Sr2LiNH2 crystallizes in the orthorhombic Pnma space group. Li(1) is bonded in a 3-coordinate geometry to one N(1) and two equivalent H(2) atoms. There are two inequivalent Sr sites. In the first Sr site, Sr(1) is bonded in a 6-coordinate geometry to two equivalent N(1), one H(2), and three equivalent H(1) atoms. In the second Sr site, Sr(2) is bonded in a 6-coordinate geometry to three equivalent N(1), one H(2), and two equivalent H(1) atoms. N(1) is bonded to one Li(1), two equivalent Sr(1), and three equivalent Sr(2) atoms to form NSr5Li octahedra that share corners with four equivalent H(1)Sr5 square pyramids, edges with four equivalent N(1)Sr5Li octahedra, and edges with four equivalent H(1)Sr5 square pyramids. There are two inequivalent H sites. In the first H site, H(1) is bonded to two equivalent Sr(2) and three equivalent Sr(1) atoms to form HSr5 square pyramids that share corners with four equivalent N(1)Sr5Li octahedra, edges with four equivalent N(1)Sr5Li octahedra, and edges with four equivalent H(1)Sr5 square pyramids. The corner-sharing octahedral tilt angles range from 3-11°. In the second H site, H(2) is bonded in a 2-coordinate geometry to two equivalent Li(1), one Sr(1), and one Sr(2) atom.
Sr2LiNH2 crystallizes in the orthorhombic Pnma space group. Li(1) is bonded in a 3-coordinate geometry to one N(1) and two equivalent H(2) atoms. The Li(1)-N(1) bond length is 1.96 Å. Both Li(1)-H(2) bond lengths are 2.00 Å. There are two inequivalent Sr sites. In the first Sr site, Sr(1) is bonded in a 6-coordinate geometry to two equivalent N(1), one H(2), and three equivalent H(1) atoms. Both Sr(1)-N(1) bond lengths are 2.54 Å. The Sr(1)-H(2) bond length is 2.62 Å. There is one shorter (2.58 Å) and two longer (2.72 Å) Sr(1)-H(1) bond lengths. In the second Sr site, Sr(2) is bonded in a 6-coordinate geometry to three equivalent N(1), one H(2), and two equivalent H(1) atoms. There is one shorter (2.59 Å) and two longer (2.63 Å) Sr(2)-N(1) bond lengths. The Sr(2)-H(2) bond length is 2.85 Å. Both Sr(2)-H(1) bond lengths are 2.74 Å. N(1) is bonded to one Li(1), two equivalent Sr(1), and three equivalent Sr(2) atoms to form NSr5Li octahedra that share corners with four equivalent H(1)Sr5 square pyramids, edges with four equivalent N(1)Sr5Li octahedra, and edges with four equivalent H(1)Sr5 square pyramids. There are two inequivalent H sites. In the first H site, H(1) is bonded to two equivalent Sr(2) and three equivalent Sr(1) atoms to form HSr5 square pyramids that share corners with four equivalent N(1)Sr5Li octahedra, edges with four equivalent N(1)Sr5Li octahedra, and edges with four equivalent H(1)Sr5 square pyramids. The corner-sharing octahedral tilt angles range from 3-11°. In the second H site, H(2) is bonded in a 2-coordinate geometry to two equivalent Li(1), one Sr(1), and one Sr(2) atom.