UCoS3 crystallizes in the orthorhombic Pnma space group. U(1) is bonded in a 8-coordinate geometry to two equivalent S(2) and six equivalent S(1) atoms. Co(1) is bonded to two equivalent S(2) and four equivalent S(1) atoms to form corner-sharing CoS6 octahedra. The corner-sharing octahedral tilt angles range from 40-45°. There are two inequivalent S sites. In the first S site, S(1) is bonded to three equivalent U(1) and two equivalent Co(1) atoms to form distorted SU3Co2 trigonal bipyramids that share corners with nine equivalent S(1)U3Co2 trigonal bipyramids, corners with four equivalent S(2)U2Co2 trigonal pyramids, edges with six equivalent S(1)U3Co2 trigonal bipyramids, and edges with three equivalent S(2)U2Co2 trigonal pyramids. In the second S site, S(2) is bonded to two equivalent U(1) and two equivalent Co(1) atoms to form distorted SU2Co2 trigonal pyramids that share corners with eight equivalent S(1)U3Co2 trigonal bipyramids, corners with four equivalent S(2)U2Co2 trigonal pyramids, and edges with six equivalent S(1)U3Co2 trigonal bipyramids.
UCoS3 crystallizes in the orthorhombic Pnma space group. U(1) is bonded in a 8-coordinate geometry to two equivalent S(2) and six equivalent S(1) atoms. There is one shorter (2.64 Å) and one longer (2.72 Å) U(1)-S(2) bond length. There are a spread of U(1)-S(1) bond distances ranging from 2.68-2.88 Å. Co(1) is bonded to two equivalent S(2) and four equivalent S(1) atoms to form corner-sharing CoS6 octahedra. The corner-sharing octahedral tilt angles range from 40-45°. Both Co(1)-S(2) bond lengths are 2.27 Å. All Co(1)-S(1) bond lengths are 2.40 Å. There are two inequivalent S sites. In the first S site, S(1) is bonded to three equivalent U(1) and two equivalent Co(1) atoms to form distorted SU3Co2 trigonal bipyramids that share corners with nine equivalent S(1)U3Co2 trigonal bipyramids, corners with four equivalent S(2)U2Co2 trigonal pyramids, edges with six equivalent S(1)U3Co2 trigonal bipyramids, and edges with three equivalent S(2)U2Co2 trigonal pyramids. In the second S site, S(2) is bonded to two equivalent U(1) and two equivalent Co(1) atoms to form distorted SU2Co2 trigonal pyramids that share corners with eight equivalent S(1)U3Co2 trigonal bipyramids, corners with four equivalent S(2)U2Co2 trigonal pyramids, and edges with six equivalent S(1)U3Co2 trigonal bipyramids.