Materials Data on Ag2S by Materials Project

Abstract

Ag2S crystallizes in the monoclinic P2_1/c space group. The structure is two-dimensional and consists of one Ag2S sheet oriented in the (-1, 0, 2) direction. there are two inequivalent Ag1+ sites. In the first Ag1+ site, Ag1+ is bonded in a distorted linear geometry to two equivalent S2- atoms. There are one shorter (2.42 Å) and one longer (2.43 Å) Ag–S bond lengths. In the second Ag1+ site, Ag1+ is bonded in a bent 150 degrees geometry to two equivalent S2- atoms. There are one shorter (2.48 Å) and one longer (2.50 Å) Ag–S bond lengths. S2- is bonded in a distorted rectangular see-saw-like geometry to four Ag1+ atoms.