Tm2S3 is Corundum structured and crystallizes in the trigonal R-3c space group. Tm(1) is bonded to six equivalent S(1) atoms to form a mixture of corner, edge, and face-sharing TmS6 octahedra. The corner-sharing octahedral tilt angles range from 47-60°. S(1) is bonded to four equivalent Tm(1) atoms to form a mixture of distorted corner and edge-sharing STm4 trigonal pyramids.
Tm2S3 is Corundum structured and crystallizes in the trigonal R-3c space group. Tm(1) is bonded to six equivalent S(1) atoms to form a mixture of corner, edge, and face-sharing TmS6 octahedra. The corner-sharing octahedral tilt angles range from 47-60°. There are three shorter (2.66 Å) and three longer (2.74 Å) Tm(1)-S(1) bond lengths. S(1) is bonded to four equivalent Tm(1) atoms to form a mixture of distorted corner and edge-sharing STm4 trigonal pyramids.