Pr3AsBr3 crystallizes in the cubic I4_132 space group. Pr(1) is bonded to two equivalent As(1) and four equivalent Br(1) atoms to form a mixture of edge and corner-sharing PrAs2Br4 octahedra. The corner-sharing octahedral tilt angles range from 4-7°. As(1) is bonded to six equivalent Pr(1) atoms to form edge-sharing AsPr6 octahedra. Br(1) is bonded in a rectangular see-saw-like geometry to four equivalent Pr(1) atoms.
Pr3AsBr3 crystallizes in the cubic I4_132 space group. Pr(1) is bonded to two equivalent As(1) and four equivalent Br(1) atoms to form a mixture of edge and corner-sharing PrAs2Br4 octahedra. The corner-sharing octahedral tilt angles range from 4-7°. Both Pr(1)-As(1) bond lengths are 2.88 Å. There are two shorter (3.09 Å) and two longer (3.15 Å) Pr(1)-Br(1) bond lengths. As(1) is bonded to six equivalent Pr(1) atoms to form edge-sharing AsPr6 octahedra. Br(1) is bonded in a rectangular see-saw-like geometry to four equivalent Pr(1) atoms.