LiSr2Ta2(NO2)2 is Orthorhombic Perovskite-derived structured and crystallizes in the monoclinic C2/m space group. Li(1) is bonded in a square co-planar geometry to two equivalent N(1) and two equivalent O(1) atoms. Sr(1) is bonded in a 6-coordinate geometry to two equivalent N(1), two equivalent O(1), and four equivalent O(2) atoms. Ta(1) is bonded to two equivalent N(1), two equivalent O(1), and two equivalent O(2) atoms to form corner-sharing TaN2O4 octahedra. The corner-sharing octahedral tilt angles range from 0-9°. N(1) is bonded to one Li(1), two equivalent Sr(1), and two equivalent Ta(1) atoms to form a mixture of distorted corner and edge-sharing NSr2LiTa2 trigonal bipyramids. There are two inequivalent O sites. In the first O site, O(1) is bonded in a 3-coordinate geometry to one Li(1), two equivalent Sr(1), and two equivalent Ta(1) atoms. In the second O site, O(2) is bonded in a 6-coordinate geometry to four equivalent Sr(1) and two equivalent Ta(1) atoms.
LiSr2Ta2(NO2)2 is Orthorhombic Perovskite-derived structured and crystallizes in the monoclinic C2/m space group. Li(1) is bonded in a square co-planar geometry to two equivalent N(1) and two equivalent O(1) atoms. Both Li(1)-N(1) bond lengths are 2.03 Å. Both Li(1)-O(1) bond lengths are 2.02 Å. Sr(1) is bonded in a 6-coordinate geometry to two equivalent N(1), two equivalent O(1), and four equivalent O(2) atoms. Both Sr(1)-N(1) bond lengths are 2.66 Å. There is one shorter (2.66 Å) and one longer (2.79 Å) Sr(1)-O(1) bond length. There are two shorter (2.77 Å) and two longer (3.07 Å) Sr(1)-O(2) bond lengths. Ta(1) is bonded to two equivalent N(1), two equivalent O(1), and two equivalent O(2) atoms to form corner-sharing TaN2O4 octahedra. The corner-sharing octahedral tilt angles range from 0-9°. Both Ta(1)-N(1) bond lengths are 2.06 Å. Both Ta(1)-O(1) bond lengths are 2.03 Å. Both Ta(1)-O(2) bond lengths are 2.12 Å. N(1) is bonded to one Li(1), two equivalent Sr(1), and two equivalent Ta(1) atoms to form a mixture of distorted corner and edge-sharing NSr2LiTa2 trigonal bipyramids. There are two inequivalent O sites. In the first O site, O(1) is bonded in a 3-coordinate geometry to one Li(1), two equivalent Sr(1), and two equivalent Ta(1) atoms. In the second O site, O(2) is bonded in a 6-coordinate geometry to four equivalent Sr(1) and two equivalent Ta(1) atoms.