SrNb2NiO7Cl crystallizes in the tetragonal P4/mmm space group. Sr(1) is bonded to four equivalent O(3) and eight equivalent O(1) atoms to form a mixture of corner and face-sharing SrO12 cuboctahedra. Nb(1) is bonded in a 6-coordinate geometry to one O(2), one O(3), and four equivalent O(1) atoms. Ni(1) is bonded in a distorted linear geometry to two equivalent O(2) and four equivalent Cl(1) atoms. There are three inequivalent O sites. In the first O site, O(1) is bonded in a distorted bent 150 degrees geometry to two equivalent Sr(1) and two equivalent Nb(1) atoms. In the second O site, O(2) is bonded in a linear geometry to one Nb(1) and one Ni(1) atom. In the third O site, O(3) is bonded to four equivalent Sr(1) and two equivalent Nb(1) atoms to form a mixture of corner and edge-sharing OSr4Nb2 octahedra. The corner-sharing octahedra are not tilted. Cl(1) is bonded in a square co-planar geometry to four equivalent Ni(1) atoms.
SrNb2NiO7Cl crystallizes in the tetragonal P4/mmm space group. Sr(1) is bonded to four equivalent O(3) and eight equivalent O(1) atoms to form a mixture of corner and face-sharing SrO12 cuboctahedra. All Sr(1)-O(3) bond lengths are 2.79 Å. All Sr(1)-O(1) bond lengths are 2.73 Å. Nb(1) is bonded in a 6-coordinate geometry to one O(2), one O(3), and four equivalent O(1) atoms. The Nb(1)-O(2) bond length is 1.82 Å. The Nb(1)-O(3) bond length is 2.29 Å. All Nb(1)-O(1) bond lengths are 2.01 Å. Ni(1) is bonded in a distorted linear geometry to two equivalent O(2) and four equivalent Cl(1) atoms. Both Ni(1)-O(2) bond lengths are 1.89 Å. All Ni(1)-Cl(1) bond lengths are 2.79 Å. There are three inequivalent O sites. In the first O site, O(1) is bonded in a distorted bent 150 degrees geometry to two equivalent Sr(1) and two equivalent Nb(1) atoms. In the second O site, O(2) is bonded in a linear geometry to one Nb(1) and one Ni(1) atom. In the third O site, O(3) is bonded to four equivalent Sr(1) and two equivalent Nb(1) atoms to form a mixture of corner and edge-sharing OSr4Nb2 octahedra. The corner-sharing octahedra are not tilted. Cl(1) is bonded in a square co-planar geometry to four equivalent Ni(1) atoms.