Materials Data on K2VAgS4 by Materials Project

Abstract

K2VAgS4 crystallizes in the orthorhombic Fddd space group. The structure is three-dimensional. K1+ is bonded in a 8-coordinate geometry to eight equivalent S2- atoms. There are a spread of K–S bond distances ranging from 3.32–3.78 Å. V5+ is bonded to four equivalent S2- atoms to form VS4 tetrahedra that share edges with two equivalent AgS4 tetrahedra. All V–S bond lengths are 2.19 Å. Ag1+ is bonded to four equivalent S2- atoms to form distorted AgS4 tetrahedra that share edges with two equivalent VS4 tetrahedra. All Ag–S bond lengths are 2.53 Å. S2- is bonded in a 1-coordinate geometry to four equivalent K1+, one V5+, and one Ag1+ atom.