RuSbAs crystallizes in the monoclinic P2/m space group. There are two inequivalent Ru sites. In the first Ru site, Ru(1) is bonded to four equivalent Sb(1) and two equivalent As(1) atoms to form distorted RuSb4As2 octahedra that share corners with eight equivalent Ru(2)Sb2As4 octahedra, corners with two equivalent As(1)AsRu3 tetrahedra, and edges with two equivalent Ru(1)Sb4As2 octahedra. The corner-sharing octahedral tilt angles range from 50-55°. In the second Ru site, Ru(2) is bonded to two equivalent Sb(1) and four equivalent As(1) atoms to form distorted RuSb2As4 octahedra that share corners with eight equivalent Ru(1)Sb4As2 octahedra, corners with four equivalent As(1)AsRu3 tetrahedra, and edges with two equivalent Ru(2)Sb2As4 octahedra. The corner-sharing octahedral tilt angles range from 50-55°. Sb(1) is bonded in a 6-coordinate geometry to one Ru(2), two equivalent Ru(1), and three equivalent Sb(1) atoms. As(1) is bonded to one Ru(1), two equivalent Ru(2), and one As(1) atom to form distorted AsAsRu3 tetrahedra that share  a cornercorner with one Ru(1)Sb4As2 octahedra, corners with two equivalent Ru(2)Sb2As4 octahedra, corners with five equivalent As(1)AsRu3 tetrahedra, and  an edgeedge with one As(1)AsRu3 tetrahedra. The corner-sharing octahedral tilt angles are 71°.
RuSbAs crystallizes in the monoclinic P2/m space group. There are two inequivalent Ru sites. In the first Ru site, Ru(1) is bonded to four equivalent Sb(1) and two equivalent As(1) atoms to form distorted RuSb4As2 octahedra that share corners with eight equivalent Ru(2)Sb2As4 octahedra, corners with two equivalent As(1)AsRu3 tetrahedra, and edges with two equivalent Ru(1)Sb4As2 octahedra. The corner-sharing octahedral tilt angles range from 50-55°. All Ru(1)-Sb(1) bond lengths are 2.63 Å. Both Ru(1)-As(1) bond lengths are 2.55 Å. In the second Ru site, Ru(2) is bonded to two equivalent Sb(1) and four equivalent As(1) atoms to form distorted RuSb2As4 octahedra that share corners with eight equivalent Ru(1)Sb4As2 octahedra, corners with four equivalent As(1)AsRu3 tetrahedra, and edges with two equivalent Ru(2)Sb2As4 octahedra. The corner-sharing octahedral tilt angles range from 50-55°. Both Ru(2)-Sb(1) bond lengths are 2.59 Å. All Ru(2)-As(1) bond lengths are 2.56 Å. Sb(1) is bonded in a 6-coordinate geometry to one Ru(2), two equivalent Ru(1), and three equivalent Sb(1) atoms. There is one shorter (2.79 Å) and two longer (3.13 Å) Sb(1)-Sb(1) bond lengths. As(1) is bonded to one Ru(1), two equivalent Ru(2), and one As(1) atom to form distorted AsAsRu3 tetrahedra that share  a cornercorner with one Ru(1)Sb4As2 octahedra, corners with two equivalent Ru(2)Sb2As4 octahedra, corners with five equivalent As(1)AsRu3 tetrahedra, and  an edgeedge with one As(1)AsRu3 tetrahedra. The corner-sharing octahedral tilt angles are 71°. The As(1)-As(1) bond length is 2.77 Å.