LiSn4(PO4)3 crystallizes in the trigonal R3c space group. Li(1) is bonded in a 6-coordinate geometry to three equivalent O(2) and three equivalent O(3) atoms. There are two inequivalent Sn sites. In the first Sn site, Sn(1) is bonded in a distorted T-shaped geometry to one O(1), one O(2), and one O(3) atom. In the second Sn site, Sn(2) is bonded in a distorted T-shaped geometry to three equivalent O(4) atoms. P(1) is bonded in a tetrahedral geometry to one O(1), one O(2), one O(3), and one O(4) atom. There are four inequivalent O sites. In the first O site, O(1) is bonded in a distorted bent 150 degrees geometry to one Sn(1) and one P(1) atom. In the second O site, O(2) is bonded in a 2-coordinate geometry to one Li(1), one Sn(1), and one P(1) atom. In the third O site, O(3) is bonded in a 3-coordinate geometry to one Li(1), one Sn(1), and one P(1) atom. In the fourth O site, O(4) is bonded in a distorted bent 120 degrees geometry to one Sn(2) and one P(1) atom.
LiSn4(PO4)3 crystallizes in the trigonal R3c space group. Li(1) is bonded in a 6-coordinate geometry to three equivalent O(2) and three equivalent O(3) atoms. All Li(1)-O(2) bond lengths are 2.66 Å. All Li(1)-O(3) bond lengths are 2.60 Å. There are two inequivalent Sn sites. In the first Sn site, Sn(1) is bonded in a distorted T-shaped geometry to one O(1), one O(2), and one O(3) atom. The Sn(1)-O(1) bond length is 2.14 Å. The Sn(1)-O(2) bond length is 2.16 Å. The Sn(1)-O(3) bond length is 2.16 Å. In the second Sn site, Sn(2) is bonded in a distorted T-shaped geometry to three equivalent O(4) atoms. All Sn(2)-O(4) bond lengths are 2.13 Å. P(1) is bonded in a tetrahedral geometry to one O(1), one O(2), one O(3), and one O(4) atom. The P(1)-O(1) bond length is 1.55 Å. The P(1)-O(2) bond length is 1.56 Å. The P(1)-O(3) bond length is 1.56 Å. The P(1)-O(4) bond length is 1.56 Å. There are four inequivalent O sites. In the first O site, O(1) is bonded in a distorted bent 150 degrees geometry to one Sn(1) and one P(1) atom. In the second O site, O(2) is bonded in a 2-coordinate geometry to one Li(1), one Sn(1), and one P(1) atom. In the third O site, O(3) is bonded in a 3-coordinate geometry to one Li(1), one Sn(1), and one P(1) atom. In the fourth O site, O(4) is bonded in a distorted bent 120 degrees geometry to one Sn(2) and one P(1) atom.