RuTe2 is Marcasite structured and crystallizes in the orthorhombic Pnnm space group. Ru(1) is bonded to six equivalent Te(1) atoms to form RuTe6 octahedra that share corners with eight equivalent Ru(1)Te6 octahedra, corners with six equivalent Te(1)TeRu3 tetrahedra, and edges with two equivalent Ru(1)Te6 octahedra. The corner-sharing octahedral tilt angles are 57°. Te(1) is bonded to three equivalent Ru(1) and one Te(1) atom to form distorted TeTeRu3 tetrahedra that share corners with three equivalent Ru(1)Te6 octahedra, corners with thirteen equivalent Te(1)TeRu3 tetrahedra, and  an edgeedge with one Te(1)TeRu3 tetrahedra. The corner-sharing octahedral tilt angles range from 75-80°.
RuTe2 is Marcasite structured and crystallizes in the orthorhombic Pnnm space group. Ru(1) is bonded to six equivalent Te(1) atoms to form RuTe6 octahedra that share corners with eight equivalent Ru(1)Te6 octahedra, corners with six equivalent Te(1)TeRu3 tetrahedra, and edges with two equivalent Ru(1)Te6 octahedra. The corner-sharing octahedral tilt angles are 57°. There are two shorter (2.64 Å) and four longer (2.65 Å) Ru(1)-Te(1) bond lengths. Te(1) is bonded to three equivalent Ru(1) and one Te(1) atom to form distorted TeTeRu3 tetrahedra that share corners with three equivalent Ru(1)Te6 octahedra, corners with thirteen equivalent Te(1)TeRu3 tetrahedra, and  an edgeedge with one Te(1)TeRu3 tetrahedra. The corner-sharing octahedral tilt angles range from 75-80°. The Te(1)-Te(1) bond length is 2.90 Å.