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DyTl is Tetraauricupride structured and crystallizes in the cubic Pm-3m space group. The structure is three-dimensional. Dy is bonded in a body-centered cubic geometry to eight equivalent Tl atoms. All Dy–Tl bond lengths are 3.29 Å. Tl is bonded in a body-centered cubic geometry to eight equivalent Dy atoms.
DyTl(PSe3)2 crystallizes in the monoclinic P2_1 space group. The structure is three-dimensional. Dy3+ is bonded in a 8-coordinate geometry to eight Se2- atoms. There are a spread of Dy–Se bond distances ranging from 2.97–3.12 Å. Tl1+ is bonded in a 9-coordinate geometry to nine Se2- atoms. There are a spread of Tl–Se bond distances ranging from 3.29–3.96 Å. There are two inequivalent P4+ sites. In the first P4+ site, P4+ is bonded in a trigonal non-coplanar geometry to three Se2- atoms. There are a spread of P–Se bond distances ranging from 2.19–2.25 Å. In the second P4+ site, P4+ is bonded in a trigonal non-coplanar geometry to three Se2- atoms. There are a spread of P–Se bond distances ranging from 2.16–2.25 Å. There are six inequivalent Se2- sites. In the first Se2- site, Se2- is bonded in a 1-coordinate geometry to one Dy3+, two equivalent Tl1+, and one P4+ atom. In the second Se2- site, Se2- is bonded in a 4-coordinate geometry to one Dy3+, two equivalent Tl1+, and one P4+ atom. In the third Se2- site, Se2- is bonded in a 3-coordinate geometry to two equivalent Dy3+ and one P4+ atom. In the fourth Se2- site, Se2- is bonded in a 1-coordinate geometry to three equivalent Tl1+ and one P4+ atom. In the fifth Se2- site, Se2- is bonded in a distorted trigonal non-coplanar geometry to two equivalent Dy3+, one Tl1+, and one P4+ atom. In the sixth Se2- site, Se2- is bonded in a 3-coordinate geometry to two equivalent Dy3+, one Tl1+, and one P4+ atom.
DyTl(WO4)2 crystallizes in the monoclinic C2/c space group. The structure is three-dimensional. Dy3+ is bonded in a 6-coordinate geometry to six O2- atoms. There are a spread of Dy–O bond distances ranging from 2.29–2.32 Å. W6+ is bonded to six O2- atoms to form a mixture of edge and corner-sharing WO6 octahedra. The corner-sharing octahedral tilt angles are 43°. There are a spread of W–O bond distances ranging from 1.83–2.12 Å. Tl1+ is bonded in a 10-coordinate geometry to ten O2- atoms. There are a spread of Tl–O bond distances ranging from 2.90–3.13 Å. There are four inequivalent O2- sites. In the first O2- site, O2- is bonded in a 4-coordinate geometry to two equivalent W6+ and two equivalent Tl1+ atoms. In the second O2- site, O2- is bonded in a 2-coordinate geometry to one Dy3+, one W6+, and one Tl1+ atom. In the third O2- site, O2- is bonded in a 3-coordinate geometry to one Dy3+, two equivalent W6+, and one Tl1+ atom. In the fourth O2- site, O2- is bonded in a 2-coordinate geometry to one Dy3+, one W6+, and one Tl1+ atom.
DyTl(MoO4)2 crystallizes in the orthorhombic Pbcn space group. The structure is three-dimensional. Dy3+ is bonded in a 8-coordinate geometry to eight O2- atoms. There are a spread of Dy–O bond distances ranging from 2.30–2.56 Å. Mo6+ is bonded in a tetrahedral geometry to four O2- atoms. There are a spread of Mo–O bond distances ranging from 1.76–1.87 Å. Tl1+ is bonded in a 6-coordinate geometry to six O2- atoms. There are a spread of Tl–O bond distances ranging from 2.77–2.98 Å. There are four inequivalent O2- sites. In the first O2- site, O2- is bonded in a distorted trigonal planar geometry to two equivalent Dy3+ and one Mo6+ atom. In the second O2- site, O2- is bonded in a 2-coordinate geometry to one Dy3+, one Mo6+, and one Tl1+ atom. In the third O2- site, O2- is bonded in a distorted single-bond geometry to one Mo6+ and two equivalent Tl1+ atoms. In the fourth O2- site, O2- is bonded in a distorted bent 120 degrees geometry to one Dy3+ and one Mo6+ atom.