LiSi2(AgO)8 crystallizes in the tetragonal P-4 space group. Li(1) is bonded in a 4-coordinate geometry to four equivalent O(1) atoms. There are two inequivalent Ag sites. In the first Ag site, Ag(1) is bonded in a distorted T-shaped geometry to one O(1) and two equivalent O(2) atoms. In the second Ag site, Ag(2) is bonded in a distorted bent 150 degrees geometry to one O(1) and one O(2) atom. There are two inequivalent Si sites. In the first Si site, Si(1) is bonded in a tetrahedral geometry to four equivalent O(2) atoms. In the second Si site, Si(2) is bonded in a tetrahedral geometry to four equivalent O(1) atoms. There are two inequivalent O sites. In the first O site, O(1) is bonded in a 4-coordinate geometry to one Li(1), one Ag(1), one Ag(2), and one Si(2) atom. In the second O site, O(2) is bonded to one Ag(2), two equivalent Ag(1), and one Si(1) atom to form distorted corner-sharing OSiAg3 tetrahedra.
LiSi2(AgO)8 crystallizes in the tetragonal P-4 space group. Li(1) is bonded in a 4-coordinate geometry to four equivalent O(1) atoms. All Li(1)-O(1) bond lengths are 1.95 Å. There are two inequivalent Ag sites. In the first Ag site, Ag(1) is bonded in a distorted T-shaped geometry to one O(1) and two equivalent O(2) atoms. The Ag(1)-O(1) bond length is 2.29 Å. There is one shorter (2.23 Å) and one longer (2.61 Å) Ag(1)-O(2) bond length. In the second Ag site, Ag(2) is bonded in a distorted bent 150 degrees geometry to one O(1) and one O(2) atom. The Ag(2)-O(1) bond length is 2.24 Å. The Ag(2)-O(2) bond length is 2.20 Å. There are two inequivalent Si sites. In the first Si site, Si(1) is bonded in a tetrahedral geometry to four equivalent O(2) atoms. All Si(1)-O(2) bond lengths are 1.66 Å. In the second Si site, Si(2) is bonded in a tetrahedral geometry to four equivalent O(1) atoms. All Si(2)-O(1) bond lengths are 1.66 Å. There are two inequivalent O sites. In the first O site, O(1) is bonded in a 4-coordinate geometry to one Li(1), one Ag(1), one Ag(2), and one Si(2) atom. In the second O site, O(2) is bonded to one Ag(2), two equivalent Ag(1), and one Si(1) atom to form distorted corner-sharing OSiAg3 tetrahedra.