Materials Data on Ag2S by Materials Project

Abstract

Ag2S crystallizes in the triclinic P1 space group. The structure is three-dimensional. there are six inequivalent Ag1+ sites. In the first Ag1+ site, Ag1+ is bonded in a distorted bent 150 degrees geometry to two S2- atoms. There are one shorter (2.45 Å) and one longer (2.48 Å) Ag–S bond lengths. In the second Ag1+ site, Ag1+ is bonded in a 3-coordinate geometry to three S2- atoms. There are a spread of Ag–S bond distances ranging from 2.49–2.74 Å. In the third Ag1+ site, Ag1+ is bonded in a distorted trigonal planar geometry to four S2- atoms. There are a spread of Ag–S bond distances ranging from 2.51–3.51 Å. In the fourth Ag1+ site, Ag1+ is bonded in a 2-coordinate geometry to three S2- atoms. There are a spread of Ag–S bond distances ranging from 2.48–3.10 Å. In the fifth Ag1+ site, Ag1+ is bonded in a distorted trigonal planar geometry to three S2- atoms. There are a spread of Ag–S bond distances ranging from 2.48–2.76 Å. In the sixth Ag1+ site, Ag1+ is bonded in a 4-coordinate geometry to four S2- atoms. There are a spread of Ag–S bond distances ranging from 2.53–2.93 Å. There are three inequivalent S2- sites. In the first S2- site, S2- is bonded in a 5-coordinate geometry to five Ag1+ atoms. In the second S2- site, S2- is bonded in a 8-coordinate geometry to eight Ag1+ atoms. In the third S2- site, S2- is bonded in a 6-coordinate geometry to six Ag1+ atoms.