Materials Data on Cu2Ag2O3 by Materials Project
Ag2Cu2O3 crystallizes in the tetragonal I4_1/amd space group. The structure is three-dimensional. Ag1+ is bonded in a linear geometry to two equivalent O2- atoms. Both Ag–O bond lengths are 2.11 Å. Cu2+ is bonded in a square co-planar geometry to four O2- atoms. There is two shorter (1.92 Å) and two longer (2.01 Å) Cu–O bond length. There are two inequivalent O2- sites. In the first O2- site, O2- is bonded to two equivalent Ag1+ and two equivalent Cu2+ atoms to form a mixture of corner and edge-sharing OCu2Ag2 tetrahedra. In the second O2- site, O2- is bonded to four equivalent Cu2+ atoms to form distorted OCu4 tetrahedra that share corners with eight OCu4 tetrahedra and edges with two equivalent OCu2Ag2 tetrahedra.
36 MATERIALS SCIENCE↗