Materials Data on Zn2FeS3 by Materials Project

Abstract

FeZn2S3 is Chalcopyrite-like structured and crystallizes in the orthorhombic Imm2 space group. The structure is three-dimensional. Fe2+ is bonded to four S2- atoms to form FeS4 tetrahedra that share corners with two equivalent FeS4 tetrahedra and corners with ten equivalent ZnS4 tetrahedra. There are two shorter (2.33 Å) and two longer (2.35 Å) Fe–S bond lengths. Zn2+ is bonded to four S2- atoms to form ZnS4 tetrahedra that share corners with five equivalent FeS4 tetrahedra and corners with seven equivalent ZnS4 tetrahedra. All Zn–S bond lengths are 2.36 Å. There are two inequivalent S2- sites. In the first S2- site, S2- is bonded to two equivalent Fe2+ and two equivalent Zn2+ atoms to form corner-sharing SZn2Fe2 tetrahedra. In the second S2- site, S2- is bonded to one Fe2+ and three equivalent Zn2+ atoms to form corner-sharing SZn3Fe tetrahedra.