AgTl3Te2 crystallizes in the monoclinic P2_1/c space group. Ag(1) is bonded in a 9-coordinate geometry to two equivalent Tl(2), three equivalent Tl(3), one Te(1), and three equivalent Te(2) atoms. There are three inequivalent Tl sites. In the first Tl site, Tl(1) is bonded in a 3-coordinate geometry to three equivalent Te(1) atoms. In the second Tl site, Tl(2) is bonded in a 4-coordinate geometry to two equivalent Ag(1), one Te(1), and two equivalent Te(2) atoms. In the third Tl site, Tl(3) is bonded in a 3-coordinate geometry to three equivalent Ag(1), one Te(2), and two equivalent Te(1) atoms. There are two inequivalent Te sites. In the first Te site, Te(1) is bonded in a 7-coordinate geometry to one Ag(1), one Tl(2), two equivalent Tl(3), and three equivalent Tl(1) atoms. In the second Te site, Te(2) is bonded in a 6-coordinate geometry to three equivalent Ag(1), one Tl(3), and two equivalent Tl(2) atoms.
AgTl3Te2 crystallizes in the monoclinic P2_1/c space group. Ag(1) is bonded in a 9-coordinate geometry to two equivalent Tl(2), three equivalent Tl(3), one Te(1), and three equivalent Te(2) atoms. There is one shorter (3.29 Å) and one longer (3.61 Å) Ag(1)-Tl(2) bond length. There are a spread of Ag(1)-Tl(3) bond distances ranging from 3.40-3.67 Å. The Ag(1)-Te(1) bond length is 2.84 Å. There are a spread of Ag(1)-Te(2) bond distances ranging from 2.87-3.05 Å. There are three inequivalent Tl sites. In the first Tl site, Tl(1) is bonded in a 3-coordinate geometry to three equivalent Te(1) atoms. There are two shorter (3.29 Å) and one longer (3.36 Å) Tl(1)-Te(1) bond length. In the second Tl site, Tl(2) is bonded in a 4-coordinate geometry to two equivalent Ag(1), one Te(1), and two equivalent Te(2) atoms. The Tl(2)-Te(1) bond length is 3.47 Å. There is one shorter (3.31 Å) and one longer (3.42 Å) Tl(2)-Te(2) bond length. In the third Tl site, Tl(3) is bonded in a 3-coordinate geometry to three equivalent Ag(1), one Te(2), and two equivalent Te(1) atoms. The Tl(3)-Te(2) bond length is 3.27 Å. There is one shorter (3.38 Å) and one longer (3.56 Å) Tl(3)-Te(1) bond length. There are two inequivalent Te sites. In the first Te site, Te(1) is bonded in a 7-coordinate geometry to one Ag(1), one Tl(2), two equivalent Tl(3), and three equivalent Tl(1) atoms. In the second Te site, Te(2) is bonded in a 6-coordinate geometry to three equivalent Ag(1), one Tl(3), and two equivalent Tl(2) atoms.