Materials Data on TlV2AgO6 by Materials Project
AgTl(VO3)2 is Esseneite structured and crystallizes in the monoclinic C2/c space group. The structure is three-dimensional. V5+ is bonded to four O2- atoms to form VO4 tetrahedra that share corners with three equivalent AgO6 octahedra and corners with two equivalent VO4 tetrahedra. The corner-sharing octahedra tilt angles range from 30–58°. There are a spread of V–O bond distances ranging from 1.68–1.83 Å. Ag1+ is bonded to six O2- atoms to form AgO6 octahedra that share corners with six equivalent VO4 tetrahedra and edges with two equivalent AgO6 octahedra. There are a spread of Ag–O bond distances ranging from 2.42–2.56 Å. Tl1+ is bonded in a 8-coordinate geometry to eight O2- atoms. There are a spread of Tl–O bond distances ranging from 2.71–3.30 Å. There are three inequivalent O2- sites. In the first O2- site, O2- is bonded in a distorted bent 150 degrees geometry to two equivalent V5+ and two equivalent Tl1+ atoms. In the second O2- site, O2- is bonded in a distorted single-bond geometry to one V5+, one Ag1+, and one Tl1+ atom. In the third O2- site, O2- is bonded in a 1-coordinate geometry to one V5+, two equivalent Ag1+, and one Tl1+ atom.