Materials Data on Zn2FeS3 by Materials Project

Abstract

FeZn2S3 is Chalcopyrite-like structured and crystallizes in the trigonal P3m1 space group. The structure is three-dimensional. Fe2+ is bonded to four S2- atoms to form FeS4 tetrahedra that share corners with six equivalent FeS4 tetrahedra and corners with six ZnS4 tetrahedra. There are one shorter (2.33 Å) and three longer (2.35 Å) Fe–S bond lengths. There are two inequivalent Zn2+ sites. In the first Zn2+ site, Zn2+ is bonded to four S2- atoms to form ZnS4 tetrahedra that share corners with three equivalent FeS4 tetrahedra and corners with nine ZnS4 tetrahedra. All Zn–S bond lengths are 2.36 Å. In the second Zn2+ site, Zn2+ is bonded to four S2- atoms to form ZnS4 tetrahedra that share corners with three equivalent FeS4 tetrahedra and corners with nine ZnS4 tetrahedra. There are three shorter (2.35 Å) and one longer (2.37 Å) Zn–S bond lengths. There are three inequivalent S2- sites. In the first S2- site, S2- is bonded to one Fe2+ and three equivalent Zn2+ atoms to form corner-sharing SZn3Fe tetrahedra. In the second S2- site, S2- is bonded to four Zn2+ atoms to form corner-sharing SZn4 tetrahedra. In the third S2- site, S2- is bonded to three equivalent Fe2+ and one Zn2+ atom to form corner-sharing SZnFe3 tetrahedra.