coordinate geometry to two equivalent Sr(1), two equivalent V(2), and one Ni(1) atom.