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ThBr4 crystallizes in the tetragonal I4_1/amd space group. The structure is three-dimensional. Th4+ is bonded in a 8-coordinate geometry to eight equivalent Br1- atoms. There are four shorter (2.89 Å) and four longer (3.13 Å) Th–Br bond lengths. Br1- is bonded in a distorted water-like geometry to two equivalent Th4+ atoms.
ThBr4 crystallizes in the tetragonal I4_1/a space group. The structure is three-dimensional. Th4+ is bonded in a 8-coordinate geometry to eight equivalent Br1- atoms. There are four shorter (2.95 Å) and four longer (3.05 Å) Th–Br bond lengths. Br1- is bonded in a water-like geometry to two equivalent Th4+ atoms.
Th3Br is Uranium Silicide-like structured and crystallizes in the tetragonal I4/mmm space group. The structure is three-dimensional. there are two inequivalent Th sites. In the first Th site, Th is bonded to four equivalent Br atoms to form a mixture of distorted edge and corner-sharing ThBr4 cuboctahedra. All Th–Br bond lengths are 3.51 Å. In the second Th site, Th is bonded in a square co-planar geometry to four equivalent Br atoms. All Th–Br bond lengths are 3.47 Å. Br is bonded to twelve Th atoms to form a mixture of edge, face, and corner-sharing BrTh12 cuboctahedra.
Th2Br5 crystallizes in the cubic Im-3m space group. The structure is three-dimensional and consists of two Th2Br5 frameworks. Th is bonded to five Br atoms to form corner-sharing ThBr5 square pyramids. There are four shorter (2.93 Å) and one longer (3.05 Å) Th–Br bond lengths. There are two inequivalent Br sites. In the first Br site, Br is bonded in a linear geometry to two equivalent Th atoms. In the second Br site, Br is bonded in an L-shaped geometry to two equivalent Th atoms.
ThBr2 crystallizes in the tetragonal I4_1/a space group. The structure is three-dimensional. Th is bonded in a square co-planar geometry to four equivalent Br atoms. There are two shorter (2.90 Å) and two longer (2.94 Å) Th–Br bond lengths. Br is bonded in a water-like geometry to two equivalent Th atoms.
ThBr2 is Cyanogen Chloride-derived structured and crystallizes in the tetragonal I4_1/amd space group. The structure is zero-dimensional and consists of eight dibromothorium molecules. Th is bonded in a linear geometry to two equivalent Br atoms. Both Th–Br bond lengths are 2.70 Å. Br is bonded in a single-bond geometry to one Th atom.