Li2Sr3 crystallizes in the tetragonal P4_2/mnm space group. Li(1) is bonded in a 8-coordinate geometry to two equivalent Li(1), two equivalent Sr(3), three equivalent Sr(1), and three equivalent Sr(2) atoms. There are three inequivalent Sr sites. In the first Sr site, Sr(1) is bonded in a 6-coordinate geometry to six equivalent Li(1) and four equivalent Sr(3) atoms. In the second Sr site, Sr(3) is bonded in a 14-coordinate geometry to four equivalent Li(1), two equivalent Sr(3), four equivalent Sr(1), and four equivalent Sr(2) atoms. In the third Sr site, Sr(2) is bonded in a 6-coordinate geometry to six equivalent Li(1) and four equivalent Sr(3) atoms.
Li2Sr3 crystallizes in the tetragonal P4_2/mnm space group. Li(1) is bonded in a 8-coordinate geometry to two equivalent Li(1), two equivalent Sr(3), three equivalent Sr(1), and three equivalent Sr(2) atoms. There is one shorter (3.12 Å) and one longer (3.16 Å) Li(1)-Li(1) bond length. Both Li(1)-Sr(3) bond lengths are 4.00 Å. There is one shorter (3.65 Å) and two longer (3.83 Å) Li(1)-Sr(1) bond lengths. There are two shorter (3.68 Å) and one longer (3.72 Å) Li(1)-Sr(2) bond length. There are three inequivalent Sr sites. In the first Sr site, Sr(1) is bonded in a 6-coordinate geometry to six equivalent Li(1) and four equivalent Sr(3) atoms. All Sr(1)-Sr(3) bond lengths are 4.33 Å. In the second Sr site, Sr(3) is bonded in a 14-coordinate geometry to four equivalent Li(1), two equivalent Sr(3), four equivalent Sr(1), and four equivalent Sr(2) atoms. Both Sr(3)-Sr(3) bond lengths are 4.39 Å. All Sr(3)-Sr(2) bond lengths are 4.14 Å. In the third Sr site, Sr(2) is bonded in a 6-coordinate geometry to six equivalent Li(1) and four equivalent Sr(3) atoms.