SrZnV2O7 crystallizes in the monoclinic P2_1/c space group. Sr(1) is bonded in a 9-coordinate geometry to one O(1), one O(2), one O(3), one O(5), one O(6), two equivalent O(4), and two equivalent O(7) atoms. There are two inequivalent V sites. In the first V site, V(1) is bonded to one O(1), one O(2), one O(5), and one O(6) atom to form VO4 tetrahedra that share  a cornercorner with one V(2)O4 tetrahedra and corners with three equivalent Zn(1)O5 trigonal bipyramids. In the second V site, V(2) is bonded to one O(3), one O(4), one O(6), and one O(7) atom to form VO4 tetrahedra that share  a cornercorner with one V(1)O4 tetrahedra and corners with two equivalent Zn(1)O5 trigonal bipyramids. Zn(1) is bonded to one O(1), one O(2), one O(3), one O(4), and one O(5) atom to form ZnO5 trigonal bipyramids that share corners with two equivalent V(2)O4 tetrahedra and corners with three equivalent V(1)O4 tetrahedra. There are seven inequivalent O sites. In the first O site, O(1) is bonded in a 3-coordinate geometry to one Sr(1), one V(1), and one Zn(1) atom. In the second O site, O(2) is bonded in a 3-coordinate geometry to one Sr(1), one V(1), and one Zn(1) atom. In the third O site, O(3) is bonded in a 3-coordinate geometry to one Sr(1), one V(2), and one Zn(1) atom. In the fourth O site, O(4) is bonded in a 4-coordinate geometry to two equivalent Sr(1), one V(2), and one Zn(1) atom. In the fifth O site, O(5) is bonded in a 3-coordinate geometry to one Sr(1), one V(1), and one Zn(1) atom. In the sixth O site, O(6) is bonded in a distorted bent 120 degrees geometry to one Sr(1), one V(1), and one V(2) atom. In the seventh O site, O(7) is bonded in a 3-coordinate geometry to two equivalent Sr(1) and one V(2) atom.
SrZnV2O7 crystallizes in the monoclinic P2_1/c space group. Sr(1) is bonded in a 9-coordinate geometry to one O(1), one O(2), one O(3), one O(5), one O(6), two equivalent O(4), and two equivalent O(7) atoms. The Sr(1)-O(1) bond length is 2.67 Å. The Sr(1)-O(2) bond length is 2.87 Å. The Sr(1)-O(3) bond length is 2.56 Å. The Sr(1)-O(5) bond length is 2.70 Å. The Sr(1)-O(6) bond length is 2.77 Å. There is one shorter (2.63 Å) and one longer (2.84 Å) Sr(1)-O(4) bond length. There is one shorter (2.55 Å) and one longer (2.68 Å) Sr(1)-O(7) bond length. There are two inequivalent V sites. In the first V site, V(1) is bonded to one O(1), one O(2), one O(5), and one O(6) atom to form VO4 tetrahedra that share  a cornercorner with one V(2)O4 tetrahedra and corners with three equivalent Zn(1)O5 trigonal bipyramids. The V(1)-O(1) bond length is 1.72 Å. The V(1)-O(2) bond length is 1.72 Å. The V(1)-O(5) bond length is 1.74 Å. The V(1)-O(6) bond length is 1.84 Å. In the second V site, V(2) is bonded to one O(3), one O(4), one O(6), and one O(7) atom to form VO4 tetrahedra that share  a cornercorner with one V(1)O4 tetrahedra and corners with two equivalent Zn(1)O5 trigonal bipyramids. The V(2)-O(3) bond length is 1.72 Å. The V(2)-O(4) bond length is 1.77 Å. The V(2)-O(6) bond length is 1.82 Å. The V(2)-O(7) bond length is 1.68 Å. Zn(1) is bonded to one O(1), one O(2), one O(3), one O(4), and one O(5) atom to form ZnO5 trigonal bipyramids that share corners with two equivalent V(2)O4 tetrahedra and corners with three equivalent V(1)O4 tetrahedra. The Zn(1)-O(1) bond length is 2.14 Å. The Zn(1)-O(2) bond length is 2.12 Å. The Zn(1)-O(3) bond length is 1.98 Å. The Zn(1)-O(4) bond length is 2.05 Å. The Zn(1)-O(5) bond length is 2.01 Å. There are seven inequivalent O sites. In the first O site, O(1) is bonded in a 3-coordinate geometry to one Sr(1), one V(1), and one Zn(1) atom. In the second O site, O(2) is bonded in a 3-coordinate geometry to one Sr(1), one V(1), and one Zn(1) atom. In the third O site, O(3) is bonded in a 3-coordinate geometry to one Sr(1), one V(2), and one Zn(1) atom. In the fourth O site, O(4) is bonded in a 4-coordinate geometry to two equivalent Sr(1), one V(2), and one Zn(1) atom. In the fifth O site, O(5) is bonded in a 3-coordinate geometry to one Sr(1), one V(1), and one Zn(1) atom. In the sixth O site, O(6) is bonded in a distorted bent 120 degrees geometry to one Sr(1), one V(1), and one V(2) atom. In the seventh O site, O(7) is bonded in a 3-coordinate geometry to two equivalent Sr(1) and one V(2) atom.