Materials Data on AgH9O5 by Materials Project
AgH7O4H2O crystallizes in the orthorhombic P2_12_12_1 space group. The structure is three-dimensional and consists of four water molecules and one AgH7O4 framework. In the AgH7O4 framework, Ag1+ is bonded to six O2- atoms to form face-sharing AgO6 octahedra. There are a spread of Ag–O bond distances ranging from 2.47–2.61 Å. There are seven inequivalent H1+ sites. In the first H1+ site, H1+ is bonded in a single-bond geometry to one O2- atom. The H–O bond length is 0.98 Å. In the second H1+ site, H1+ is bonded in a single-bond geometry to one O2- atom. The H–O bond length is 0.99 Å. In the third H1+ site, H1+ is bonded in a single-bond geometry to one O2- atom. The H–O bond length is 1.00 Å. In the fourth H1+ site, H1+ is bonded in a distorted linear geometry to two O2- atoms. There is one shorter (1.02 Å) and one longer (1.64 Å) H–O bond length. In the fifth H1+ site, H1+ is bonded in a single-bond geometry to one O2- atom. The H–O bond length is 0.98 Å. In the sixth H1+ site, H1+ is bonded in a single-bond geometry to one O2- atom. The H–O bond length is 0.98 Å. In the seventh H1+ site, H1+ is bonded in a linear geometry to two O2- atoms. There is one shorter (1.02 Å) and one longer (1.62 Å) H–O bond length. There are four inequivalent O2- sites. In the first O2- site, O2- is bonded in a distorted water-like geometry to two equivalent Ag1+ and two H1+ atoms. In the second O2- site, O2- is bonded in a single-bond geometry to three H1+ atoms. In the third O2- site, O2- is bonded in a distorted water-like geometry to two equivalent Ag1+ and two H1+ atoms. In the fourth O2- site, O2- is bonded in a water-like geometry to two equivalent Ag1+ and two H1+ atoms.