DOE OSTI2020
Ag2Te crystallizes in the monoclinic Pc space group. The structure is three-dimensional. there are four inequivalent Ag1+ sites. In the first Ag1+ site, Ag1+ is bonded in a distorted trigonal planar geometry to three Ag1+ and three Te2- atoms. There are a spread of Ag–Ag bond distances ranging from 2.97–3.00 Å. There are a spread of Ag–Te bond distances ranging from 2.81–2.84 Å. In the second Ag1+ site, Ag1+ is bonded in a 4-coordinate geometry to two equivalent Ag1+ and four Te2- atoms. There are a spread of Ag–Te bond distances ranging from 2.83–3.06 Å. In the third Ag1+ site, Ag1+ is bonded to four Te2- atoms to form corner-sharing AgTe4 tetrahedra. There are a spread of Ag–Te bond distances ranging from 2.89–2.98 Å. In the fourth Ag1+ site, Ag1+ is bonded in a 4-coordinate geometry to one Ag1+ and four Te2- atoms. There are a spread of Ag–Te bond distances ranging from 2.88–3.00 Å. There are two inequivalent Te2- sites. In the first Te2- site, Te2- is bonded in a 7-coordinate geometry to seven Ag1+ atoms. In the second Te2- site, Te2- is bonded in a body-centered cubic geometry to eight Ag1+ atoms.