Ac2S3 is Corundum structured and crystallizes in the trigonal R-3c space group. Ac(1) is bonded to six equivalent S(1) atoms to form a mixture of distorted corner, edge, and face-sharing AcS6 octahedra. The corner-sharing octahedral tilt angles range from 48-66°. S(1) is bonded to four equivalent Ac(1) atoms to form a mixture of distorted corner and edge-sharing SAc4 trigonal pyramids.
Ac2S3 is Corundum structured and crystallizes in the trigonal R-3c space group. Ac(1) is bonded to six equivalent S(1) atoms to form a mixture of distorted corner, edge, and face-sharing AcS6 octahedra. The corner-sharing octahedral tilt angles range from 48-66°. There are three shorter (2.97 Å) and three longer (3.04 Å) Ac(1)-S(1) bond lengths. S(1) is bonded to four equivalent Ac(1) atoms to form a mixture of distorted corner and edge-sharing SAc4 trigonal pyramids.