Fe2S3 is Corundum structured and crystallizes in the trigonal R-3c space group. Fe(1) is bonded to six equivalent S(1) atoms to form a mixture of edge, face, and corner-sharing FeS6 octahedra. The corner-sharing octahedral tilt angles range from 49-56°. S(1) is bonded to four equivalent Fe(1) atoms to form a mixture of distorted edge and corner-sharing SFe4 trigonal pyramids.
Fe2S3 is Corundum structured and crystallizes in the trigonal R-3c space group. Fe(1) is bonded to six equivalent S(1) atoms to form a mixture of edge, face, and corner-sharing FeS6 octahedra. The corner-sharing octahedral tilt angles range from 49-56°. There are three shorter (2.22 Å) and three longer (2.31 Å) Fe(1)-S(1) bond lengths. S(1) is bonded to four equivalent Fe(1) atoms to form a mixture of distorted edge and corner-sharing SFe4 trigonal pyramids.