RhAs3 is Skutterudite structured and crystallizes in the cubic Im-3 space group. Rh(1) is bonded to six equivalent As(1) atoms to form RhAs6 octahedra that share corners with six equivalent Rh(1)As6 octahedra and corners with twelve equivalent As(1)As2Rh2 tetrahedra. The corner-sharing octahedral tilt angles are 60°. As(1) is bonded to two equivalent Rh(1) and two equivalent As(1) atoms to form distorted AsAs2Rh2 tetrahedra that share corners with four equivalent Rh(1)As6 octahedra, corners with ten equivalent As(1)As2Rh2 tetrahedra, and  an edgeedge with one As(1)As2Rh2 tetrahedra. The corner-sharing octahedral tilt angles range from 69-70°.
RhAs3 is Skutterudite structured and crystallizes in the cubic Im-3 space group. Rh(1) is bonded to six equivalent As(1) atoms to form RhAs6 octahedra that share corners with six equivalent Rh(1)As6 octahedra and corners with twelve equivalent As(1)As2Rh2 tetrahedra. The corner-sharing octahedral tilt angles are 60°. All Rh(1)-As(1) bond lengths are 2.45 Å. As(1) is bonded to two equivalent Rh(1) and two equivalent As(1) atoms to form distorted AsAs2Rh2 tetrahedra that share corners with four equivalent Rh(1)As6 octahedra, corners with ten equivalent As(1)As2Rh2 tetrahedra, and  an edgeedge with one As(1)As2Rh2 tetrahedra. The corner-sharing octahedral tilt angles range from 69-70°. There is one shorter (2.48 Å) and one longer (2.58 Å) As(1)-As(1) bond length.