Materials Data on FeAgS2 by Materials Project

Abstract

AgFeS2 is Chalcopyrite structured and crystallizes in the tetragonal I-42d space group. The structure is three-dimensional. Fe3+ is bonded to four equivalent S2- atoms to form FeS4 tetrahedra that share corners with four equivalent FeS4 tetrahedra and corners with eight equivalent AgS4 tetrahedra. All Fe–S bond lengths are 2.21 Å. Ag1+ is bonded to four equivalent S2- atoms to form AgS4 tetrahedra that share corners with four equivalent AgS4 tetrahedra and corners with eight equivalent FeS4 tetrahedra. All Ag–S bond lengths are 2.55 Å. S2- is bonded to two equivalent Fe3+ and two equivalent Ag1+ atoms to form corner-sharing SFe2Ag2 tetrahedra.