Li17(AgSn2)3 crystallizes in the trigonal P31m space group. There are seven inequivalent Li sites. In the first Li site, Li(1) is bonded in a 10-coordinate geometry to one Li(5), two equivalent Li(3), two equivalent Li(6), one Ag(1), one Sn(2), and three equivalent Sn(1) atoms. In the second Li site, Li(2) is bonded in a 6-coordinate geometry to two equivalent Li(4), two equivalent Ag(2), one Sn(1), and three equivalent Sn(2) atoms. In the third Li site, Li(3) is bonded in a 6-coordinate geometry to two equivalent Li(1), two equivalent Ag(2), one Sn(1), and three equivalent Sn(2) atoms. In the fourth Li site, Li(4) is bonded in a 11-coordinate geometry to one Li(6), three equivalent Li(2), three equivalent Li(5), one Ag(2), and three equivalent Sn(1) atoms. In the fifth Li site, Li(5) is bonded in a 5-coordinate geometry to one Li(1), two equivalent Li(4), one Ag(1), one Sn(2), and three equivalent Sn(1) atoms. In the sixth Li site, Li(6) is bonded in a 4-coordinate geometry to one Li(4), three equivalent Li(1), one Ag(2), and three equivalent Sn(1) atoms. In the seventh Li site, Li(7) is bonded in a 4-coordinate geometry to one Ag(1) and three equivalent Sn(2) atoms. There are two inequivalent Ag sites. In the first Ag site, Ag(1) is bonded in a 10-coordinate geometry to one Li(7), three equivalent Li(1), three equivalent Li(5), and three equivalent Sn(1) atoms. In the second Ag site, Ag(2) is bonded in a 11-coordinate geometry to one Li(4), one Li(6), three equivalent Li(2), three equivalent Li(3), and three equivalent Sn(2) atoms. There are two inequivalent Sn sites. In the first Sn site, Sn(1) is bonded in a 13-coordinate geometry to one Li(2), one Li(3), two equivalent Li(4), two equivalent Li(6), three equivalent Li(1), three equivalent Li(5), and one Ag(1) atom. In the second Sn site, Sn(2) is bonded in a 11-coordinate geometry to one Li(1), one Li(5), one Li(7), three equivalent Li(2), three equivalent Li(3), and two equivalent Ag(2) atoms.
Li17(AgSn2)3 crystallizes in the trigonal P31m space group. There are seven inequivalent Li sites. In the first Li site, Li(1) is bonded in a 10-coordinate geometry to one Li(5), two equivalent Li(3), two equivalent Li(6), one Ag(1), one Sn(2), and three equivalent Sn(1) atoms. The Li(1)-Li(5) bond length is 2.73 Å. Both Li(1)-Li(3) bond lengths are 3.02 Å. Both Li(1)-Li(6) bond lengths are 2.84 Å. The Li(1)-Ag(1) bond length is 2.84 Å. The Li(1)-Sn(2) bond length is 2.90 Å. There are two shorter (3.02 Å) and one longer (3.14 Å) Li(1)-Sn(1) bond length. In the second Li site, Li(2) is bonded in a 6-coordinate geometry to two equivalent Li(4), two equivalent Ag(2), one Sn(1), and three equivalent Sn(2) atoms. Both Li(2)-Li(4) bond lengths are 2.97 Å. Both Li(2)-Ag(2) bond lengths are 2.99 Å. The Li(2)-Sn(1) bond length is 2.87 Å. There is one shorter (3.01 Å) and two longer (3.02 Å) Li(2)-Sn(2) bond lengths. In the third Li site, Li(3) is bonded in a 6-coordinate geometry to two equivalent Li(1), two equivalent Ag(2), one Sn(1), and three equivalent Sn(2) atoms. Both Li(3)-Ag(2) bond lengths are 2.95 Å. The Li(3)-Sn(1) bond length is 2.91 Å. There are two shorter (3.02 Å) and one longer (3.08 Å) Li(3)-Sn(2) bond length. In the fourth Li site, Li(4) is bonded in a 11-coordinate geometry to one Li(6), three equivalent Li(2), three equivalent Li(5), one Ag(2), and three equivalent Sn(1) atoms. The Li(4)-Li(6) bond length is 2.80 Å. All Li(4)-Li(5) bond lengths are 2.79 Å. The Li(4)-Ag(2) bond length is 2.85 Å. All Li(4)-Sn(1) bond lengths are 2.99 Å. In the fifth Li site, Li(5) is bonded in a 5-coordinate geometry to one Li(1), two equivalent Li(4), one Ag(1), one Sn(2), and three equivalent Sn(1) atoms. The Li(5)-Ag(1) bond length is 2.79 Å. The Li(5)-Sn(2) bond length is 2.91 Å. There are two shorter (3.00 Å) and one longer (3.01 Å) Li(5)-Sn(1) bond length. In the sixth Li site, Li(6) is bonded in a 4-coordinate geometry to one Li(4), three equivalent Li(1), one Ag(2), and three equivalent Sn(1) atoms. The Li(6)-Ag(2) bond length is 2.88 Å. All Li(6)-Sn(1) bond lengths are 2.93 Å. In the seventh Li site, Li(7) is bonded in a 4-coordinate geometry to one Ag(1) and three equivalent Sn(2) atoms. The Li(7)-Ag(1) bond length is 3.00 Å. All Li(7)-Sn(2) bond lengths are 2.79 Å. There are two inequivalent Ag sites. In the first Ag site, Ag(1) is bonded in a 10-coordinate geometry to one Li(7), three equivalent Li(1), three equivalent Li(5), and three equivalent Sn(1) atoms. All Ag(1)-Sn(1) bond lengths are 2.86 Å. In the second Ag site, Ag(2) is bonded in a 11-coordinate geometry to one Li(4), one Li(6), three equivalent Li(2), three equivalent Li(3), and three equivalent Sn(2) atoms. All Ag(2)-Sn(2) bond lengths are 2.77 Å. There are two inequivalent Sn sites. In the first Sn site, Sn(1) is bonded in a 13-coordinate geometry to one Li(2), one Li(3), two equivalent Li(4), two equivalent Li(6), three equivalent Li(1), three equivalent Li(5), and one Ag(1) atom. In the second Sn site, Sn(2) is bonded in a 11-coordinate geometry to one Li(1), one Li(5), one Li(7), three equivalent Li(2), three equivalent Li(3), and two equivalent Ag(2) atoms.